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ILC6363
Step-Up DC-DC Converter for One-Cell Lithium-Ion Batteries
Features
* ILC6363CIR-50: Fixed 5.0V output; custom voltages are available upon request * ILC6363CIR-ADJ: Adjustable output to 6V maximum * Capable of 500mA output current * Peak efficiency: > 90% at VOUT = 3.6V, IOUT = 300mA, VIN = 3.6V * No external diode is required (synchronous rectification) * Battery input current of 300A at no load * True load disconnect from battery input in shutdown (1A) * Oscillator frequency: 300kHz 15% * Low battery detector with 100ms transient rejection delay * Power good output flag when VOUT is in regulation * MSOP-8 package voltage exceeds the output voltage by more than 800mV, the output will begin to track the input linearly. The ILC6363 is a direct replacement for ILC6360, in applications where SYNC pin is not used. The PFM or PWM operating mode is user selectable through SEL pin connected to ground or left open, respectively. The choice should be dependent upon the current to be delivered to the load: PFM is recommended for better efficiency at light load,while PWM is recommended for more than 50mA load current. In shutdown mode, the device allows true load disconnect from battery input. Configured as a 300kHz, fixed frequency PWM/PFM boost converter, the ILC6363 can perform a limited buck operation in PFM mode, when the input voltage is up to 0.8V higher than the output voltage. The ILC6363 is unconditionally stable with no external compensation; the sizes of the input and output capacitors influence input and output ripple voltages, respectively. Since the ILC6363 has an internal synchronous rectifier, the standard fixed voltage version requires minimal external components: an inductor, an input capacitor, and an output capacitor. If a tantalum output capacitor is used, then an additional 10F ceramic output capacitor will help reduce output ripple voltage. Other features include a low battery input detector with a built-in100ms transient rejection delay and a power good indicator useful as a system power on reset.
Applications
* Cellular phones * Palmtops, PDAs and portable electronics * Equipment using single Lithium-Ion batteries
Description
The ILC6363 step-up/step-down DC-DC converter is a switch mode converter, capable of supplying up to 500mA output current, at a fixed or user selectable output voltage. The range of input, and output voltage options makes the ILC6363 ideal for Lithium-ion (Li-ion), or any other battery application, where the input voltage range spans above and below the regulated output voltage. When ILC6363's input
Typical Circuit
CIN 100F + VIN 2.7V to 4.2V ON OFF R6 4 SEL POK 5 ILC6363CIR-XX L 1 15H 2 R5 3 LBI/SD LBO 6 Low Battery Detector Output Power Good Output (Fixed VOUT only) VIN GND 7 LX VOUT 8 COUT 10F 100F + + VOUT
Optimized to Maximize Battery Life ILC6363 Efficiency (%)
80
3.6
70 Time
3.0
MSOP-8 PWM PFM
Figure 1.
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Battery Voltage (V)
90
4.2
ILC6363
PRODUCT SPECIFICATION
Pin Assignments
LX 1 VIN 2 LB/SD 3 SEL 4 MSOP
(TOP VIEW)
8 VOUT 7 GND 6 LBO
LX 1 VIN LB/SD 2 3
8 VOUT 7 GND 6 5 MSOP
(TOP VIEW)
LBO VFB
5 POK
SEL 4
ILC6363CIR-XX
ILC6363CIR-ADJ
Pin Definitions
Pin Number 1 2 3 Pin Name LX VIN LBI/SD Pin Function Description Inductor input. Inductor L connected between this pin and the battery Input Voltage. Connect directly to battery Low battery detect input and shutdown. Low battery detect threshold is set with this pin using a potential divider. If this pin is pulled to logic low then the device will shutdown. Select Input. A low logic level signal applied to this pin selects PFM operation mode. If the pin is left open or high logic level is applied, PWM mode is selected. Power Good Output. This open drain output pin will go high when output voltage is within regulation, 0.92*VOUT(NOM) < Vthreshold < 0.98*VOUT(NOM) Feedback Input. This pin sets the adjustable output voltage via an external resistor divider network. The formula for choosing the resistors is shown in the "Applications Information" section. Low Battery Output. This open drain output will go low if the battery voltage is below the low battery threshold set at pin 3. Ground of the IC. Connect this pin to the battery and system ground Regulated output voltage.
4
SEL
POK (ILC6363CIR-XX 5 VFB (ILC6363CIR-ADJ) 6 7 8 LBO GND VOUT
Absolute Maximum Ratings
Parameter Voltage on VOUT pin Voltage on LBI, Sync, LBO, POK, VFB, LX and VIN pins Peak switch current on LX pin Current on LBO pin Continuous total power dissipation at 85C Short circuit current Operating ambient temperature Maximum junction temperature Storage temperature Lead temperature (soldering 10 sec.) Package thermal resistance 2 JA ILX ISINK(LBO) PD ISC TA TJ(MAX) Tstg Symbol VOUT Ratings -0.3 to 7 -0.3 to 7 1 5 315 Internally protected (1 sec. duration) -40 to 85 150 -40 to 125 300 206 Units V V A mA mW A C C C C C/W
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PRODUCT SPECIFICATION
ILC6363
Electrical Characteristics ILC6363CIR-50 in PFM Mode
Parameter Output Voltage Maximum Output Current Load Regulation No Load Battery Input Current Efficiency Symbol VOUT(nom) IOUT VOUT VOUT IIN (no load) IOUT = 0mA IOUT = 20mA Conditions 2.7V < VIN < 4.2V VOUT 0.96VOUT(nom), VIN = 2.7V 1mA < IOUT < 50mA Min. 4.875 4.825
(SEL in LOW State) Unless otherwise specified, all limits are at VIN = VLBI = 3.6V, IOUT = 1mA and TA = 25C, test circuit Figure 1. BOLDFACE type indicate limits over the specified operating temperature range. (Note 2) Typ. 5.0 250 1 300 85 Max. 5.125 5.175 Units V mA % A %
Electrical Characteristics ILC6363CIR-50 in PWM Mode (SEL Open) Unless otherwise specified, all limits are at VIN = VLBI = 3.6V, IOUT = 100mA and TA = 25C, test circuit Figure 1. BOLDFACE type indicate limits over the full operating temperature range. (Note 2)
Parameter Output Voltage Maximum Output Current Load Regulation Efficiency Symbol VOUT(nom) IOUT VOUT VOUT Conditions 2.7V < VIN < 4.2V VOUT 0.92VOUT(nom) 50mA < IOUT < 200mA 50mA < IOUT < 300mA IOUT = 300mA Min. 4.850 4.800 Typ. 5.0 500 3 4 92 Max. 5.150 5.200 Units V mA % %
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ILC6363
PRODUCT SPECIFICATION
General Electrical Characteristics
TA = 25C, VIN = VLBI = 3.6V, IOUT = 50mA, unless otherwise specified. BOLDFACE indicate limits over the specified operating temperature range. (Note 2). Parameter
LBO output voltage low LBO output leakage current Shutdown input voltage low Shutdown input voltage high SEL input voltage high SEL input voltage low POK output voltage low POK output voltage high POK output leakage Current POK threshold POK hysteresis Feedback voltage (ILC6363CIR-ADJ only) Output voltage adjustment range (ILC6363CIR-ADJ only) Minimum startup voltage Input voltage range
Symbol
VLBO(low) ILBO(hi) VSD(low) VSD(hi) VSEL(hi) VSEL(low) VPOK(low) VPOK(hi) IL(POK) VTH(POK VHYST VFB VOUT(ADJ) min VOUT(ADJ) max VIN(start) VIN
Conditions
ISINK = 2mA, open drain output, VLBI = 1V VLBO = 5V
Min.
Typ.
Max.
0.4
Units
V A V V V V V V A V mV V V
1 1 1.5
2 0.4 6 0.4
ISINK = 2mA, open drain output 6V at pin 5 0.92xVOUT 0.95xVOUT 50 1.225 1.212 VIN = 0.9V, IOUT = 50mA VIN = 3V, IOUT = 50mA IOUT = 10mA, PWM mode VOUT = VOUT(nominal) 4% IOUT = 10mA VLBI/SD < 0.4V, VOUT = 0V (short circuit) N-Channel MOSFET P-Channel MOSFET 255 1.175 1.150 Pins LB/SD,SEL and VFB, (Note 3) (Note 4) 100 120 0.9 1 1 1.250 2.5 6 0.9
0.4 6 2 0.98xVOUT 1.275 1.288
1 VOUT(nominal) + 0.8V 10
V V
Battery input current in load disconnect mode Switch on resistance Oscillator frequency LBI input threshold Input leakage current LBI hold time
IIN(SD)
A
Rds(on) fosc VREF ILEAK tHOLD(LBI)
400 750 300 1.250 345 1.325 1.350 200
m kHz V nA mS
Notes: 1. Absolute maximum ratings indicate limits which, when exceeded, may result in damage to the component. Electrical specifications do not apply when operating the device outside its rated operating conditions. 2. Specified min/max limits are production tested or guaranteed through correlation based on statistical control methods. Measurements are taken at constant junction temperature as close to ambient temperature as possible using low duty cycle pulse testing. 3. Guaranteed by design 4. In order to get a valid low-battery-output (LBO) signal, the input voltage must be lower than the low-battery-input (LBI) threshold for a duration greater than the low battery hold time (Hold(LBI)). This feature eliminates false triggering due to voltage transients at the battery terminal.
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PRODUCT SPECIFICATION
ILC6363
Application Information
The ILC6363 performs boost DC-DC conversion by controlling the switch element as shown in the simplified circuit in Figure 3 below.
PWM Mode Operation
The ILC6363 uses a PWM or Pulse Width Modulation technique. The switches are constantly driven at typically 300kHz. The control circuitry varies the power being delivered to the load by varying the on-time, or duty cycle, of the switch SW1 (see Figure 5). Since more on-time translates to higher current build-up in the inductor, the maximum duty cycle of the switch determines the maximum load current that the device can support. The minimum value of the duty cycle determines the minimum load current that can maintain the output voltage within specified values. There are two key advantages of the PWM type controllers. First, because the controller automatically varies the duty cycle of the switch's on-time in response to changing load conditions, the PWM controller will always have an optimized waveform for a steady-state load. This translates to very good efficiency at high currents and minimal ripple on the output. Ripple is due to the output cap constantly accepting and storing the charge received from the inductor, and delivering charge as required by the load. The "pumping" action of the switch produces a sawtooth-shaped voltage as seen by the output. The other key advantage of the PWM type controllers over pulse frequency modulated (PFM) types is that the radiated noise due to the switching transients will always occur at (fixed) switching frequency. Many applications do not care much about switching noise, but certain types of applications, especially communication equipment, need to minimize the high frequency interference within their system as much as possible. Use of the PWM converter in those cases is desirable.
Figure 3. Basic Boost Circuit
When the switch is closed, current is built up through the inductor. When the switch opens, this current is forced through the diode to the output. As this on and off switching continues, the output capacitor voltage builds up due to the charge it is storing from the inductor current. In this way, the output voltage is boosted relative to the input. In general, the switching characteristic is determined by the output voltage desired and the current required by the load. The energy transfer is determined by the power stored in the coil during each switching cycle. PL = (tON, VIN)
Synchronous Rectification
The ILC6363 also uses a technique called "synchronous rectification" which removes the need for the external diode used in other circuits. The diode is replaced with a second switch or in the case of the ILC6363, an FET as shown in Figure 4 below.
VIN SW2 + POK GND
SHUTDOWN CONTROL
PFM Mode Operation
ILC6363 VOUT
LX
SW1
PWM/PFM CONTROLLER
For light loads the ILC6363 can be switched to PFM. This technique conserves power by only switching the output if the current drain requires it. As shown in the Figure 5, the waveform actually skips pulses depending on the power needed by the output. This technique is also called "pulse skipping" because of this characteristic. In the ILC6363, the switchover from PWM to PFM mode is determined by the user to improve efficiency and conserve power. The Dual PWM/PFM mode architecture was designed specifically for applications such as wireless communications, which need the spectral predictability of a PWM-type DC-DC converter, yet also need the highest efficiencies possible, especially in Standby mode.
VREF
+ -
DELAY
LBO
SEL
LB/SD
Figure 4. Simplified ILC6383 block diagram
The two switches now open and close in opposition to each other, directing the flow of current to either charge the inductor or to feed the load. The ILC6363 monitors the voltage on the output capacitor to determine how much and how often to drive the switches.
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ILC6363
PRODUCT SPECIFICATION
Switch Waveform
2 VIN ILC6363 Shutdown R5 3 3.3V RPU 6 LBO
VSET
LBI/SD R6
+ 1.25V Internal Reference 7 GND
DELAY 100ms
VOUT
Figure 5. PFM Waveform
Other Considerations
The other limitation of PWM techniques is that, while the fundamental switching frequency is easier to filter out since it's constant, the higher order harmonics of PWM will be present and may have to be filtered out, as well. Any filtering requirements, though, will vary by application and by actual system design and layout, so generalizations in this area are difficult, at best. However, PWM control for boost DC-DC conversion is widely used, especially in audio-noise sensitive applications or applications requiring strict filtering of the high frequency components.
Figure 6. Low Battery Detector
The output of the low battery detector is an open drain capable of sinking 2mA. A 10k pull-up resistor is recommended on this output.
For VLBI < 1.25V
The low battery detector can also be configured for voltages <1.25V by bootstrapping the LBI input from VOUT. The circuitry for this is shown in Figure 7.
ILC6363 R2 VIN R1 3 LBI/SD + 1.25V Internal Reference 7 GND 8 VOUT
Low Battery Detector
The ILC6363's low battery detector is a based on a CMOS comparator. The negative input of the comparator is tied to an internal 1.25V (nominal) reference, VREF. The positive input is the LBI/SD pin. It uses a simple potential divider arrangement with two resistors to set the LBI threshold as shown in Figure 6. The input bias current of the LBI pin is only 200nA. This means that the resistor values R1 and R2 can be set quite high. The formula for setting the LBI threshold is: VLBI = VREF x (1+R5/R6) Since the LBI input current is negligible (<200nA), this equation is derived by applying voltage divider formula across R6. A typical value for R6 is 100k. R5 = 100k x [(VLBI/VREF) -1], where VREF=1.25V (nom.) The LBI detector has a built in delay of 120ms. In order to get a valid low-battery-output (LBO) signal, the input voltage must be lower than the low-battery-input (LBI) threshold for a duration greater than the low battery hold time (thold(LBI)) of 120msec. This feature eliminates false triggering due to voltage transients at the battery terminal caused by high frequency switching currents.
Figure 7. VLBI < 1.25V
The following equation is used when VIN is lower than 1.25V: R1 = R2 x [(VREF - VIN) / (VOUT - VREF)], where VREF = 1.25V (nom.) This equation can also be derived using voltage divider formula across R2. A typical value for R2 is 100k.
Shut Down
The LBI pin is shared with the shutdown pin. A low voltage (<0.4V) will put the ILC6363 into a power down state. The simplest way to implement this is with an FET across R6 as shown in Figure 8. Note that when the device is not in PWM mode or is in shutdown the low battery detector does not operate.
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PRODUCT SPECIFICATION
ILC6363
When the ILC6363 is shut down, the synchronous rectifier disconnects the output from the input. This ensures that there is only leakage (IIN < 1A typical) from the input to the output so that the battery is not drained when the ILC6363 is shut down.
2 VIN ILC6363 R5 3 ON/OFF LBI/SD R6 7 GND
1A Schottky Diodes -V 0.01F 0.01F ILC6363 1 LX 2 VIN
L VIN
Figure 10. Negative Output Voltage
External Component Selection
Figure 8. Shut Down Control
Inductors
The ILC6363 is designed to work with a 15H inductor in most applications. There are several vendors who supply standard surface mount inductors to this value. Suggested suppliers are shown in table 1. Higher values of inductance will improve efficiency, but will reduce peak inductor current and consequently ripple and noise, but will also limit output current.
Vendor Coilcraft muRata Sumida Part Number D03316P-153 D01608C-153 LQH4N150K LQH3C150K CDR74B-150MC CD43-150 CD54-150 NLC453232T-150K Contact (847) 639-6400 (814) 237-1431 (847) 956-0666
Power Good Output (POK)
The POK output of the ILC6363 indicates when VOUT is within the regulation tolerance of the set output voltage. POK output is an open drain device output capable of sinking 2mA. It will remain pulled low until the output voltage has risen to typically 95% of the specified VOUT. Note that a pull-up resistor must be connected from the POK output (pin 5 of ILC6363CIR-XX) to either ILC6363's output or to some other system voltage source.
Adjustable Output Voltage Selection
The ILC6363-ADJ allows the output voltage to be set using a potential divider. The formula for setting the adjustable output voltage is; VOUT = VFB x (1+R1/R2), R1+R2 100k Where VFB is the threshold set which is 1.25V nominal.
CIN 100F ILC6363-ADJ L 1 15mH VIN 1 to 3-cell ON OFF R6 4 SEL VFB 5 R2 MSOP-8 PWM PFM VOUT = 1.25 (1+R1/R2) R5 3 LBI/SD LBO 6 2 LX VIN VOUT GND 8 + 7 R1 100F COUT VOUT
TDK
(847) 390-4373
Capacitors
Input Capacitor
The input capacitor is necessary to minimize the peak current drawn from the battery. Typically a 100F tantalum capacitor is recommended. Low equivalent series resistance (ESR) capacitors will help to minimize battery voltage ripple.
Output Capacitor
Low ESR capacitors should be used at the output of the ILC6363 to minimize output ripple. The high switching speeds and fast changes in the output capacitor current, mean that the equivalent series impedance of the capacitor can contribute greatly to the output ripple. In order to minimize these effects choose an output capacitor with less than 10nH of equivalent series inductance (ESL) and less than 100m of equivalent series resistance (ESR). Typically these characteristics are met with ceramic capacitors, but may also be met with certain types of tantalum capacitors. Suitable vendors are shown in the following table. 7
Figure 9. Adjustable Voltage Configuration
Negative Voltage Output
It is possible to generate a negative output voltage as a secondary supply using the ILC6363. This negative voltage may be useful in some applications where a negative bias voltage at low current is required.
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PRODUCT SPECIFICATION
ILC6363
Description T495 series tantalum 595D series tantalum TAJ, TPS series tantalum X5R Ceramic X7R Ceramic
Vendor Kemet Sprague AVX TDK AVX muRata
Contact (864) 963-6300 (603) 224-1961 (803) 946-0690 (847) 390-4373 (803) 946-0690 www.murata.com
3.
Keep the traces for the power components wide, typically >50mil or 1.25mm. Place the external networks for LBI and VFB close to the ILC6363, but away from the power components as far as possible.
4.
Grounding
1. Use a star grounding system with separate traces for the power ground and the low power signals such as LBI/SD and VFB. The star should radiate from where the power supply enters the PCB. On multilayer boards use component side copper for grounding around the ILC6363 and connect back to a quiet ground plane using vias.
CIN 100F VIN ILC6363 L1 15 H 1 LX VOUT GND LBO VFB 8 7 6 5 R2 Local "Quiet" Ground Power Ground + COUT 100F R1 VOUT
Layout and Grounding Considerations
High frequency switching and large peak currents means PCB design for DC-DC converters requires careful consideration. As a general rule place the DC-DC converter circuitry well away from any sensitive RF or analog components. The layout of the DC-DC converters and its external components are also based on some simple rules to minimize EMI and output voltage ripple.
2.
2 VIN 3 ON/OFF PWM PFM 4 LBI/SD SEL
R3
Load
Layout
1. Place all power components, ILC6363, inductor, input capacitor and output capacitor as close together as possible. Keep the output capacitor as close to the ILC6363 as possible with very short traces to the VOUT and GND pins. Typically it should be within 0.25 inches or 6mm.
2.
Figure 11. Recommended Application Circuit Schematic for ILC6363CIR-ADJ
U1 ILC6363XX C2 100F L1 1 15H VIN ON OFF SEL PWM PFM GND 4 SEL POK/VFB 5 POK SEL PWM PFM GND 2 VIN 3 LBI GND 7 LBO 6 LX VOUT 8
C1 100F R3
U1 ILC6363ADJ C2 100F L1 1 15H VIN ON LBO OFF 2 VIN 3 LBI 4 SEL GND 7 LBO 6 POK/VFB 5 R2 LX VOUT 8 C1 100F R1 R3 10K LBO VFB VOUT
VOUT R1 10K 10K
NOTE: R1 and R2 are user determined values to set VOUT = VFB(1+R1/R2) R1+R2 100k
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ILC6363
PRODUCT SPECIFICATION
Evaluation Board Parts List for Printed Circuit Board Shown on the Previous Page
Label U1 C L1 R1 and R2 R3 Part Number ILC6363CIR-ADJ GRM44-1 X5R 107K 6.3 LQS66C150M04 -- -- Manufacturer Fairchild Semiconductor muRata muRata Dale, Panasonic Dale, Panasonic Description DC-DC converter 100F, ceramic capacitor 15H, 1.3A User determined values 10k, 1/10W, SMT
Label U1 C L1 R1 and R3
Part Number ILC6363CIR-XX GRM44-1 X5R 107K 6.3 LQS66CA150M04 -
Manufacturer Fairchild Semiconductor muRata muRata Dale, Panasonic
Description DC-DC converter 100F, ceramic capacitor 15H, 1.3A 10k, 1/10W, SMT
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ILC6363
PRODUCT SPECIFICATION
Typical Performance Characteristics ILC6363CIR-ADJ
Unless otherwise specified: TA = 25C, CIN = 100F, COUT = 100F, L = 15H, VOUT = 3.6V
Efficiency vs Output Current (PFM Mode)
100
VIN=3.4V VIN=3.2V VIN=3V
Efficiency vs Input Voltage (PFM Mode)
98 IOUT=40mA 96 IOUT=50mA IOUT=10mA 94 92 90 IOUT=5mA 88 86 IOUT=20mA 84 82 80 78 2.8 3.0 3.2 3.4 3.6 3.8 VIN (V)
95 Efficiency (%) 90 85 80 75
VIN=2.8V
VIN=3.8V
VIN=3.6V VIN=4V VIN=4.2V
Efficiency (%)
0
10
30 20 IOUT (mA)
40
50
4.0
4.2
Efficiency vs Output Current (PWM Mode)
100 95 Efficiency (%) 90
VIN=3.6V VIN=3.4V VIN=3.2V VIN=3.0V
Efficiency vs Input Voltage (PWM Mode)
98 94 Efficiency (%) 90 IOUT=50mA 86 82 78 2.8
IOUT=500mA IOUT=400mA IOUT=100mA IOUT=200mA
VIN=2.8V
85 VIN=3.8V 80 75
VIN=4.2V
VIN=4.0V
0
100
300 200 IOUT (mA)
400
500
3.0
3.2
3.4 3.6 VIN (V)
3.8
4.0
4.2
Line Regulation
3.7 3.6 3.5 VOUT (V) VOUT (V) 3.4 3.3 3.2 3.1 3.0 2.8 3.0 3.2 3.4 3.6 VIN (V) 3.8 4.0 4.2
IOUT=50mA IOUT=200mA IOUT=500mA IOUT=300mA IOUT=400mA IOUT=3mA VOUT=(nom)=3.6V
Load Regulation
3.7 3.6 3.5
VIN=2.8V VIN=4.0V VIN=4.2V
3.4 3.3 3.2 3.1 3.0 0
VIN=3.8V VIN=3.6V VIN=3.4V VIN=3.2V VIN=3.0V
50 100 150 200 250 300 350 400 450 500 IOUT (mA)
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PRODUCT SPECIFICATION
ILC6363
Typical Performance Characteristics ILC6363CIR-ADJ
Unless otherwise specified: TA = 25C, CIN = 100F, COUT = 100F, L = 15H, VOUT = 3.6V
Output Ripple Voltage vs Input Voltage
160 Ripple Current (mApp) Output Ripple (mVpp) 140 120 100 80 60 40 20 0 2.8
IOUT=50mA IOUT=200mA IOUT=400mA IOUT=0mA, 10mA IOUT=100mA IOUT=0mA, 10mA 50mA IOUT=500mA
Ripple Current vs Input Voltage
160 140 120 100 80 60 40 20 0 2.8 3.0 3.2
IOUT=0mA IOUT=10mA IOUT=100mA IOUT=100mA IOUT=50mA IOUT=200mA IOUT=400mA IOUT=500mA
3.0
3.2
3.4 3.6 VIN (V)
3.8
4.0
4.2
3.4 3.6 VIN (V)
3.8
4.0
4.2
VIN vs VOUT
VIN(mV) 4.6 3.8 2.8 +50 0 -50
Line Transient Response
VOUT(V)
4.2 VOUT(mV) 4.6 5.2
3.8
IOUT=250mA
3.6 3.4
IOUT=500mA
2.8
3.4
4.0 VIN (V)
500s/div
PWM Mode Load Switching Waveform
VOUT AC Coupled VOUT AC Coupled 1s/div Inductor Current
PFM Mode Load Switching Waveform
Inductor Current
250s/div
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ILC6363
PRODUCT SPECIFICATION
Typical Performance Characteristics ILC6363CIR-ADJ
Unless otherwise specified: TA = 25C, CIN = 100F, COUT = 100F, L = 15H, VOUT = 3.6V (nominal)
VOUT vs Temperature
3.7
VOUT=3.6V (nominal) VIN=4.2V, ILOAD=200mA VIN=2.8V, ILOAD=200mA
Low Battery Output (VIN < VTH for Greater than 100ms) 10k pull-up resistor from LBO to 3V supply
4 LBO (V) 3 2 1 0 VIN (V) 1.5 1.0 0.5 0 20ms/div
VIN=1.2V IOUT=40mA
3.6 VOUT (V)
VIN=4.2V, ILOAD=500mA VIN=3.6V, ILOAD=200mA
3.5 3.4
VIN=4.2V, ILOAD=500mA VIN=3.0V, ILOAD=500mA
VIN=2.8V, ILOAD=500mA
3.3 -40 -30 -20-10 0 10 20 30 40 50 60 70 80 90 Temperature C
Low Battery Output (VIN < VTH for Less than 100ms) 10k pull-up resistor from LBO to 3V supply
3 2 1 0 VIN (V) 1.5 1.0 0.5 0 20ms/div
VIN=1.2V IOUT=40mA
Spectral Noise Plot
Output Noise Voltage (mVrms) 3.00 2.40 1.80 1.20 0.60 0 100
First Harmonic 690kHz/0.66mVrms VIN=2.8V IOUT=68mA
4 LBO (V)
Fundamental: 345kHz/2.7mVrms
1k
10k 100k Freq (Hz)
1M
Spectral Noise Plot
Output Noise Voltage (dBVrms) -42 -62 -82
345kHz IF Band:2.6Vrms VIN=2.8V IOUT=66mA
-102 -122 -142 255k
335k
415k 495k Freq (Hz)
575k
655k
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PRODUCT SPECIFICATION
ILC6363
Mechanical Dimensions
8 Lead MSOP
0.122 (3.1) 0.114 (2.9)
Pin 1 identifier
0.122 (3.1) 0.114 (2.9)
0.244 (5.15) 0.228 (4.65)
0.025 (.65)BSC 0.009 (.23) 0.005 (.13)
0.043 (1.1) 0.031 (.80)
(0-10)
0.016 (.40) 0.01 (.25)
0.006 (.15) 0.004 (.05)
0.027 (.70) 0.016 (.40)
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ILC6363
PRODUCT SPECIFICATION
Ordering Information for Ta = -40C to +85C, MSOP-8 Package
Part Number ILC6363CIR50X ILC6363CIRADJX Output Voltage 5.0 Adjustable
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.
www.fairchildsemi.com 5/21/02 0.0m 003 Stock#DS30006363 2002 Fairchild Semiconductor Corporation
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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