View MIC33030-4YHJ_5025230.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MIC33030
8MHz 400mA Internal Inductor Buck Regulator with HyperLight LoadTM
General Description
The MIC33030 is a high-efficiency, 8MHz, 400mA synchronous buck regulator with an internal inductor and HyperLight LoadTM mode. HyperLight LoadTM provides very-high efficiency at light loads and ultra-fast transient response that is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is the very-low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 2.5mm x 2.0mm MLF(R) package saves precious board space and requires only two external capacitors. The MIC33030 is designed for use with tiny output capacitors as small as 2.2F. This gives the MIC33030 the ease of use of an LDO with the efficiency of a HyperLight LoadTM DC converter. The MIC33030 achieves efficiency in HyperLight LoadTM mode as high as 78% at 1mA, with a very-low quiescent current of 21A. At higher loads, the MIC33030 provides a constant switching frequency up to 8MHz. The MIC33030 is available in a 10-pin 2.5mm x 2.0mm MLF(R) package with an operating junction temperature range of -40C to +125C. Datasheets and support documentation can be found on Micrel's web site at: www.micrel.com.
Features
* Internal Inductor - Simplifies design to two external capacitors * Input voltage: 2.7V to 5.5V * Output voltage accuracy of 2.5% over temperature * 400mA output current * Efficiency up to 78% at 1mA * 21A typical quiescent current * Up to 8MHz PWM operation in continuous mode * Ultra-fast transient response * Low-voltage output ripple - 30mVpp ripple in HyperLight LoadTM mode - 7mV output voltage ripple in full PWM mode * Fully-integrated MOSFET switches * 0.01A shutdown current * Thermal shutdown and current-limit protection * Fixed and adjustable output voltage options available (0.7V to 3.6V) * 2.5mm x 2.0mm 10-Lead MLF(R) * -40C to +125C junction temperature range
Applications
* Mobile handsets * Portable media/MP3 players * Portable navigation devices (GPS) * WiFi/WiMax/WiBro modules * Digital Cameras * Wireless LAN cards * USB-powered devices * Portable applications ___________________________________________________________________________________________________________
Typical Application
Fixed-Output MIC33030
HyperLight Load is a trademark of Micrel, Inc. MLF and MicroLeadFrame are registered trademark Amkor Technology Inc.
Adjustable-Output MIC33030
Micrel Inc. * 2180 Fortune Drive * San Jose, CA 95131 * USA * tel +1 (408) 944-0800 * fax + 1 (408) 474-1000 * http://www.micrel.com
February 2011
M9999-020311-C
Micrel Inc.
MIC33030
Ordering Information
Part Number MIC33030-AYHJ MIC33030-JYHJ MIC33030-GYHJ MIC33030-4YHJ
Notes: 1. 2. Other options available. Contact Micrel for details. Thin MLF is GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
(R)
Marking Code 3GFA 3GFJ 3GFG 3GF4
Nominal Output Voltage ADJ 2.5V 1.8V 1.2V
Junction Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C
Package 10-pin 2.5mm x 2.0mm MLF(R) 10-pin 2.5mm x 2.0mm MLF(R) 10-pin 2.5mm x 2.0mm MLF 10-pin 2.5mm x 2.0mm MLF
(R) (R)
Lead Finish Pb-Free Pb-Free Pb-Free Pb-Free
Pin Configuration
2.5mm x 2.0mm MLF(R) (HJ) Fixed (Top View)
2.5mm x 2.0mm MLF(R) (HJ) Adjustable (Top View)
Pin Description
Fixed Option 1 2 - 3 4, 5 6, 7 8 9 10 EP ADJ Option 1 - 2 3 4, 5 6, 7 8 9 10 EP Pin Name SNS NC FB EN SW VOUT PGND AGND VIN HS PAD Pin Function Sense: Connect to VOUT as close to output capacitor as possible to sense output voltage. Not internally connected. Feedback: Connect resistor divider at this node to set output voltage. Resistors should be selected based on a nominal VFB = 0.62V. Enable: Logic high enables operation of the regulator. Logic low will shut down the device. Do not leave floating. Switch: Internal power MOSFET output switches. Output Voltage: The output of the regulator. Connect to SNS pin. For adjustable option, connect to feedback resistor network. Power Ground. Analog Ground. Input Voltage: Connect a capacitor to ground to decouple the noise. Connect to PGND or AGND.
February 2011
2
M9999-020311-C
Micrel Inc.
MIC33030
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ........................................... -0.3V to 6V Sense (VSNS)....................................................... -0.3V to 6V Output Switch Voltage .................................... -0.3V to 6V Enable Input Voltage (VEN).. ..............................-0.3V to VIN Storage Temperature Range .. ...............-65C to +150C ESD Rating(3) ................................................. ESD Sensitive
Operating Ratings(2)
Supply Voltage (VIN)... ................................2.7V to 5.5V Enable Input Voltage (VEN) .. ............................0V to VIN Output Voltage Range (VSNS) ......................0.7V to 3.6V Junction Temperature Range (TJ)... ....-40C TJ +125C Thermal Resistance 2.5mm x 2.0mm MLF(R)-10 (JA) .........................76C/W 2.5mm x 2.0mm MLF(R)-10 (JC) .........................45C/W
Electrical Characteristics(4)
TA = 25C; VIN = VEN = 3.6V; COUT = 4.7F unless otherwise specified. Bold values indicate -40C TJ +125C, unless noted.
Parameter Supply Voltage Range Under-Voltage Lockout Threshold Under-Voltage Lockout Hysteresis Quiescent Current Shutdown Current Output Voltage Accuracy Feedback Voltage Current Limit Output Voltage Line Regulation Output Voltage Load Regulation PWM Switch ON-Resistance Maximum Frequency Soft Start Time Enable Threshold Enable Hysteresis Enable Input Current Over-Temperature Shutdown Over-Temperature Shutdown Hysteresis
Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. 4. Specification for packaged product only.
Condition (turn-on) IOUT = 0mA , SNS > 1.2 * VOUT Nominal VEN = 0V; VIN = 5.5V VIN = 3.6V; ILOAD = 20mA Adjustable Option Only SNS = 0.9*VOUTNOM VIN = 3.0V to 5.5V, VOUT = 1.2V, ILOAD = 20mA, 20mA < ILOAD < 400mA, VOUT = 1.2V, VIN = 3.6V ISW = 100mA PMOS ISW = -100mA NMOS IOUT = 120mA VOUT = 90%
Min. 2.7 2.45
Typ. 2.55 100 21 0.01
Max. 5.5 2.65 35 4 +2.5
Units V V mV A A % V
-2.5 0.62 0.41 0.7 0.5 0.7 0.65 0.8 8 100 0.5 0.9 35 0.1 160 20
1
A %/V % MHz s
1.2 2
V mV A C C
February 2011
3
M9999-020311-C
Micrel Inc.
MIC33030
Typical Characteristics
Efficiency vs. Load (VOUT = 2.5V)
90.0% 80.0% 70.0% VIN = 3.6V
Efficiency vs. Load (VOUT = 1.8V)
90.0% 80.0% VIN = 3V
90.0% 80.0%
Efficiency vs. Load (VOUT = 1.5V)
EFFICIENCY (%)
EFFICIENCY (%)
VIN = 5V
70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% VIN = 3.6V
VIN = 3V
EFFICIENCY (%)
60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.1 1 10 100 1000
VIN = 4.2V
70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% VIN = 3.6V VIN = 4.2V
0.0% 0.1 1 10 100 1000
0.0% 0.1 1 10 100 1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
Efficiency vs. Load (VOUT = 1.2V)
80.0% 70.0% VIN = 3V
80.0% 70.0%
Efficiency vs. Load (VOUT = 1V)
30 25 20 15 10 5 0
Quiescent Current vs. Input Voltage (Not Switching)
EFFICIENCY (%)
EFFICIENCY (%)
60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.1 1 10 VIN = 3.6V
VIN = 4.2V
60.0% 50.0% 40.0%
VIN = 3V VIN = 4.2V
VIN = 3.6V 30.0% 20.0% 10.0% 0.0%
INPUT CURRENT (A)
100
1000
0.1
1
10
100
1000
2.5
3.5
4.5
5.5
6.5
LOAD CURRENT (mA)
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
Quiescent Current vs. Temperature (Not Switching)
30 28
Output Voltage vs. Input Voltage
1.9 1.875 1.85 1.825 1.8 1.775 1.75 1.725 IOUT = 120mA
Output Voltage vs. Output Current
1.9 1.875 1.85 1.825
INPUT CURRENT (A)
26 24
VOUT (V)
20 18 16 14 12 10 -60 -40 -20 0 20 40 60 80 100 120 140 160
VOUT (V)
22
IOUT = 20mA
VIN = 4.2V
1.8 1.775 1.75 1.725 1.7 VIN = 3V
VIN = 3.6V
1.7 2.5 3 3.5 4 4.5 5 5.5 6
TEMPERATURE (C)
1
10
100
1000
VIN (V)
IOUT (mA)
February 2011
4
M9999-020311-C
Micrel Inc.
MIC33030
Typical Characteristics (Continued)
Output Voltage vs. Temperature
1.9 1.875
Switching Frequency vs. Temperature
8
Switching Frequency vs. Load Current
10000
SWITCHING FREQUENCY (MHz)
SWITCHING FREQUENCY (kHz)
OUTPUT VOLTAGE (V)
1.85 1.825 1.8 1.775 1.75 1.725 1.7 -60 -40 -20 0 20 40 60 80 100 120 140
7.5 7 6.5 6 5.5 IOUT = 120mA 5 4.5 4 -60 -40 -20 0 20 40 60 80 100 120 140
1000
VIN = 3.6V
100
10 VIN = 3V 1
VIN = 4.2V
0.1
TEMPERATURE (C)
TEMPERATURE (C)
0.01 0.001
0.01
0.1
1
10
100
1000
LOAD CURRENT (mA)
Enable (ON) Voltage vs. Input Voltage
1.2
Enable Voltage vs. Temperature
1.2 VIN = 5.5V 1 VIN = 4.2V
1 0.9 0.8
Current Limit vs. Input Voltage
1
ENABLE VOLTAGE (V)
ENABLE VOLTAGE (V)
0.8
CURRENT LIMIT (A)
0.8 VIN = 3.6V 0.6 VIN = 2.7V 0.4
0.7 0.6 0.5 0.4 0.3 0.2 0.1
0.6
0.4
0.2
0.2
0 2.5 3 3.5 4 4.5 5 5.5 6
0 -60 -40 -20 0 20 40 60 80 100 120 140
0 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
TEMPERATURE (C)
VIN (V)
February 2011
5
M9999-020311-C
Micrel Inc.
MIC33030
Functional Characteristics
February 2011
6
M9999-020311-C
Micrel Inc.
MIC33030
Functional Characteristics (Continued)
February 2011
7
M9999-020311-C
Micrel Inc.
MIC33030
Functional Characteristics (Continued)
February 2011
8
M9999-020311-C
Micrel Inc.
MIC33030
Functional Diagram
Simplified MIC33030 Fixed Functional Block Diagram
Simplified MIC33030 Adjustable Functional Block Diagram
February 2011
9
M9999-020311-C
Micrel Inc.
MIC33030 FB (Adjustable Output Only) The feedback pin (FB) allows the regulated output voltage to be set by applying an external resistor network. The internal reference voltage is 0.62V and the recommended value of R2 is 200k. The output voltage is calculated from the equation below:
R1 VOUT = 0.62V + 1 200k
Functional Description
VIN The input supply (VIN) provides power to the internal MOSFETs for the switch mode regulator along with the internal control circuitry. The VIN operating range is 2.7V to 5.5V so an input capacitor, with a minimum voltage rating of 6.3V, is recommended. Due to the high switching speed, a minimum 2.2F bypass capacitor placed close to VIN and the power ground (PGND) pin is required. Refer to the layout recommendations for details. EN A logic high signal on the enable pin activates the output voltage of the device. A logic low signal on the enable pin deactivates the output and reduces supply current to 0.01A. The MIC33030 features built-in soft-start circuitry that reduces in-rush current and prevents the output voltage from overshooting at start up. Do not leave the enable pin floating. SW The switch (SW) connects directly to one end of the internal inductor and provides the current path during switching cycles. The other end of the inductor is connected to the load, SNS pin and output capacitor. As the MIC33030 has an internal inductor, this pin is not routed in most applications. VOUT The output pin (VOUT) is the output voltage pin following the internal inductor. Connect a minimum of 2.2uF output filter capacitor to this pin. SNS The sense (SNS) pin is connected to the output of the device to provide feedback to the control circuitry. The SNS connection should be placed close to the output capacitor. Refer to the layout recommendations for more details. AGND The analog ground (AGND) is the ground path for the biasing and control circuitry. The current loop for the signal ground should be separate from the power ground (PGND) loop. Refer to the layout recommendations for more details.
Figure 1. MIC33030-AYHJ Schematic
PGND The power ground pin is the ground path for the high current in PWM mode. The current loop for the power ground should be as small as possible and separate from the analog ground (AGND) loop as applicable. Refer to the layout recommendations for more details.
February 2011
10
M9999-020311-C
Micrel Inc.
MIC33030 Maintaining high efficiency serves two purposes. It reduces power dissipation in the power supply, reducing the need for heat sinks and thermal design considerations and it reduces consumption of current for battery powered applications. Reduced current draw from a battery increases the devices operating time which is critical in hand held devices. There are two types of losses in switching converters; DC losses and switching losses. DC losses are simply the power dissipation of I2R. Power is dissipated in the high-side switch during the on cycle. Power loss is equal to the high-side MOSFET RDSON multiplied by the Switch Current squared. During the off cycle, the low-side Nchannel MOSFET conducts, also dissipating power. Device operating current also reduces efficiency. The product of the quiescent (operating) current and the supply voltage represents another DC loss. The current required driving the gates on and off at a constant 8MHz frequency and the switching transitions make up the switching losses.
Application Information
The MIC33030 is a high-performance DC/DC step down regulator offering a small solution size. Supporting an output current up to 400mA inside a tiny 2.5mm x 2.0mm MLF(R) package and requiring only two external components, the MIC33030 meets today's miniature portable electronic device needs. Using the HyperLight LoadTM switching scheme, the MIC33030 is able to maintain high efficiency throughout the entire load range while providing ultra-fast load transient response. The following sections provide additional device application information. Input Capacitor A 2.2F ceramic capacitor or greater should be placed close to the VIN pin and PGND pin for bypassing. A TDK C1608X5R0J475K, size 0603, 4.7F ceramic capacitor is recommended based upon performance, size and cost. A X5R or X7R temperature rating is recommended for the input capacitor. Y5V temperature rating capacitors, aside from losing most of their capacitance over temperature, can also become resistive at high frequencies. This reduces their ability to filter out highfrequency noise. Output Capacitor The MIC33030 was designed for use with a 2.2F or greater ceramic output capacitor. Increasing the output capacitance will lower output ripple and improve load transient response but could increase solution size or cost. A low equivalent series resistance (ESR) ceramic output capacitor such as the TDK C1608X5R0J475K, size 0603, 4.7F ceramic capacitor is recommended based upon performance, size and cost. Both the X7R or X5R temperature rating capacitors are recommended. The Y5V and Z5U temperature rating capacitors are not recommended due to their wide variation in capacitance over temperature and increased resistance at high frequencies. Compensation The MIC33030 is designed to be stable with a minimum of 2.2F ceramic (X5R) output capacitor. Duty Cycle The typical maximum duty cycle of the MIC33030 is 90%. Efficiency Considerations Efficiency is defined as the amount of useful output power, divided by the amount of power supplied.
V xI Efficiency % = OUT OUT V xI IN IN x 100
Efficiency vs. Load (VOUT = 2.5V)
90.0% 80.0% 70.0% VIN = 3.6V
EFFICIENCY (%)
60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 1 10 100 1000
LOAD CURRENT (mA)
Figure 2. Efficiency under Load
Figure 2 shows an efficiency curve. From no load to 100mA, efficiency losses are dominated by quiescent current losses, gate drive and transition losses. By using the HyperLight LoadTM mode, the MIC33030 is able to maintain high efficiency at low output currents. Over 100mA, efficiency loss is dominated by MOSFET RDSON and inductor losses. Higher input supply voltages will increase the Gate-to-Source threshold on the internal MOSFETs, thereby reducing the internal RDSON. This improves efficiency by reducing DC losses in the device. All but the inductor losses are inherent to the device. In which case, inductor selection becomes increasingly critical in efficiency calculations. As the inductors are reduced in size, the DC resistance (DCR) can become quite significant.
February 2011
11
M9999-020311-C
Micrel Inc. The DCR losses can be calculated as follows: PDCR = IOUT2 x DCR From that, the loss in efficiency due to inductor resistance can be calculated as follows:
VOUT x IOUT Efficiency Loss = 1 - V OUT x IOUT + PDCR x 100
MIC33030
Efficiency loss due to DCR is minimal at light loads and gains significance as the load is increased. Inductor selection becomes a trade-off between efficiency and size in this case. The effect of MOSFET voltage drops and DCR losses in conjunction with the maximum duty cycle combine to limit maximum output voltage for a given input voltage. The following graph shows this relationship based on the typical resistive losses in the MIC33030:
HyperLight LoadTM Mode MIC33030 uses a minimum on and off time proprietary control loop (patented by Micrel). When the output voltage falls below the regulation threshold, the error comparator begins a switching cycle that turns the PMOS on and keeps it on for the duration of the minimum-on-time. This increases the output voltage. If the output voltage is over the regulation threshold, then the error comparator turns the PMOS off for a minimumoff-time until the output drops below the threshold. The NMOS acts as an ideal rectifier that conducts when the PMOS is off. Using a NMOS switch instead of a diode allows for lower voltage drop across the switching device when it is on. The asynchronous switching combination between the PMOS and the NMOS allows the control loop to work in discontinuous mode for light load operations. In discontinuous mode, the MIC33030 works in pulse frequency modulation (PFM) to regulate the output. As the output current increases, the off-time decreases, thus provides more energy to the output. This switching scheme improves the efficiency of MIC33030 during light load currents by only switching when it is needed. As the load current increases, the MIC33030 goes into continuous conduction mode (CCM) and switches at a frequency centered at 8MHz. The equation to calculate the load when the MIC33030 goes into continuous conduction mode may be approximated by the following formula:
(V - VOUT ) x D I LOAD > IN 2L x f As shown in the above equation, the load at which MIC33030 transitions from HyperLight LoadTM mode to PWM mode is a function of the input voltage (VIN), output voltage (VOUT), duty cycle (D), inductance (L) and frequency (f). Since the inductance of MIC33030 is 0.36H, the device will enter HyperLight LoadTM mode or PWM mode at approximately 150mA.
February 2011
12
M9999-020311-C
Micrel Inc.
MIC33030
Power Dissipation Considerations As with all power devices, the ultimate current rating of the output is limited by the thermal properties of the package and the PCB it is mounted on. There is a simple, ohms law type relationship between thermal resistance, power dissipation and temperature which are analogous to an electrical circuit:
Since effectively all of the power loss in the converter is dissipated within the MIC33030 package, PDISS can be calculated thus:
1 PDISS = POUT ( - 1)
Where = Efficiency taken from efficiency curves RJC and RJA are found in the operating ratings section of the datasheet.
Example: A MIC33030 is intended to drive a 300mA load at 1.8V and is placed on a printed circuit board which has a ground plane area of at least 25mm square. The Voltage source is a Li-ion battery with a lower operating threshold of 3V and the ambient temperature of the assembly can be up to 50C. Summary of variables: IOUT = 0.3A VOUT = 1.8V VIN = 3V to 4.2V TAMB = 50C
From this simple circuit we can calculate Vx if we know Isource, Vz and the resistor values, Rxy and Ryz using the equation:
Vx = Isource (Rxy + Ryz) + Vz
Thermal circuits can be considered using these same rules and can be drawn similarly replacing current sources with Power dissipation (in Watts), Resistance with Thermal Resistance (in C/W) and Voltage sources with temperature (in C):
RJA = 76C/W from Datasheet
@ 300mA = 75% (worst case with VIN=4.2V from the
Typical Characteristics Efficiency vs. Load graphs)
PDISS = 1.8 0.3 ( 1 - 1) = 0.18W 0.75
The worst case switch and inductor resistance will increase at higher temperatures, so a margin of 20% can be added to account for this: PDISS = 0.18 x 1.2 = .216W Now replacing the variables in the equation for Vx, we can find the junction temperature (TJ) from power dissipation, ambient temperature and the known thermal resistance of the PCB (RCA) and the package (RJC):
TJ = PDISS (R JC + R CA ) + TAMB
Therefore: TJ = 0.216W. (76 C/W) + 50C TJ = 66C This is well below the maximum 125C.
As can be seen in the diagram, total thermal resistance RJA = RJC + RCA. Hence this can also be written:
TJ = PDISS (R JA ) + TAMB
February 2011
13
M9999-020311-C
Micrel Inc.
MIC33030
MIC33030 Typical Application Circuit (Fixed)
Bill of Materials
Item C1, C2 R1 U1
Notes: 1. TDK: www.tdk.com. 2. Vishay: www.vishay.com. 3. Micrel, Inc.: www.micrel.com.
Part Number C1608X5R0J475K CRCW06031002FKEA MIC33030-xYHJ
Manufacturer TDK(1) Vishay
(2)
Description 4.7F Ceramic Capacitor, 6.3V, X5R, Size 0603 Resistor, 10k, Size 0603 8MHz 400mA Integrated Inductor Buck Regulator with HyperLight LoadTM
Qty. 2 1 1
Micrel, Inc.(3)
February 2011
14
M9999-020311-C
Micrel Inc.
MIC33030
MIC33030 Typical Application Circuit (Adjustable 1.8V)
Bill of Materials
Item C1, C2 R1 R2 R3 U1
Notes: 1. TDK: www.tdk.com. 2. Vishay: www.vishay.com. 3. Micrel, Inc.: www.micrel.com.
Part Number C1608X5R0J475K CRCW06031002FT1 CRCW06033013FT1 CRCW06031583FT1 MIC33030-AYHJ
Manufacturer TDK(1) Vishay Vishay Vishay
(2) (2) (2)
Description 4.7F Ceramic Capacitor, 6.3V, X5R, Size 0603 10k , 1%, Size 0603 301k, 1%, Size 0603 158k, 1%, Size 0603 8MHz 400mA Integrated Inductor Buck Regulator with HyperLight LoadTM
Qty. 2 1 1 1 1
Micrel, Inc.(3)
February 2011
15
M9999-020311-C
Micrel Inc.
MIC33030
PCB Layout Recommendations
Fixed Top Layer
Fixed Bottom Layer
February 2011
16
M9999-020311-C
Micrel Inc.
MIC33030
Package Information
10-Pin (2.5mm x 2.0mm) MLF(R) (HJ)
February 2011
17
M9999-020311-C
Micrel Inc.
MIC33030
Recommended Landing Pattern
10-Pin 2.5mm x 2mm MLF(R) All dimensions in mm. Tolerance /- 0.05mm unless noted otherwise. The red circle indicates a Thermal Via. The Size should be .300-.350 mm in diameter and it should be connected to GND plane for maximum thermal performance. Magenta colored pads: Indicate different potential; DO NOT connect to GND plane.
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel's terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2010 Micrel, Incorporated.
February 2011
18
M9999-020311-C

▲Up To Search▲

Price & Availability of MIC33030-4YHJ

	To Download MIC33030-4YHJ Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .