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AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
FEATURES
Default +5V Output Voltage. Adjustable Output Voltage with Two Resistors. Power-Saving Shutdown Mode (7A typical). 120KHz Switching Rate. On-Chip Low Battery Detector.
DESCRIPTION
The AIC1630A is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications. Typically six components are required to set up a step up configuration easily achieving efficiency beyond 80%. A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300A quiescent current. The output voltage can be internally set to 5V or externally set to an arbitrary value below breakdown voltage of the power switch. Logiccontrolled shutdown mode is provided for power saving. The low battery detector can be also configured as a linear regulator. 120KHz switching rate reduces the inductor size. Inductors of 25H to 50H inductance are recommended for most applications.
APPLICATIONS
Palmtop & Notebook Computers. Battery Charger Supply. Cellular Telephone. LCD Contrast Supply. Flash Memory Programmer. Battery Backup Supplies. Portable Instruments.
TYPICAL APPLICATION CIRCUIT
+VIN 50H 100 100F R3 L C1 + SD VIN EXT 2SC4672 100F C3 LOAD Q1 1 GND 270 R4 VOUT LBI LBO FB EXT INT R2 R1
+VOUT
D1 1N5819
5nF C2
AIC1630A
Note : VIN 1.8V , VOUT 7V
High Efficiency Step-Up DC/DC Converter
ORDERING INFORMATION
AIC1630A XX PACKAGE TYPE N: PLASTIC DIP S: SMALL OUTLINE TEMPERATURE RANGE C=0C~70C ORDER NUMBER AIC1630ACN (PLASTIC DIP) AIC1630ACS (PLASTIC SO) PIN CONFIGURATION
TOP VIEW SD 1 VIN EXT 2 3 8 VOUT 7 LBI 6 LBO 5 FB
GND 4
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
1
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ................................................................................... 7.0V DC Voltage Applied On All Other Pins ....................................................... 7.0V Operating Temperature Range ......................................................... 0C~70C Storage Temperature Range ...................................................... -65C ~150C
TEST CIRCUIT
Refer to Typical Application Circuit.
ELECTRICAL CHARACTERISTICS
PARAMETER
Input Voltage Default Output Voltage Switch Off Current Shutdown Mode Current Recovery Time from Shutdown Efficiency Line Regulation Load Regulation Oscillator Frequency LBI Pin Trip Point FB Threshold Voltage EXT Pin Driving Capability IL=200mA
(VIN=3.0V, Ta=25C, unless otherwise specified.) MIN.
1.8 4.8 5 105 7
TEST CONDITIONS
TYP.
MAX.
7 5.2 140 15
UNIT
V V A A mS % %VOUT %VOUT
VIN=2.5V, IL=200mA IL=300mA Fig. 1 in Appl. Examples VIN=2.2~3.3V VOUT=5V, IL=100mA IL=10mA~500mA VOUT=5V 90 1.17 0.598 Pin 8=5V, Pin 3= 0.85V Sourcing Sinking VIN=2V
0.4 85 0.6 2.5 120 1.22 0.617 80 50 45 10 10 150 1.27 0.636
KHz V V mA mA nA/Pin nA/Pin
LBO "ON Resistance" Input Pin Bias Current Output Pin Leakage
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
2
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
TYPICAL PERFORMANCE CHARACTERISTICS
Ext Pin Sourcing Capability
85 80 70
90
Ext Pin Sourcing Capability vs Temperature
VOUT=5V
80
VOUT=5V
(mA)
60 50 40
IEXT (mA)
Ta=25C
70
60
IEXT
Ext Pin Voltage=0.85V
50
VOUT=3V
30 20 0.6 0.8 1
40
VOUT=3V
0 10 20 30 40 50 60 70 80
30
EXT Pin Voltage (V)
1.2
1.4
1.6
1.8
2
Temperature (C)
Ext Pin Sinking Capability
85 80 75 70 55 53 51
Ext Pin Sinking Capability vs Temperature
Ta=25C VOUT=5V
Ext Pin Voltge=0.85V VOUT=5V
49
IEXT (mA)
65 60 55 50 45 40 35 0.6 0.8
IEXT (mA)
47 45 43 41 39 37
VOUT=3V
VOUT=3V
1
1.2
1.4
1.6
1.8
2.0
35
0
10
20
30
40
50
60
70
80
EXT Pin Voltage (V)
Temperature(C)
Switch off Supply Current vs Input Voltage
110 105 100
120
Switch Off Supply Current vs Temperature
115
Ta=25C
110
IS (A)
95 90 85 80 75
IS (A)
VIN=3V
105
100
95
90
1.5
2
2.5
3
3.5
4
4.5
5
0
10
20
30
40
50
60
70
80
VIN (V)
Temperature (C)
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
3
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Shutdown Mode Supply Current vs Input Voltage
8.2 9.4
Shutdown Mode Supply Current vs Temperature
8
9
Ta=25C
7.8 8.6
VIN=3V
IS (A)
7.6
IS (A)
1 1.5 2 2.5 3 3.5 4 4.5 5
8.2
7.4
7.8
7.2
7.4
7
7 0 10 20 30 40 50 60 70 80
VIN (V)
Temperature (C)
Oscillator Frequency vs Input Voltage
130 120 123
Oscillator Frequency vs Temperature
122
(KHz)
VIN=3V
110
Ta=25C
100 90 80 70 60 1 1.5 2 2.5 3 3.5 4 4.5 5
Frequency
Frequency (KHz)
121
120
119
118
117 0 10 20 30 40 50 60 70
80
VIN (V)
Temperature (C)
BLOCK DIAGRAM
SD 100mV VIN FB EXT= LOW OSC
+
Shutdow n
VOUT
LBI
1.22V + LBO
EXT
+ 0.628V FB EXT= HIGH
GND
+
-
FB 100mV
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
4
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
PIN DESCRIPTION
PIN 1: SD - The AIC1630A goes in shutdown mode and consumes less than 10 A when SD pin is pulled to ground and it goes in normal operating mode when the SD pin is pulled to a positive voltage above 100mV. - Input supply.
where R2= R1=Resistor connected between FB pin and VOUT pin. Resistor connected between FB pin and ground. VOUT=Output voltage to be set. PIN 6: LBO - Open drain output of the battery low detector, with 45 "ON resistance" at VIN=2V. It is pulled low when the voltage on LBI pin is below 1.22V. PIN 7: LBI - The noninverting input of the battery low detector, of which the inverting input is internally connects to 1.22V voltage reference.
PIN 2: VIN
PIN 3: EXT - Push-pull drive output to drive external power switch. PIN 4: GND - Ground. PIN 5: FB - Output voltage can either be internally set to 5 volt by grounding FB pin, or be externally set to an arbitrary voltage by applying to FB pin the divider voltage of two divider resistors. VOUT voltage is given following equation:
R1 VOUT = -1 R2 0.628
by
the
PIN 8: VOUT- The output voltage feedbacks to the IC through this pin. If output voltage was externally set, the VOUT pin can be tied to any low impedance node with voltage between the external power switch threshold and 7V
APPLICATION EXAMPLES
95
VOUT (+5V)
VIN
100
90 85 80
100F
+
C1 L 1N5819 50H
SD VIN
VOUT LBI LBO FB AIC1630A
Efficiency (% )
R3
V IN= 4.5V V IN= 3V V IN= 3.3V
V IN= 2.2V
75 70 65 60
5nF C2 D1 100F LOAD 2SC4672 Q1
EXT GND
V IN= 2V
+
C3
270 R4
0
100
200
300
400
500
600
700
800
Load Current (mA)
Fig. 1 5V Output Step-Up Converter
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
5
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
VOUT
(+12V) 100
(CONTINUED)
85
VIN
VIN=5V
R3 C1 SD 220F L 47H D2 1N4148 2SC4672 Q1 1K R4 GND FB 10K R2
70 0 30 60 90 120 150 180
VOUT 180K LBI LBO R1
Efficiency (%)
+
VIN=4.5V
80
VIN=3.3V VIN=2.75V
VIN EXT
1N5819 D1 LOAD 100F OS-CON
75
+
C3
VIN=2.25V
210 240 270
AIC1630A
Load Current (mA)
Note :
VIN 2.2V
Fig. 2 12V Output Step-Up Converter for Flash Memory
95
VOUT
(+36V)
VS(+3/5V)
90
V IN = 2 0 V V IN = 1 6 V
1M R1
C1 L 220H
Efficiency (% )
VIN
+ 47F
SD VIN EXT
VOUT LBI LBO FB
85
V IN = 1 2 V V IN = 8 V V IN = 6 V
80
1N5819 D1 LOAD 2SC4672 Q1 + C3 33F 120 R3
GND
75
AIC1630A
17.8K
R2
70 0 10
V IN = 5 V
20 30 40 50
V s= 5 V
60 70
Load Current (mA )
Fig. 3 36V Output Step-Up Converter for Color LCD
88
VIN D1 1N5819 VOUT (-24V) C3 L 150H
VS (+3/5V) C6 5nF
86 84
V IN = 1 5 V V IN = 1 0 V V IN = 2 0 V V IN = 5 V
+
10F
C1
SD VIN
VOUT LBI LBO FB
Ef ficiency (% )
90K
R1
82 80 78 76 74
+ 0.1F C2 47F 2SC4672 Q1
EXT 1.2K R3 C5 5nF GND
C4
+ 47F
1N5819
LOAD
1N5819 D2
D3
AIC1630A
2.4K
R2
72 70 0 5 10 15 20 25 30
V s= 5 V
35 40 45
Load Current (m A )
Fig. 4 -24V Output Inverting Converter for LCD
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
6
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
VIN
150H D1 1N5819 VOUT (-24V) C5 L C3 10F 2SC4672 Q1 VS (+3/5V) + 220F
(CONTINUED)
78 76 74 72
Vs= 3V
V IN= 5V V IN= 4V V IN= 3V
+
C1 150
SD VIN EXT R3 D4 GND
VOUT 90K LBI LBO FB 2.4K
R1
5nF D2
+
10F C2
120 R4
Efficiency (% )
70 68 66 64 62 60 58 56 0 5 10 15 20 25
C4 + 33F
1N5819
LOAD
1N5819 D3
AIC1630A
R2
V IN= 2V
1N4148
Load Current (mA)
Fig. 5 2V Input 20mA Load -24V Output Inverting Converter for LCD
VOUT (+12V)
95
VIN
C3 L D1 1N5819 50H
+
220F
VS (+3/5V) + 10F C1 SD VOUT LBI LBO FB 10K R2 180K R1
90
V IN= 20V
Efficiency (% )
V IN= 16V V IN= 12V V IN= 8V V IN= 6V
85
D2 1N5819
47F C2
2SC4672 Q1
VOUT (-12V)
+
10F C5
+
VIN 120 R4 430 R3 EXT GND
80
47F
+
D3
1N5819
C4
AIC1630A
D4 1N4148
75
V IN= 5V
70 0 10 20 30 40 50
Vs= 5V
60 70
Load Current (mA)
Fig. 6 12V Dual Output Converter for computer for computer Interfacing
SI9430DY MBR360 Q2 V IN + 100F C1 5.1V ZD1 R3 100K 9014 Q1 R4 270 L 50H D1 + C2 220F
91
V OUT (+5V)
89 87
VIN= 12V V IN= 8V
+ 10F C3 680P R5 36K Quicient Current = 300A C4 EXT GND LBO FB R2 6.4K SD VIN MPSA13 VOUT LBI R1 45K L O A D
Efficiency (% )
85 83 81 79 77 75 0
VIN= 16V VIN= 20V
AIC1630A
1
1.5
2
2.2
2.5
3
3.5
4
Load Current (A)
Fig. 7 5V Output Step-Down Converter -1
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
7
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
SI9430DY MBR360 VIN L
(CONTINUED)
VOUT (+5V) C2
+
R3 100K Q1 5.1V 9014 ZD1
100F C1
Q3
1N4148 D2
9014
270 R4
Q2
50H D1 220F
+
90
V IN= 8V
Efficiency (% )
+
10F C4 C3
V IN= 12V
SD VIN
VOUT LBI LBO FB R2 6.4K R1 45K L O A D
85
V IN= 16V
MPSA13
680P R5 36K Quicient Current = 300A
EXT GND
V IN= 20V
80 0
AIC1630A
1
Load Current (A)
2
3
4
5
Fig. 8 5V Output Step-Down Converter -2
2A FUSE 50H L1
1N5819 D2 240K
BATTERY PACK R3 + C2
220 R10 R9 + 100F C4
+VIN (VIN100k
VBAT
IRFD020 Q1
VIN EXT GND
LBI
1n4148
LBO FB
D3
4.7F
+ ZD1 4.7V 100F C1
AIC1630A
12K R2 R5 33K C3 10nF RIF
R11 120K 0.82 22K C3 R7
+
GND TIMER MODE
VDD VOUT LED
AIC1761/1766
100K R6 1N4148 D3
Note:
VIN 2.2V Charging current =0.8A, Auto-Cut-Off at 0.75/0.25% -V point and Fault Conditions. (RIF sets the Charging Current) VIN must be lower than VBAT. Short Circuit Condition is protected with a 2A Fuse.
Fig. 9 Step-Up Rechargeable Battery Charger
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
Trickle
VBT
VREF
Charging
SD
VOUT
R4
33K
220F
150
R1
0.1F C5
1.5K R12
1.5K R13
8
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES (CONTINUED)
IN5819 D2 240K R4 C2 R5 TIP32C Q3 47K R3 Q2 12K + BATTERY PACK 220 R12 100F C4 120K + C3 4.7F 120K R15 + +VIN (+VIN can be either higher or lower than the battery voltage) 0.1F C5
VBT GND MODE VREF VDD LED
50H
VBAT
SD VIN EXT
VOUT LBI LBO FB
220F
150 R1
100K R10
R6 330
RIT 75K
1.5K R13 Charging 8 max.
1.5K R14
L1
IRFD020 Q1
100F
C1
AIC1630A
2N3904 Q4
TIMER VOUT
4.7V ZD1
AIC1761/1766
Note:
= 0.8A @VINVBAT Trickle charge Current = 30mA. (RIF sets Fast Charge Current, RIT sets Trickle Charge Current) Typical Efficiency = 75%. With Short Circuit Protection.
Fast Charge Current
Fig. 10
Step-Up/Down Rechargeable Battery Charger
PHYSICAL DIMENSIONS
8 LEAD PLASTIC DIP
9.30.3
8 LEAD PLASTIC SO
4.800.20
6.20.2
3.80.2
8.00.5
3.30.1 0.60.3 3.20.3 2.50.1 10max 8.51.0 0.50.1 2.540.10
1.270.10 1.50.2 0.2 0.1 0.250.10 0.015X45
0.450.10
UNIT: mm
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
6.00.2
Trickle
+
GND
2N3904 R2 750
2N2222 Q5
RIF 0.82
22K R9
R11
9

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