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ADP1173 Datasheet(PDF) 12 Page - Analog Devices

Part # ADP1173
Description  Micropower DC-DC Converter
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1173 Datasheet(HTML) 12 Page - Analog Devices

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ADP1173
–12–
REV. 0
Typical Circuit Applications
ILIM
VIN SW1
ADP1173
L1*
68µH
1N4148
0.1µF
118k
Ω
1%
2.21M
Ω
1%
R1
100
Ω
FB
SW2
GND
4
5
1
2
3
8
2 x 1.5V
CELLS
4.7µF
1N5818
1N5818
220k
Ω
22µF
*L1 = GOWANDA GA10-682K
COILTRONICS CTX68-4
FOR 5V INPUT CHANGE R1 TO 47
Ω
CONVERTER WILL DELIVER –22V AT 40mA
–22V OUTPUT
7mA AT 2.0V INPUT
70% EFFICIENCY
Figure 24. 3 V–22 V LCD Bias Generator
ILIM
VIN
SW1
ADP1173-5
L1*
82µH
SENSE
SW2
GND
4
5
1
2
3
8
2 x 1.5V
CELLS
1N5818
100µF
+
5V OUTPUT
150mA AT 3V INPUT
60mA AT 2V INPUT
*L1 = GOWANDA GA10-822K
Figure 25. 3 V to 5 V Step-Up Converter
ILIM
VIN
SW1
ADP1173-5
L1*
100µH
100
Ω
SENSE
SW2
GND
4
5
1
2
3
8
*L1 = GOWANDA GA10-103K
COILTRONICS CTX100-1
–5V OUTPUT
75mA
+
22µF
+VIN
5V INPUT
1N5818
+
100µF
Figure 26. +5 V to –5 V Converter
ILIM
VIN
SW1
ADP1173-5
L1*
47µH
100
Ω
SENSE
SW2
GND
4
5
1
2
3
8
*L1 = GOWANDA GA10-472K
COILTRONICS CTX50-1
FOR HIGHER OUTPUT CURRENTS SEE ADP1073 DATASHEET
5V OUTPUT
150mA AT 9V INPUT
50mA AT 6.5V INPUT
1N5818
+
100µF
9V
BATTERY
Figure 27. 9 V to 5 V Converter
ILIM
VIN
SW1
ADP1173-5
L1*
220µH
100
Ω
SENSE
SW2
GND
4
5
1
2
3
8
*L1 = GOWANDA GA10-223K
5V OUTPUT
300mA
1N5818
+
100µF
+VIN
12V-28V
Figure 28. +20 V to 5 V Step-Down Converter



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