ADP1173 Ver la hoja de datos (PDF) - Analog Devices
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ADP1173 Datasheet PDF : 16 Pages
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ADP1173
VIN
7V-24V
0.22Ω
MTM20P08
L1*
25µH, 2A
1N5818
18V
1W
1
2
ILIM
VIN SW1 3
ADP1173
100Ω
1/2W
GND
5
SW2 FB 8
4
2kΩ
2N3904
1N5820
51Ω
+
470µF
1N4148
VIN
200kΩ
OP196
39kΩ
–VOUT = –5.13*VC
VC (0V TO +5V)
*L1 = GOWANDA GT10-100
EFFICIENCY ≥ 80% FOR 10mA ≤ ILOAD ≤ 500mA
STANDBY IQ ≤ 150µA
Figure 32. Voltage Controlled Positive-to-Negative Converter
VIN
7V-24V
0.22Ω
L1*
MTM20P08 25µH, 2A
1N5818
18V
1W
1
2
ILIM
VIN SW1 3
ADP1173
100Ω
1/2W
GND
5
SW2
4
FB 8
2kΩ
2N3904
1N4148
40.2kΩ
1N5820 + 470µF
51Ω
121kΩ
5V
500mA
OPERATE STANDBY
*L1 = GOWANDA GT10-100
EFFICIENCY ≥ 80% FOR 10mA ≤ ILOAD ≤ 500mA
STANDBY IQ ≤ 150µA
Figure 33. High Power, Low Quiescent Current Step-Down Converter
–14–
REV. 0
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