ADP1173 Analog Devices, ADP1173 Datasheet - Page 14

• Manufacturer Part Number: ADP1173
• Description: Micropower DC-DC Converter
• Manufacturer: Analog Devices

ADP1173
7V-24V
7V-24V
V
Figure 33. High Power, Low Quiescent Current Step-Down Converter
IN
V
IN
Figure 32. Voltage Controlled Positive-to-Negative Converter
GND
I
LIM
1
5
ADP1173
0.22
OPERATE STANDBY
GND
I
LIM
1
5
SW2
0.22
ADP1173
V
4
2
IN
1N5818
SW2
SW1
V
FB
4
2
IN
1N5818
SW1
3
8
FB
100
1/2W
18V
1W
3
8
100
1/2W
18V
1W
2k
V
IN
1N4148
2k
OP196
2N3904
1N4148
–14–
200k
*L1 = GOWANDA GT10-100
EFFICIENCY
STANDBY I
2N3904
40.2k
*L1 = GOWANDA GT10-100
EFFICIENCY
STANDBY I
MTM20P08
MTM20P08
51
39k
Q
Q
51
80% FOR 10mA
150µA
121k
80% FOR 10mA
150µA
1N5820
25µH, 2A
L1*
25µH, 2A
1N5820
L1*
+
+
I
LOAD
I
470µF
LOAD
470µF
500mA
500mA
–V
V
C
OUT
(0V TO +5V)
5V
500mA
= –5.13*V
C
REV. 0