gm34063 Gamma Microelectronics, gm34063 Datasheet - Page 12

• Manufacturer Part Number: gm34063
• Description: Gm34063 1.5a Dc-to-dc Converter Control Circuit
• Manufacturer: Gamma Microelectronics

12
V
IN
MICROELECTRONICS
V
R
IN
SC
A
R
SC
6
5
8
7
A
6
5
8
7
I
pk
Comparator
Oscillator
I
pk
+
-
Comparator
Oscillator
Figure 9. Dual Output Voltage
Figure 10. Higher Output Power, Higher Input Voltage
+
C
-
T
C
T
R
S
Reference
Q
Regulator
R
S
1.25V
Reference
Q
Regulator
Q2
1.25V
1.5A DC-to-DC CONVERTER CONTROL CIRCUIT
Q2
Q1
Power Management
Q1
1
3
4
2
1
3
2
4
GM34063
+
+
+
+
Isolated form input
V
-V
OUT
OUT
-12V
+12V
GND