amc7660 ADDtek Corp, amc7660 Datasheet - Page 8

• Manufacturer Part Number: amc7660
• Description: Converter Control Circuit
• Manufacturer: ADDtek Corp

Note: For step-up, step-down or voltage inverting applications requiring peak current greater than 1.5A, external boost current circuitry by NPN or
Copyright © 2006 ADDtek Corp.
PNP transistors can be used.
1000uF
Co
-12V/100mA
V
OUT
D1
88uH
8
1
2
OC1
OC2
Q1
Figure 3 – Voltage Inverting Converters
100
Q2
3
7
1.5nF
I sense
C
T
Q
0.24
Rsc
Oscillator
8
S
R
6
1.25V
R2
953
5
4
R1
8.2K
4.5V to 6.0V
DD057_C -- JUNE 2006
AMC7660
100uF
V
IN