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Circuit Descriptions, Abbreviation List, and Datasheets
IC7605, ST735: Servo Board, -5V Inverting PWM Regulator
SCHEMATIC DIAGRAM
PIN DESCRIPTION
Pin N˚
Symbol
1
SHDN
2
V
REF
3
SS
4
CC
5
V
OUT
6
GND
7
LX
8
V
IN
IC7606, L5970: Servo Board, Step Down Switching
Regulator
PINS FUNCTION
N.
Name
1
OUT
Regulator Output.
2
SYNC
Master/slave synchronization.
3
INH
A logical signal (active high) disables the device. If INH not used the pin must be grounded.
When it is open an internal pull-up disable the device.
4
COMP
E/A output for frequency compensation.
5
FB
Feedback input. Connecting directly to this pin results in an output voltage of 1.23V. An external
resistive divider is required for higher output voltages.
6
V
3.3V V
REF
7
GND
Ground.
8
V
Unregulated DC input voltage.
CC
SHUT-DOWN Control (V
Reference Output Voltage
Soft Start
Compensation Input
Negative Output Voltage
Ground
Switch Output
Positive Supply - Voltage Input
. No cap is requested for stability.
REF
VAD 8031
Name and Function
=ON GND=Shutdown
CC
Description
9.
EN 45
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