st763a STMicroelectronics, st763a Datasheet - Page 3

• Manufacturer Part Number: st763a
• Description: 3.3v Step Down Current Mode Pwm Dc-dc Converters
• Manufacturer: STMicroelectronics

CONNECTION DIAGRAM (top view)
PIN DESCRIPTION
Pin N°
1
2
3
4
5
6
7
8
Symbol
SHDN
GND
OUT
REF
V
CC
SS
LX
CC
Shutdown control (active low): If connected to GND the IC is in shutdown.
Connect to V
Reference Output Voltage:(1.25V): Bypass to GND with 47nF capacitor
Soft Start: a capacitor between SS and GND provides soft-start and short-circuit
protections.
Compensation Capacitor Input: externally compensates the outer (voltage)
feedback loop. Connect to OUT with 330pF capacitor
Output Voltage Sense Input: provides regulation of feedback sensing. Connect to
3.3V output.
Ground
Switch Output. Drain of internal P-Channel Power MOSFET
Supply Voltage Input. Bypass to GND with 1 F ceramic capacitance and large
value electrolytic capacitor in parallel. The 1 F capacitor must be as close as
possible to the GND and V
CC
for normal operation (ON MODE)
CC
pins
Name and Function
ST763A SERIES
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