L4976 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

L4976

1A step down switching regulator

STMicroelectronics 

1 2 3 4 5 6 7 8 9 10 Next

L4976

1

Block diagram

Figure 2. Block diagram

THERMAL

SHUTDOWN

VOLTAGES

MONITOR

2

VREF

VREF

7

COMP

8

E/A

FB

3.3V

INTERNAL

5.1V REFERENCE

PWM

3.3V

R

Q

S

OSCILLATOR

3

OSC

1

GND

Block diagram

VCC

5

CBOOT

CHARGE

DRIVE

6

BOOT

CBOOT

CHARGE

AT LIGHT

LOADS

4

OUT

3/17

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