AN8022L, AN8022SB

Voltage Regulators

2

s Pin Descriptions

• AN8022L

Pin No.

Symbol

Description

1

SS

Soft start pin

2

RT

Resistor connection pin that determines charge and discharge current of triangular wave

3

CT

Triangular wave generating capacitor connection pin

4

CLM(

−)

Pulse-by-pulse overcurrent protection input pin

5

GND

Grounding pin

Power MOSFET direct drive pin

Power supply voltage pin

8

TIM/OVP

Pin for overvoltage protection and timer latch (joint use)

9

IFB

Current feedback signal input pin from power-supply-output photocoupler

Pin No. Symbol

Description

1

PGND

Grounding pin

Power MOSFET direct drive pin

Power supply voltage pin

Power supply voltage pin

5

TIM/OVP

Pin for overvoltage protection and

timer latch combined use

6

IFB

Power supply output photocoupler

current feedback signal input pin

7

N.C.

N.C.

8

N.C.

N.C.

9

N.C.

N.C.

Pin No. Symbol

Description

10

N.C.

N.C.

11

SS

Soft start pin

12

RT

Charge and discharge current of

triangular wave determining resistance

connection pin

13

CT

Triangular wave generating capacitance

connection pin

14

N.C.

N.C.

15

CLM(

−) Pulse-by-pulse overcurrent protection

input pin

16

SGND

Grounding pin

• AN8022SB

s Block Diagram

Start/Stop

Drive

PWM

Reset

4.1 V

7

(2)

6

CLM(

−)

(15)

4

GND

(1)PGND

5

(16)SGND

TIM/OVP

(5)

8

OVP

CLM

OSC

OCL

FB

CT

(13)

3

RT

(12)

2

Note) The number in ( ) shows the pin number for the AN8022SB.