AP3039M-G1 查看數據表（PDF） - BCD Semiconductor

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AP3039M-G1

BOOST CONTROLLER

BCD Semiconductor 

BOOST CONTROLLER

Pin Description

Data Sheet

AP3039

Pin Number

Pin Name

16-pin 14-pin

1

3

EN Enable pin

Function

2

4

VIN Input supply pin, must be locally bypassed

3, 12

NC No connection (for QFN-3x3-16 package only)

4

5

VCC

6V linear regulator output pin. VCC is used to bias the gate driver for the external

MOSFET. If VIN is less than 8.5V, the VCC is equal to VIN minus drop voltage across

bypass switch. If VIN is less than 6V, connect VCC to VIN. This pin should be bypassed to

GND (recommend to connect with AGND pin) with a ceramic capacitor

5

6

OUT

Connect this pin to the gate of external MOSFET, the gate driver has 0.6A peak current

capability

6

7

PGND Power ground

7

8

RT An external resistor connected from this pin to GND to set the operating frequency

8

9

CS Sense switch current pin, which is used for current mode control and for current limit

9

10

AGND Reference ground

10

11

SHDN This pin can be connected to current matched chip and receives error signal used to shut

down the system

11

12

FB Voltage Feedback Pin. The reference voltage is 500mV

13

13

COMP Compensation Pin. This pin is the output of the internal Error Amplifier

14

14

SS

An external soft start time capacitor is connected from this pin to ground and is charged by

internal 12µA current source to control regulator soft start time

15

1

UVLO Two resistors connected from this pin to ground and the VIN pin respectively to set start up

and shutdown level

16

2

OV Over output voltage protection pin

EP

Exposed backside pad. Solder to the circuit board ground plane with sufficient copper

connection to ensure low thermal resistance (for QFN-3x3-16 package only)

Dec. 2009 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

3

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