RAA207703GBM/7704GBM/7705GBM

R07DS0892EJ0100 Rev.1.00

Page 3 of 23

Aug 02, 2013

Pin Description

Pin Name

Pin No.

Description

Remarks

V5_OUT

1A

Controller voltage

Controller supply (5 V regulator output)

SGND

2A

Controller analog GND

Should be connected to PGND on PCB pattern

FB

3A

Feedback voltage input pin

LDO_EN#

4A

Internal 5 V LDO enable pin

AVIN

5A

Analog input voltage

Should be connected to VIN on PCB pattern

BOOT

1B

Bootstrap voltage pin

To be supplied +5 V through integrated SBD

SET

2B

Constant on time program pin

Tie resistor between SW and SET pin

PGOOD

3B

Power good indicator pin

Pull low when No Good (open drain output)

SS

4B

Soft start period program pin

Tie capacitor between SS and SGND

ON/OFF

5B

Operation enable pin

Operation stop when "L" signal asserted

VIN

—

Input voltage

SW

—

Switching node

PGND

—

Power GND

Should be connected to SGND on PCB pattern

Note:

Pin assign of 1A-5A & 1B-5B is common through RAA207703GBM, RAA207704GBM and RAA207705GBM.