RT9737

Copyright © 2014 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation

DS9737-00

February

2014

www.richtek.com

1

5V Capable Low-Voltage DPDT Analog Switch

General Description

RT9737 is a 5V high quality low-voltage double-pole

double-throw (DPDT) analog switch. RT9737 supply

voltage is designed to operate from 2.5V to 5.5V.

Supply voltage can be smaller than input voltage while

keeping 5V input range. With 70m

 turn-on resistance,

power-loss and signal distortion can be minimized.

RT9737 is ideal for switching audio signal from outputs

of audio amplifiers. The break-before-make feature

prevents signal distortion during the transferring of a

signal from one path to another for audio applications.

Ordering Information

RT9737

Package Type

WSC : WL-CSP-9B 1.24x1.24 (BSC)

Note :

Richtek products are :



RoHS compliant and compatible with the current

requirements of IPC/JEDEC J-STD-020.



Suitable for use in SnPb or Pb-free soldering processes

Marking Information

1PW

1P : Product Code

W : Date Code

Features



Maximum Input Signal Range 0 to 5.5V



70m

 Turn-On Resistance



2.5V to 5.5V Supply Voltage



40

A Quiescent Current



Break-Before-Make Between Channel Transition



Available in 9Ball WL-CSP Package

Applications



Smartphone



Tablet

Pin Configurations

(TOP VIEW)

INA1

INA2

INB1

OUTB

INB2

OUTA

GND

A1

A2

A3

B3

B1

C1

C2

C3

B2

WL-CSP-9B 1.24x1.24 (BSC)

Simplified Application Circuit

SEL

OUTA

OUTB

VDDEN

INA1

INB1

INA2

INB2

GND

Audio

Amplifier 1

Audio

Amplifier 2

Audio

Connector

SEL

RT9737