VReg 2

VReg 1

VReg 3

TPS 43340

LReg 1

TPS43340-Q1

www.ti.com

SLVSB16B – NOVEMBER 2011 – REVISED APRIL 2012

Check for Samples: TPS43340-Q1

1

FEATURES

2

•

Input Voltage Range: 4 V to 40 V, Transients

•

Short Circuit, Over Current, and Thermal

up to 60 V

Protection on Buck Regulator Gate Drive,

Buck Reg Converter, and Linear Regulator

•

Dual Output Synchronous Buck Controller

Output

–

Peak Gate Drive Current 0.6 A

•

Internal Thermal Overload Protection

–

Separate Enable Inputs (EN1, EN2)

•

Thermally Enhanced PowerPAD™ Package

–

Automatic Low-Power Mode Operation

–

48-Pin HTQFP (PHP)

–

Low Current Consumption

–

30 µA (Typ) With Single Output

APPLICATIONS

Operation in Low Power Mode

•

Infotainment

–

35 µA (Typ) With Dual Output Operation

•

Navigation

in Low Power Mode

•

TFT Cluster Display

•

•

Automotive ECU

•

Single Synchronous Buck Regulator Converter

•

Advanced Driver Information Systems

BUCK3

•

Multi Rail DC Power Distribution Systems

–

Max Output Current 2 A

–

Enable Input EN3

Simplified Schematic

•

Linear Regulator LREG1

–

Enable Input EN4

•

Internal Oscillator, Programmable via External

Resistor, 150 kHz to 600 kHz for Switching

•

Integrated PLL, External Synchronization

Frequency: 150 kHz to 600 kHz

•

Switch Mode Regulators Operate with 180°

Phase-Shift

•

Soft Start Input for Switchmode Supplies (SS1,

SS2, SS3)

•

Reset Output for All Output Rails

•

Reset Delay, Programmable with Capacitor

•

Supply Under Voltage/Over Voltage Detection

and Shutdown

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2011–2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.