System Platform

TPS6502x

DCDC1

DCDC2

DCDC3

LDO1

LDO1

Example SoC

CORE

1.8-V IO

Domain

Memory

3.3-V IO

Domain

Memory

22 µF

22 µF

22 µF

2.2 µH

2.2 µH

2.2 µH

2.2 µF

2.2 µF

2.2 µF

BACKUP

Enables

and

Vout

Select

DCDC1_EN

DCDC2_EN

DCDC3_EN

LDO_EN

DEFDCDC1

DEFDCDC2

DEFDCDC3

+

±

+

±

R1

R2

Monitored

Voltage1

R3

R4

Monitored

Voltage2

RESPWRON

System Reset

PWRFAIL

LOWBATT

RTC AND

VBACKUP

Peripherals

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS65023, TPS65023B

SLVS670K – JUNE 2006 – REVISED DECEMBER 2015

TPS65023x Power Management IC

for Li-Ion and Li-Polymer Powered Systems

1 Features

3 Description

The TPS65023x device is an integrated power

1

•

1.7-A, 90% Efficient Step-Down Converter for

management IC for applications powered by one

Processor Core (VDCDC1)

Li-Ion or Li-Polymer cell, which require multiple power

•

1.2-A, Up to 95% Efficient Step-Down Converter

rails. The TPS65023x provides three highly efficient,

for System Voltage (VDCDC2)

step-down converters targeted at providing the core

•

1.0-A, 92% Efficient Step-Down Converter for

voltage, peripheral, I/O, and memory rails in a

processor-based system. The core converter allows

Memory Voltage (VDCDC3)

for

on-the-fly

voltage

changes

through

serial

•

30-mA LDO and Switch for Real Time Clock

interface, allowing the system to implement dynamic

(VRTC)

power savings. All three step-down converters enter a

•

2 × 200-mA General-Purpose LDO

low-power mode at light load for maximum efficiency

•

Dynamic Voltage Management for Processor Core

across the widest possible range of load currents.

•

Preselectable LDO Voltage Using Two Digital

Device Information(1)

Input Pins

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Externally Adjustable Reset Delay Time

TPS65023

•

Battery Backup Functionality

WQFN (40)

5.00 mm × 5.00 mm

TPS65023B

•

Separate Enable Pins for Inductive Converters

(1) For all available packages, see the orderable addendum at

•

the end of the data sheet.

•

Simplified Schematic

–

TPS65023: 300 ns

–

TPS65023B: 100 ns

•

85-

μA Quiescent Current

•

Low Ripple PFM Mode

•

Thermal Shutdown Protection

•

40-Pin, 5-mm × 5-mm WQFN Package

2 Applications

•

Digital Media Players

•

Internet Audio Players

•

Digital Still Cameras

•

Smart Phones

•

Supply DaVinci™ DSP Family Solutions

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.