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

TPS65022

SLVS667B – JULY 2006 – REVISED JANUARY 2016

TPS65022 Power Management IC for Li-Ion Powered Systems

All three step-down converters enter a low-power

1 Features

mode at light load for maximum efficiency across the

1

•

1.2-A, 97% Efficient Step-Down Converter for

widest

possible

range

of

load

currents.

The

System Voltage (VDCDC1)

TPS65022 also integrates two general-purpose 200-

•

1-A, Up to 95% Efficient Step-Down Converter for

mA LDO voltage regulators, which are enabled with

an external input pin. Each LDO operates with an

Memory Voltage (VDCDC2)

input voltage range between 1.5 V and 6.5 V,

•

900-mA, 90% Efficient Step-Down Converter for

allowing them to be supplied from one of the step-

Processor Core (VDCDC3)

down converters or directly from the battery.

•

30-mA LDO and Switch for Real-Time Clock

The default output voltage of the LDOs can be

(VRTC)

digitally set to 4 different voltage combinations using

•

2 × 200 mA General-Purpose LDO

the DEFLDO1 and DEFLDO2 pins.

•

Dynamic Voltage Management for Processor Core

The serial interface can be used for dynamic voltage

•

Preselectable LDO Voltage Using Two Digital

scaling, masking interrupts, or for disabling, enabling,

Input Pins

and setting the LDO output voltages. The interface is

•

Externally Adjustable Reset Delay Time

compatible

with

the

Fast/Standard

mode

specification, allowing transfers at up to 400 kHz. The

•

Battery Backup Functionality

TPS65022 is available in a 40-pin (RHA) VQFN

•

Separate Enable Pins for Inductive Converters

package, and operates over a free-air temperature of

•

–40°C to 85°C.

•

85-

μA Quiescent Current

Device Information(1)

•

Low Ripple PFM Mode

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Thermal Shutdown Protection

TPS65022

VQFN (40)

6.00 mm × 6.00 mm

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

2 Applications

the end of the data sheet.

•

PDA

Simplified Schematic

•

Cellular and Smart Phones

•

Internet Audio Players

•

Digital Still Cameras

•

Digital Radio Players

•

Split Supply TMS320™ DSP Family and

μP

Solutions:

OMAP™1610, OMAP1710, OMAP330, XScale

Bulverde, Samsung ARM-Based Processors, and

so forth

•

3 Description

The TPS65022 is an integrated Power Management

IC for applications powered by one Li-Ion or Li-

Polymer cell, and which require multiple power rails.

The TPS65022 provides three highly efficient, step-

down converters targeted at providing the core

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

processor based system.

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.