10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

1000

IO −

−

LoadCurrent

mA

0

V =3.6V

ForcedPWMOperation

I

V =4.2V

PFM/PWMOperation

I

V =3.6V

PFM/PWMOperation

I

V =2.7V

PFM/PWMOperation

I

VO =1.2V

FB

C2

4.7 F

m

L1

0.47 H

m

VIN

TPS62650

2.3V..5.5V

SW

GND

EN

VSEL

SDA

SCL

upto3.4Mbips

VO

C1

VI

VO =Roof

VO =Floor

I2C Bus

4.7 F

m

CSP-9

TPS62650-Q1

www.ti.com

SLVSB62B – MARCH 2012 – REVISED FEBRUARY 2013

800-mA, 6-MHz High-Efficiency Step-Down Converter

With I2C™ Compatible Interface in Chip-Scale Packaging

Check for Samples: TPS62650-Q1

1

FEATURES

Solution

•

Total Solution Size <13 mm2

23

•

Qualified for Automotive Applications

•

Available in a 9-Pin NanoFree™ (CSP) Package

•

AEC-Q100 Qualified With the Following

Results:

APPLICATIONS

–

Device Temperature Grade 2: –40°C to

+105°C Ambient Operating Temperature

•

SmartReflex™ Compliant Power Supply

Range

•

OMAP™ Application Processor Core Supply

–

Device HBM ESD Classification Level H2

•

Cell Phones, Smart-Phones

–

Device CDM ESD Classification Level C3B

•

Micro DC-DC Converter Modules

•

86% Efficiency at 6-MHz Operation

DESCRIPTION

The

TPS62650-Q1

device

is

a

high-frequency

•

38-

μA Quiescent Current

synchronous step-down dc-dc converter optimized for

•

Wide VIN Range From 2.3 V to 5.5 V

battery-powered portable applications. Intended for

•

6-MHz Regulated Frequency Operation

low-power applications, the TPS62650-Q1 supports

up to 800-mA load current and allows the use of

•

Best-in-Class Load and Line Transient

small, low-cost inductors and capacitors.

•

±2% PWM DC Voltage Accuracy

The device is ideal for mobile phones and similar

•

Automatic PFM/PWM Mode Switching

portable applications powered by a single-cell Li-Ion

•

Low-Ripple Light-Load PFM

battery. With an output voltage range adjustable via

•

I2C Compatible Interface up to 3.4 Mbps

an I2C interface down to 0.75 V, the device supports

low-voltage core power supplies for DSPs and

•

Pin-Selectable Output Voltage (VSEL)

processors

in

smart-phones

and

handheld

•

Internal Soft-Start, <150-

μs Start-Up Time

computers.

•

Current Overload and Thermal Shutdown

The TPS62650-Q1 operates at a regulated 6-MHz

Protection

switching

frequency

and

enters

the

efficiency-

•

Three Surface-Mount External Components

optimized power-save mode operation at light load

Required (One MLCC Inductor, Two Ceramic

currents to maintain high efficiency over the entire

Capacitors)

load current range. In the shutdown mode, the

•

Complete Sub 1-mm Component Profile

current consumption is reduced to less than 3.5

μA.

Figure 1. Typical Application

Figure 2. Efficiency vs Load Control

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

NanoFree, SmartReflex, OMAP are trademarks of Texas Instruments.

3

I2C is a trademark of Philips Semiconductors.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012–2013, 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.