40

50

60

70

80

90

100

0.0

0.2

0.4

0.6

0.8

1.0

VIN=5V

VIN=12V

VIN=17V

Output Current (A)

VOUT=3.3V

fsw=1.25MHz

G001

22mF

1.8V / 1A

10mF

2.2mH

(3 .. 17)V

3.3nF

TPS62151

PVIN

AVIN

EN

SS/TR

DEF

FSW

SW

VOS

PG

FB

AGND

PGND

100k

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Design

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.

TPS62150, TPS62150A, TPS62151, TPS62152, TPS62153

SLVSAL5D – NOVEMBER 2011 – REVISED SEPTEMBER 2016

TPS6215x 3-V to 17-V, 1-A Step-Down Converter in 3-mm × 3-mm QFN Package

1

1 Features

1

•

DCS-Control™ Topology

•

Input Voltage Range: 3 V to 17 V

•

Up to 1-A Output Current

•

Adjustable Output Voltage From 0.9 V to 6 V

•

Pin-Selectable Output Voltage (nominal, + 5%)

•

Programmable Soft Start and Tracking

•

Seamless Power-Save Mode Transition

•

Quiescent Current of 17 µA (typ.)

•

Selectable Operating Frequency

•

Power-Good Output

•

100% Duty-Cycle Mode

•

Short-Circuit Protection

•

Overtemperature Protection

•

Pin to Pin Compatible with TPS62130 and

TPS62140

•

Available in a 3-mm × 3-mm, VQFN-16 Package

2 Applications

•

Standard 12-V Rail Supplies

•

POL Supply From Single or Multiple Li-Ion Battery

•

Solid-State Disk Drives

•

Embedded Systems

•

LDO Replacement

•

Mobile PCs, Tablets, Modems, Cameras

•

Server, Microserver

•

Data Terminal, Point of Sales (ePOS)

3 Description

The TPS6215x family is an easy-to-use synchronous

step down dc-dc converter optimized for applications

with high power density. A high switching frequency

of typically 2.5 MHz allows the use of small inductors

and provides fast transient response as well as high

output-voltage accuracy by the use of DCS-Control

topology.

With their wide operating input-voltage range of 3 V

to 17 V, the devices are ideally suited for systems

powered from either Li-Ion or other batteries as well

as from 12-V intermediate power rails. The devices

support up to 1-A continuous output current at output

voltages between 0.9 V and 6 V (in 100% duty-cycle

mode). The soft-start pin controls the output-voltage

start-up ramp, which allows operation as either a

standalone power supply or in tracking configurations.

Power sequencing is also possible by configuring the

enable (EN) and open-drain power-good (PG) pins.

In power-save mode, the devices draw quiescent

current of about 17 μA from VIN. Power-save-mode,

entered automatically and seamlessly if the load is

small, maintains high efficiency over the entire load

range. In shutdown mode, the device turns off and

current consumption is less than 2 μA.

The device, available in adjustable- and fixed-output-

voltage versions, comes in a 16-pin VQFN package

measuring 3 × 3 mm (RGT).

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS6215X

VQFN (16)

3.00 mm × 3.00 mm

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

the end of the data sheet.

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Typical Application Schematic

Efficiency vs Output Current

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