TPS82740B

TPS82740 extends

light load efficiency range

down to 10 A output current

m

V

= 3.6V

V

= 3.3V

IN

OUT

Current

DCS-Control

topology

TM

GND

up to 200mA

C

IN

TPS82740

L

2.2 V to 5.5 V

C

OUT

Switched Supply

R = 0.6

ON

ENABLE

DC/DC Converter

VOUT

VSEL3

SW

VIN

CTRL

VSEL1

LOAD

VSEL2

EN

GND

VSEL1

VSEL2

VSEL3

Control for

Switched

Supply Rail

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS82740A, TPS82740B

SLVSCE3A – JUNE 2014 – REVISED JUNE 2014

Applications

This new DCS-Control™ based device extends the

1 Features

light load efficiency range below 10µA load currents.

1

•

360nA Typical Quiescent Current

It supports output currents up to 200mA.

•

Up to 90% Efficiency at 10µA Output Current

The

device

operates

from

rechargeable

Li-Ion

•

Pin Selectable Output Voltages in 100mV Steps

batteries, Li-primary battery chemistries such as Li-

•

Integrated Slew Rate Controlled Load Switch

SOCl2, Li-MnO2 and two or three cell alkaline

batteries. The input voltage range up to 5.5V also

•

Up to 200mA Output Current

allows operation from an USB port and thin-film solar

•

modules.

•

RF Friendly DCS-Control™

The output voltage is user selectable by three voltage

•

Low Output Voltage Ripple

select pins (VSEL), within a range from 1.8V to 2.5V

•

Automatic Transition to No Ripple 100% Mode

(TPS82740A) and 2.6V to 3.3V (TPS82740B) in

100mV steps. The TPS82740 features low output

•

Discharge Function on VOUT and LOAD

voltage ripple and low noise. Once the battery voltage

•

Sub 1.1-mm Profile Solution

comes close to the output voltage (close to 100%

•

duty cycle), the device enters no ripple 100% mode

•

Small 2.3 mm x 2.9 mm MicroSIP™ Package

operation preventing an increase of output voltage

ripple. In this case the device stops switching and the

output is connected to the input voltage.

2 Applications

The integrated slew rate controlled load switch with a

•

typical ON-resistance of 0.6

Ω distributes the selected

•

Wearable Electronics

output voltage to a temporarily used sub-system.

•

Energy Harvesting

3 Description

The TPS82740 is the industry's first step down

Device Information(1)

converter module featuring typically 360nA quiescent

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS82740A

µSIP

2.30 mm × 2.90 mm

DC/DC step-down power solution intended for ultra

low-power applications. The module includes the

TPS82740B

µSIP

2.30 mm × 2.90 mm

switching

regulator,

inductor

and

input/output

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

capacitors. The integration of all required passive

the end of the datasheet.

components enables a tiny solution size of only

4 Typical Application

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.