SW

L

1

4.7:H

VBAT

VOUT

FB

C

2

10 F

:

EN

GND

TLV61220

V

OUT

R

1

R

2

V

IN

C

1

10 F

:

0.7V to V

OUT

1.8V to 5.5V

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TLV61220

SLVSB53A – MAY 2012 – REVISED DECEMBER 2014

TLV61220 Low-Input Voltage Step-Up Converter in Thin SOT-23 Package

1 Features

3 Description

The TLV61220 device provides a power-supply

1

•

Up to 95% Efficiency at Typical Operating

solution for products powered by either a single-cell,

Conditions

two-cell, or three-cell alkaline, NiCd or NiMH, or one-

•

5.5-

μA Quiescent Current

cell Li-Ion or Li-polymer battery. Possible output

•

Startup Into Load at 0.7-V Input Voltage

currents depend on the input-to-output voltage ratio.

The boost converter is based on a hysteretic

•

Operating Input Voltage from 0.7 V to 5.5 V

controller topology using synchronous rectification to

•

Pass-Through Function during Shutdown

obtain maximum efficiency at minimal quiescent

•

Minimum Switching Current 200 mA

currents. The output voltage of the adjustable version

can be programmed by an external resistor divider, or

•

Protections:

is set internally to a fixed output voltage. The

–

Output Overvoltage

converter can be switched off by a featured enable

–

Overtemperature

pin. While being switched off, battery drain is

minimized. The device is packaged in a 6-pin thin

–

Input Undervoltage Lockout

SOT-23 package (DBV).

•

Adjustable Output Voltage from 1.8 V to 5.5 V

spacer

•

Small 6-pin Thin SOT-23 Package

Device Information(1)

2 Applications

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Battery Powered Applications

TLV61220

SOT (6)

2.90 mm x 1.60 mm

–

1 to 3 Cell Alkaline, NiCd or NiMH

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

–

1 Cell Li-Ion or Li-Primary

the end of the datasheet.

•

Solar or Fuel Cell Powered Applications

•

Consumer and Portable Medical Products

•

Personal Care Products

•

White or Status LEDs

•

Smartphones

4 Typical Application Schematic

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.