LM27313

SW

FB

GND

SHDN

U1

R3

51k

SHDN

GND

C1

2.2 PF

R2

13.3k

CF

120 pF

D1

MBR0530

R1/205k

L1/10 PH

C2

4.7 PF

20V

OUT

130 mA

(TYP)

LM27313

SW

FB

GND

SHDN

U1

R3

51k

SHDN

GND

C1

2.2 PF

R2

13.3k

CF

220 pF

D1

MBR0520

R1/117k

L1/10 PH

C2

4.7 PF

12V

OUT

260 mA

(TYP)

LM27313

www.ti.com

SNVS487D – DECEMBER 2006 – REVISED APRIL 2013

LM27313/LM27313-Q1

Check for Samples: LM27313

1

FEATURES

DESCRIPTION

The LM27313 switching regulator is a current-mode

2

•

LM27313-Q1 is an Automotive Grade Product

boost converter with a fixed operating frequency of

that is AEC-Q100 Grade 1 Qualified (-40°C to

1.6 MHz.

+125°C Operating Junction Temperature)

The use of the SOT-23 package, made possible by

•

30V DMOS FET Switch

the minimal losses of the 800 mA switch, and small

•

1.6 MHz Switching Frequency

inductors and capacitors result in extremely high

•

power density. The 30V internal switch makes these

solutions perfect for boosting to voltages of 5V to

•

Switch Current up to 800 mA

28V.

•

Wide Input Voltage Range (2.7V–14V)

This part has a logic-level shutdown pin that can be

•

Low Shutdown Current (<1 µA)

used to reduce quiescent current and extend battery

•

5-Lead SOT-23 Package

life.

•

Uses Tiny Capacitors and Inductors

Protection is provided through cycle-by-cycle current

•

Cycle-by-Cycle Current Limiting

limiting and thermal shutdown. Internal compensation

•

Internally Compensated

simplifies design and reduces component count.

APPLICATIONS

•

White LED Current Source

•

PDA’s and Palm-Top Computers

•

Digital Cameras

•

Portable Phones, Games and Media Players

•

GPS Devices

Typical Application Circuits

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

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2013, 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.