Datasheet

LM2735
www.ti.com
SNVS485F JUNE 2007REVISED APRIL 2013
LM2735/LM2735-Q1 520kHz/1.6MHz – Space-Efficient Boost and SEPIC DC-DC Regulator
Check for Samples: LM2735
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FEATURES
DESCRIPTION
The LM2735 is an easy-to-use, space-efficient 2.1A
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Input Voltage Range 2.7V to 5.5V
low-side switch regulator ideal for Boost and SEPIC
Output Voltage Range 3V to 24V
DC-DC regulation. It provides all the active functions
2.1A Switch Current over Full Temperature
to provide local DC/DC conversion with fast-transient
Range
response and accurate regulation in the smallest PCB
area. Switching frequency is internally set to either
Current-Mode Control
520kHz or 1.6MHz, allowing the use of extremely
Logic High Enable Pin
small surface mount inductor and chip capacitors
Ultra Low Standby Current of 80 nA in
while providing efficiencies up to 90%. Current-mode
Shutdown
control and internal compensation provide ease-of-
use, minimal component count, and high-
170 m NMOS Switch
performance regulation over a wide range of
±2% Feedback Voltage Accuracy
operating conditions. External shutdown features an
Ease-of-Use, Small Total Solution Size
ultra-low standby current of 80 nA ideal for portable
applications. Tiny SOT-23, WSON, and MSOP-
Internal Soft-Start
PowerPAD packages provide space-savings.
Internal Compensation
Additional features include internal soft-start, circuitry
Two Switching Frequencies
to reduce inrush current, pulse-by-pulse current limit,
and thermal shutdown.
520 kHz (LM2735-Y)
1.6 MHz (LM2735-X)
Uses Small Surface Mount Inductors and
Chip Capacitors
Tiny SOT-23, WSON, and MSOP-PowerPAD
Packages
LM2735-Q1 is AEC-Q100 Grade 1 Qualified and
is Manufactured on an Automotive Grade Flow
APPLICATIONS
LCD Display Backlighting For Portable
Applications
OLED Panel Power Supply
USB Powered Devices
Digital Still and Video Cameras
White LED Current Source
Automotive
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, 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.

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