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LM27313, LM27313-Q1
SNVS487E –...
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LM27313, LM27313-Q1
SNVS487E – DECEMBER 2006 – REVISED JANUARY 2015
LM27313/-Q1 1.6-MHz Boost Converter With 30-V Internal FET Switch in SOT-23
1 Features
1 LM27313-Q1 is an Automotive-Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)
30-V DMOS FET Switch 1.6-MHz Switching Frequency Low RDS(ON) DMOS FET Switch Current up to 800 mA Wide Input Voltage Range (2.7 V to 14 V) Low Shutdown Current (< 1 µA) 5-Lead SOT-23 Package Uses Tiny Capacitors and Inductors Cycle-by-Cycle Current Limiting Internally Compensated
3 Description
The LM27313/-Q1 switching
regulator is a currentmode boost converter with a fixed operating frequency of 1.6 MHz.
The use of the SOT-23 package, made possible by the minimal losses of the 800-mA switch, and the small inductors and capacitors result in extremely high power density. The 30-V internal switch makes these solutions perfect for boosting to voltages of 5 V to 28 V.
This device has a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.
Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.
2 Applications
White LED Current Source PDAs and Palm-Top Computers Digital Cameras Portable Phones, Games, and Media Players GPS Devices
Device Informa...