ChongMing Group (HK) Int'l Co., Ltd |
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LM27313XMF/NOPB Power Regulator IC Switching Voltage Regulators 1.6 MHZ BOOST CONVERTER
1 Features
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
2 Applications
White LED Current Source
PDAs and Palm-Top Computers
Digital Cameras
Portable Phones, Games, and Media Players
GPS Devices
3 Description
The LM27313/-Q1 switching regulator is a current- mode 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.
Device Information
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
LM27313 | SOT-23 (5) | 2.90 mm x 1.60 mm |
LM27313-Q1 |