LM27313XMFX/NOPB

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.

Applications

• White LED Current Source
• PDAs and Palm-Top Computers
• Digital Cameras
• Portable Phones, Games, and Media Players
• GPS Devices

Key features

• 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 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