LM25007 - National Semiconductor

LM25007 Step-Down Switching Regulator

The LM25007 is a monolithic step-down switching regulator featuring all of the functions needed to implement a low cost, efficient, power supply. Capable of driving a 0.5Amp load over a 9V-42V input voltage range, this device is easy to apply and is provided in the small MSOP-8 and the thermally enhanced LLP-8 packages. Ultra-fast transient response is achie.

Features

include: thermal shutdown, Vcc under-voltage lockout, gate drive under-voltage lockout, and max duty cycle limiter. Features n n n n n n n n n n n n Integrated 0.74 ohm N-Channel MOSFET switch Guaranteed 0.5Amp output current Ultra-Fast Transient Response Up to 800kHz operation No control loop compensation required Vin feed forward provides constant operating frequency 2% accurate 2.5V feedback from -40˚C to 125˚C Highly efficient operation Intelligent current limit protection External shutdown control Thermal shutdown MSOP-8 and thermally enhanced LLP packages Typical Applications n n n n n.