The LM2637 provides a comprehensive embedded power supply solution for motherboards hosting high performance MPUs such as M II™, Pentium™II, K6-2 and other similar high performance MPUs. The LM2637 incorporates a 5-bit programmable, synchronous buck switching controller and two high-speed linear regulator controllers in a 24-pin SO package.
Features
Provides 3 regulated voltages
Power Good flag and output enable
Under-voltage latch-off Switching Section
Synchronous rectification
5-bit DAC programmable from 3.5V to 1.3V
Typical 1% DAC tolerance
Switching frequency: 50 kHz to 1 MHz
Two levels of over-voltage protection
Two methods of over-current protection
Adaptive non-overlapping FET gate drives
Soft start without external capacitor Linear Section
N-FET and NPN driving capability
Ultra fast response speed
Output voltages default to 1.5V and 2.5V yet adjustable
