L6738

L6738 Single-phase PWM controller with light-load efficiency optimization Features ■ Flexible power supply from 5 V to 12 V bus ■ Power conversion input as low as 1.5 V ■ Light-load efficiency optimization ■ Embedded bootstrap diode ■ VIN detector ■ 0.8 V internal reference ■ 0.5% output voltage accuracy ■ Remote GND recovery ■ High-current integrated drivers ■ Sensorless and programmable precise-OC sense across inductor DCR ■ OV protection ■ Programmable oscillator up to 600 kHz ■ LS-less to manage pre-bias startup ■ Adjustable output voltage ■ Disable function ■ Internal soft-start ■ VFQFPN 16 3x3 mm package Applications ■ Memory and termination supply ■ Subsystem power supply (MCH, IOCH, PCI) ■ CPU and DSP power supply ■ Distributed power supply ■ General DC-DC converter Description The L6738 is a single-phase step-down controller with integrated high-current drivers that provides complete control logic and protection to realize a DC-DC ...