L6726A 270kHz Synchronous Buck High Current PWM Controller STM SOIC-8
Pack Quantity:- 1, 2, 5, 10, 20, 50
Feature ■ Flexible power supply from 5 V to 12 V ■ Power conversion input as low as 1.5 V ■ 1% output voltage accuracy ■ High-current integrated drivers ■ Adjustable output voltage ■ 0.8 V internal reference ■ Sensorless and programmable OCP across Low-side RdsON ■ Oscillator internally fixed at 270 kHz ■ Programmable soft-start ■ Ls-less start up ■ Disable function ■ FB disconnection protection ■ SO-8 package Applications ■ Subsystem power supply (MCH, IOCH, PCI...) ■ Memory and termination supply ■ CPU and DSP power supply ■ Distributed power supply ■ General DC / DC converters
Description L6726A is a single-phase step-down controller with integrated high-current drivers that provides complete control logic, protections and reference voltage to realize in an easy and simple way general DC-DC converters by using a compact SO-8 package. Device flexibility allows managing conversions with power input VIN as low as 1.5 V and device supply voltage ranging from 5 V to 12 V. L6726A provides simple control loop with transconductance error amplifier. The integrated 0.8 V reference allows regulating output voltage with ±1% accuracy over line and temperature variations. Oscillator is internally fixed to 270 kHz. L6726A provides programmable over current protection. Current information is monitored across the low-side MOSFET RdsON saving the use of expensive and space-consuming sense resistors. FB disconnection protection prevents excessive and dangerous output voltages in case of floating FB pin.