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L6726ATR Datasheet(PDF) 1 Page - STMicroelectronics |
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L6726ATR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 24 page October 2006 Rev 2 1/24 24 L6726A Single phase PWM controller Feature ■ Flexible power supply from 5V to 12V ■ Power conversion input as low as 1.5V ■ 1% output voltage accuracy ■ High-current integrated drivers ■ Adjustable output voltage ■ 0.8V internal reference ■ Sensorless and programmable OCP across Low-side RdsON ■ Oscillator internally fixed at 270kHz ■ 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 & DSP power supply ■ Distributed power supply ■ General DC / DC converters Order codes 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 1.5V and device supply voltage ranging from 5V to 12V. L6726A provides simple control loop with trans- conductance error amplifier. The integrated 0.8V reference allows regulating output voltage with ±1% accuracy over line and temperature variations. Oscillator is internally fixed to 270kHz. 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. SO-8 Part Number Package Packing L6726A SO-8 Tube L6726ATR SO-8 Tape & Reel www.st.com |
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