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L6730 数据表(PDF) 1 Page - STMicroelectronics |
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L6730 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 52 page  December 2009 Doc ID 11938 Rev 3 1/52 52 L6730 L6730B Adjustable step-down controller with synchronous rectification Features ■ Input voltage range from 1.8 V to 14 V ■ Supply voltage range from 4.5 V to 14 V ■ Adjustable output voltage down to 0.6 V with ±0.8% accuracy over line voltage and temperature (0°C~125°C) ■ Fixed frequency voltage mode control ■ tON lower than 100 ns ■ 0% to 100% duty cycle ■ Selectable 0.6 V or 1.2 V internal voltage reference ■ External input voltage reference ■ Soft-start and inhibit ■ High current embedded drivers ■ Predictive anti-cross conduction control ■ Selectable uvlo threshold (5 V or 12 V BUS) ■ Programmable high-side and low-side RDS(on) sense overcurrent protection ■ Switching frequency programmable from 100 kHz to 1 MHz ■ Master/slave synchronization with 180° phase shift ■ Pre-bias start up capability (L6730) ■ Selectable source/sink or source only capability after soft-start (L6730) ■ Selectable constant current or hiccup mode overcurrent protection after soft-start (L6730B) ■ Power Good output with programmable delay ■ Overvoltage protection with selectable latched/not-latched mode ■ Thermal shut-down ■ Package: HTSSOP20 Applications ■ High performance / high density DC-DC modules ■ Low voltage distributed DC-DC ■ niPOL converters ■ DDR memory supply ■ DDR memory bus termination supply Table 1. Device summary Order codes Package Packing L6730 HTSSOP20 Tube L6730TR HTSSOP20 Tape and reel L6730B HTSSOP20 Tube L6730BTR HTSSOP20 Tape and reel HTSSOP20 www.st.com |
类似零件编号 - L6730 |
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类似说明 - L6730 |
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