Datasheet Texas Instruments LM25017MRE/NOPB — 数据表

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Design LM25017
SNVS951E – DECEMBER 2012 – REVISED NOVEMBER 2017 LM25017 48-V, 650-mA Constant On-Time Synchronous Buck Regulator
1 Features 3 Description The LM25017 device is a 48-V, 650-mA synchronous
step-down regulator with integrated high-side and
low-side MOSFETs. The constant on-time (COT)
control scheme employed in the LM25017 device
requires no loop compensation, provides excellent
transient response, and enables very high step-down
ratios. The on-time varies inversely with the input
voltage resulting in nearly constant frequency over
the input voltage range. A high voltage startup
regulator provides bias power for internal operation of
the IC and for integrated gate drivers. 1 Wide 7.5-V to 48-V Input Range
Integrated 650-mA High-Side and
Low-Side Switches
No Schottky Diode Required
Constant On-Time Control …