Datasheet Texas Instruments LM25011MYX/NOPB — 数据表

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Documents LM25011, LM25011-Q1, LM25011A, LM25011A-Q1
SNVS617H – APRIL 2009 – REVISED NOVEMBER 2014 LM25011, LM25011-Q1, LM25011A, LM25011A-Q1 42-V 2-A Constant On-Time Switching
Regulator With Adjustable Current Limit
1 Features 3 Description The LM25011 constant on-time step-down switching
regulator features all the functions needed to
implement a low-cost, efficient, buck bias regulator
capable of supplying up to 2 A of load current. This
high-voltage regulator contains an N-Channel Buck
switch, a startup regulator, current limit detection, and
internal ripple control. The constant on-time
regulation principle requires no loop compensation,
results in fast load transient response, and simplifies
circuit implementation. The operating frequency
remains constant with line and load. The adjustable
valley current limit detection results in a smooth
transition from constant voltage to constant current
mode when current limit is reached, without the use
of current limit foldback. The PGD output indicates …