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LM25010MH Datasheet

  • LM25010MH

  • 42V, 1.0A Step-Down Switching Regulator

  • 773.37KB

  • 17頁(yè)

  • NSC

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LM25010 42V, 1.0A Step-Down Switching Regulator
February 2006
LM25010
42V, 1.0A Step-Down Switching Regulator
General Description
The LM25010 features all the functions needed to implement
a low cost, efficient, buck regulator capable of supplying in
excess of 1A load current. This high voltage regulator inte-
grates an N-Channel Buck Switch, and is available in ther-
mally enhanced LLP-10 and TSSOP-14EP packages. The
constant on-time regulation scheme requires no loop com-
pensation resulting in fast load transient response and sim-
plified circuit implementation. The operating frequency re-
mains constant with line and load variations due to the
inverse relationship between the input voltage and the on-
time. The valley current limit detection is set at 1.25A. Addi-
tional features include: VCC under-voltage lock-out, thermal
shutdown, gate drive under-voltage lock-out, and maximum
duty cycle limiter.
Features
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Wide 6V to 42V Input Voltage Range
Valley Current Limiting At 1.25A
Programmable Switching Frequency Up To 1 MHz
Integrated N-Channel Buck Switch
Integrated High Voltage Bias Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
Nearly Constant Operating Frequency With Line and
Load Variations
Adjustable Output Voltage
2.5V,
鹵
2% Feedback Reference
Programmable Soft-Start
Thermal shutdown
Typical Applications
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Non-Isolated Telecommunications Regulator
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Secondary Side Post Regulator
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Power SUpply for Automotive Electronics
Package
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LLP-10 (4 mm x 4 mm)
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TSSOP-14EP
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Both Packages Have Exposed Thermal Pad For
Improved Heat Dissipation
Basic Step-Down Regulator
20172743
漏 2006 National Semiconductor Corporation
DS201727
www.national.com

LM25010MH 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 2.5 V to 37 V

  • 1 A

  • 100 KHz to 1000 KHz

  • SMD/SMT

  • TSSOP EP

  • Tube

  • 1

  • 94

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