Datasheet > LM5001_15

LM5001_15

更新时间： 2024-11-29 00:57:15

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High-Voltage Switch-Mode Regulator

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LM5001, LM5001-Q1

SNVS484H –JANUARY 2007–REVISED JULY 2015

LM5001x High-Voltage Switch-Mode Regulator

1 Features

3 Description

The LM5001 high-voltage switch-mode regulator

•

AEC-Q100 Qualified (T_J= –40°C to 125°C)

Integrated 75-V N-Channel MOSFET

features all of the functions necessary to implement

efficient high-voltage Boost, Flyback, SEPIC and

Forward converters, using few external components.

This easy-to-use regulator integrates a 75-V N-

Channel MOSFET with a 1-A peak current limit.

Current mode control provides inherently simple loop

compensation and line-voltage feed-forward for

superior rejection of input transients. The switching

frequency is set with a single resistor and is

programmable up to 1.5 MHz. The oscillator can also

be synchronized to an external clock. Additional

protection features include: current limit, thermal

shutdown, undervoltage lockout and remote

shutdown capability.

Ultra-Wide Input Voltage Range from

3.1 V to 75 V

•

Integrated High Voltage Bias Regulator

Adjustable Output Voltage

1.5% Output Voltage Accuracy

Current Mode Control with Selectable

Compensation

•

Wide Bandwidth Error Amplifier

Integrated Current Sensing and Limiting

Integrated Slope Compensation

85% Maximum Duty Cycle Limit

Single Resistor Oscillator Programming

Oscillator Synchronization Capability

Enable / Undervoltage Lockout (UVLO) Pin

Thermal Shutdown

Device Information⁽¹⁾

DEVICE NAME

LM5001

LM5001Q1

PACKAGE

BODY SIZE

4.9 mm x 3.91 mm

4 mm x 4 mm

SOIC (8)

WSON (8)

SOIC (8)

4.9 mm x 3.91 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

2 Applications

•

DC-DC Power Supplies for Industrial,

Communications, and Automotive Applications

•

Boost, Flyback, SEPIC and Forward Converter

Topologies

+12V to +36V

+48V

VIN

COMP

LM5001

VCC

GND

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...26

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