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+48V

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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

1

•

features all of the functions necessary to implement

•

Integrated 75-V N-Channel MOSFET

efficient high-voltage Boost, Flyback, SEPIC and

•

Ultra-Wide Input Voltage Range from

Forward converters, using few external components.

3.1 V to 75 V

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

Channel MOSFET with a 1-A peak current limit.

•

Integrated High Voltage Bias Regulator

Current mode control provides inherently simple loop

•

Adjustable Output Voltage

compensation

and

line-voltage

feed-forward

for

•

1.5% Output Voltage Accuracy

superior rejection of input transients. The switching

frequency is set with a single resistor and is

•

Current Mode Control with Selectable

programmable up to 1.5 MHz. The oscillator can also

Compensation

be synchronized to an external clock. Additional

•

Wide Bandwidth Error Amplifier

protection features include: current limit, thermal

•

Integrated Current Sensing and Limiting

shutdown,

undervoltage

lockout

and

remote

shutdown capability.

•

Integrated Slope Compensation

•

85% Maximum Duty Cycle Limit

Device Information(1)

•

Single Resistor Oscillator Programming

DEVICE NAME

PACKAGE

BODY SIZE

•

Oscillator Synchronization Capability

SOIC (8)

4.9 mm x 3.91 mm

LM5001

•

Enable / Undervoltage Lockout (UVLO) Pin

WSON (8)

4 mm x 4 mm

•

Thermal Shutdown

LM5001Q1

SOIC (8)

4.9 mm x 3.91 mm

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

2 Applications

the end of the datasheet.

•

DC-DC Power Supplies for Industrial,

Communications, and Automotive Applications

•

Boost, Flyback, SEPIC and Forward Converter

Topologies

1

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.