LM5002
www.ti.com
SNVS496D –JANUARY 2007–REVISED MARCH 2013
LM5002 High Voltage Switch Mode Regulator
Check for Samples: LM5002
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FEATURES
DESCRIPTION
The LM5002 high voltage switch mode regulator
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 Volt N-
Channel MOSFET with a 0.5 Amp 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 1.5MHz. The oscillator can also
be synchronized to an external clock. Additional
protection features include: current limit, thermal
shutdown, under-voltage lockout and remote
shutdown capability. The device is available in both
SOIC-8 and WSON-8 packages.
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Integrated 75 Volt N-Channel MOSFET
Ultra-Wide Input Voltage Range from 3.1V to
75V
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Integrated High Voltage Bias Regulator
Adjustable Output Voltage
1.5% Output Voltage Accuracy
Current Mode Control with Selectable
Compensation
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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
Packages
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SOIC-8
WSON-8 (4mm x 4mm)
Typical Application Circuit
+12V to +36V
+48V
VIN
SW
COMP
LM5002
EN
FB
VCC
RT
GND
Figure 1. Boost Regulator Application Schematic
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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