High Voltage Input Buck ICs

LP6490-HV Buck
8-40Input Voltage(V):
AdjOutput Voltage(V):
180KSwitch Frequency(Hz):
2400Output Current(mA):
PWM, inside N mosfet,98% Duty,,Line CompensationSpecial Features:

30V 2.4A Synchronous Buck Converter

General Description

The LP6490 is a synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. The LP6490 offers a very compact solution that achieves a maximum of 2.4A of continuous output current. The LP6490 has synchronous mode operation for high efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. The LP6490 requires a minimum number of readily available standard external components. Other features include cable compensation, programmable current limit and thermal shutdown.


 Car Charger / Adaptor
 LED Driver
 Pre-Regulator for Linear Regulators
 Distributed Power Systems
 Battery Charger



 Wide 8V to 30V Continuous Operating Input
 80mΩ/60mΩ Low RDS(ON) Internal Power
 Up to 93% Efficiency
 Default 180kHz Switching Frequency
 Internal Soft Start
 Output Line Drop Compensation
 Over- Voltage Protection (OVP)
 Over-Current Protection (OCP) programmable
with External Resistor
 No Loop Compensation Required
 Thermal Shutdown
 Available in ESOP8 Package

Marking Information

Please see specification. 
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We will send a copy to you as fast as we can.


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