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Vin Max<44V
MP4425A

MP4425A

High-Efficiency, 1.5A, 36V, 2.2MHz, Synchronous, Step-Down LED Driver

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Description

The MP4425A is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs. It offers a very compact solution to achieve 1.5A of continuous output current with excellent load and line regulation over a wide input supply range. The MP4425A has synchronous mode operation to get high efficiency.

Current mode operation provides fast transient response and eases loop stabilization.

Full protection features include over-current protection (OCP) and thermal shutdown (TSD).

The MP4425A requires a minimal number of readily available, standard external components, and is available in a space-saving QFN-13
(2.5mmx3mm) package.

Features & Benefits

Wide 4V to 36V Operating Input Range
85mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
Default 2.2MHz Switching Frequency
PWM Dimming (Min 100Hz Dimming Frequency)
Forced CCM Mode
0.2V Reference Voltage
Internal Soft Start
Fault Indication for LED Short, Open, and Thermal Shutdown
Over-Current Protection (OCP) with Valley- Current Detection
Thermal Shutdown
CISPR25 Class 5 Compliant
Available in a QFN-13 (2.5mmx3mm) Package

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Technical Forum

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All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.

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