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LED Driver
MPQ4425B-AEC1

MPQ4425B-AEC1

High-Efficiency, 1.5A, 36V, 400kHz, Synchronous, Step-Down, LED Driver, AEC-Q100 Qualified

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Description

The MPQ4425B is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs.
It offers a compact solution to achieve a 1.5A of continuous output current with excellent load and line regulation over a wide input supply range. Synchronous mode operation ensures high efficiency, while current mode operation provides fast transient responses and eases
loop stabilization. Additional features include over-current protection (OCP) and thermal shutdown (TSD).

This device requires a minimal number of readily available, external components, and is available in space-saving QFN-13 (2.5mmx3mm) and TSOT23-8 packages.

Features & Benefits

Wide 4V to 36V Operating Input Range
85mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
Default 400kHz 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 QFN-13 (2.5mmx3mm) and TSOT23-8 Packages
Available in AEC-Q100 Grade 1

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