MPQ2451-5中文资料36V, 2MHz, 0.6A Step-Down Converter Automotive-Grade数据手册MPS规格书

描述 Description

The MPQ2451 is a high frequency, step-down, switching regulator with an integrated high-voltage high-side power MOSFET. It efficiently provides up to a 0.6A output with current-mode control for fast loop response.

The wide 3.3V-to-36V input range accommodates a variety of automotive step-down applications, and the 3µA shutdown-mode quiescent current allows use in battery-powered applications.

The MPQ2451 achieves high power-conversion efficiency over a wide load range by scaling down the switching frequency under light-load condition to reduce the switching and gate driving losses.

Frequency fold-back prevents inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.

The MPQ2451 is available in a cost-effective SOT23-6L package.

特性 Features

● Guaranteed Industrial/Automotive Temp. Range Limits
● 130µA Operating Quiescent Current
● Wide 3.3V-to-36V Operating Input Range
● 500mO Internal Power MOSFET
● 2MHz Fixed Switching Frequency
● Internally Compensated
● Stable with Ceramic Output Capacitors
● Internal Soft-Start
● Precision Current Limit Without Current Sensing Resistor
● >90% Efficiency
● Output Adjustable from 0.8V to 0.8·VIN
● 6-Lead SOT23 Package