MPQ2451

36V, 2MHz, 0.6A Step-Down Converter Industrial-Grade

Datasheet

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, TSOT23-6L and QFN-6L packages.

Features & Benefits

Guaranteed Industrial/Automotive Temp. Range Limits
130μA Operating Quiescent Current
Wide 3.3V-to-36V Operating Input Range
500mΩ 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 0.9∙VIN, Fixed 5V & 3.3V Output
6-Lead SOT23, TSOT23 and QFN Packages
Available in AEC-Q100 Grade 1

Active Part Numbers:

MPQ2451DG-AEC1-LF-P MPQ2451DG-AEC1-LF-P MPQ2451DG-AEC1-LF-Z MPQ2451DG-LF-P MPQ2451DG-LF-P MPQ2451DG-LF-Z MPQ2451DJ-AEC1-LF-P MPQ2451DJ-AEC1-LF-P MPQ2451DJ-AEC1-LF-Z MPQ2451DJ-LF-P MPQ2451DJ-LF-Z MPQ2451GG-33-P MPQ2451GG-33-P MPQ2451GG-33-Z MPQ2451GG-5-AEC1-P MPQ2451GG-5-AEC1-P MPQ2451GG-5-AEC1-Z MPQ2451GG-5-P MPQ2451GG-5-P MPQ2451GG-5-Z MPQ2451GT-33-AEC1-P MPQ2451GT-33-AEC1-P MPQ2451GT-33-AEC1-Z MPQ2451GT-33-P MPQ2451GT-33-P MPQ2451GT-33-Z MPQ2451GT-5-AEC1-P MPQ2451GT-5-AEC1-P MPQ2451GT-5-AEC1-Z MPQ2451GT-5-P MPQ2451GT-5-P MPQ2451GT-5-Z MPQ2451DT-AEC1-LF-P MPQ2451DT-AEC1-LF-P MPQ2451DT-AEC1-LF-Z MPQ2451DT-LF-P MPQ2451DT-LF-P MPQ2451DT-LF-Z MPQ2451GG-33-AEC1-P MPQ2451GG-33-AEC1-P MPQ2451GG-33-AEC1-Z

Evaluation Tools

0EVQ2451-G-00A Evaluation Kit .6A, 2MHz, 36V Step-Down Converter Evaluation Board

The EVQ2451-G-00A is an evaluation board for the MPQ2451, a fixed 2MHz frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. The IC provides 0.6A output with current mode control for fast loop response and easy compensation.

High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses.

The soft-start function helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.

By switching at 2MHz, smaller value inductor and input/output capacitor can be used to lower down cost and save board space.

$50.00
+ tax

EVQ2451-G-01A

0.3A, 2MHz, 36V Step-Down Converter Evaluation Board

EVQ2451-G-33-00A

0.6A, 2MHz, 36V Step-Down Converter Evaluation Board