MP2151

5.5V, 1A, Synchronous Step-Down Converter with 25μA I_Q and Output Discharge in an Ultra-Small Package

Datasheet

Description

The MP2151 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. The MP2151 achieves 1A of continuous output current from a 2.5V to 5.5V input voltage, with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.

The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Full protection features include cycle-by-cycle current limiting and thermal shutdown.

The MP2151 is ideal for a wide range of applications including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

The MP2151 requires a minimal number of readily available, standard external components, and is available in ultra-small SOT563 or UTQFN (1.2mmx1.6mm) packages.

Features & Benefits

Low I_Q: 25μA
1.1MHz Switching Frequency
EN for Power Sequencing
1% FB Accuracy
Wide 2.5V to 5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 1A Output Current
80mΩ and 50mΩ Internal Power MOSFET Switches
100% Duty On
Output Discharge
Output Over-Voltage Protection (OVP)
Short-Circuit Protection (SCP) with Hiccup Mode
Power Good (PG) Only for Fixed Output Version
Available in a SOT563 or UTQFN (1.2mmx1.6mm) Package

Active Part Numbers:

MP2151GQFU-12-Z MP2151GQFU-15-Z MP2151GQFU-18-Z MP2151GQFU-25-Z MP2151GQFU-33-Z MP2151GQFU-P MP2151GQFU-Z MP2151GTF-12-Z MP2151GTF-15-Z MP2151GTF-18-P MP2151GTF-18-Z MP2151GTF-25-Z MP2151GTF-33-P MP2151GTF-33-Z MP2151GTF-P MP2151GTF-Z MP2151GTF-33 -Z MP2151XN MP2151XR

Evaluation Tools

EV2151-TF-00A Evaluation Kit 1A, Synchronous Step-Down Converter with 25μA Quiescent Current

The MP2151 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A of continuous output current from a 2.5V to 5.5V input voltage range, with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. The constant-on-time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2151 is available in an ultra-small SOT563, or UTQFN (1.2mmx1.6mm) package, and requires a minimal number of readily available, standard external components.

The MP2151 is ideal for a wide range of applications including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

$25.00
+ tax