降圧
MPM3811

MPM3811

2.3V-5.5V Input, 1A Power Module in Small 2mmx2mmx1.6mm QFN Package

Datasheet EN

概要

The MPM3811 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs and an inductor. The MPM3811 achieves 1A of continuous output current from a 2.3V to 5.5V input voltage with excellent load and line regulation. The MPM3811 is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems. The output voltage can be regulated as low as 0.6V. Only input capacitors, output capacitors, and feedback (FB) resistors are needed to complete the design.

The constant-on-time (COT) control scheme provides fast transient response, high light-load efficiency, and easy loop stabilization.

Full protection features include cycle-by-cycle current limiting and thermal shutdown.

The MPM3811 requires a minimal number of readily available, standard, external components and is available in an ultra-small QFN-10 (2mmx2mmx1.6mm) package.

機能と利点

Up to 91% Peak Efficiency
Wide 2.3V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
1A Output Current
2.2MHz Frequency
EN for Power Sequencing
Cycle-by-Cycle Over-Current Protection (OCP)
0.5ms Internal Soft-Start (SS) Time
Output Discharge
Short-Circuit Protection (SCP) with Hiccup Mode
Thermal Shutdown
Stable with Low-ESR Output Ceramic Capacitors
Available in a QFN10 (2mmx2mmx1.6mm) Package

Evaluation Tools

EVM3811-G-00A Evaluation Kit High Efficiency, 1A, 5.5V, 2.2 MHz Synchronous Step-down Switcher with Integrated Inductor

The MPM3811 is a monolithic step-down switch mode converter with built-in power MOSFETs and inductor. The DC-DC module has a small surface mount 2mm x 2mm QFN package. It achieves 1A continuous output current from a 2.3V to 5.5V input voltage with excellent load and line regulation. The MPM3811 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile Devices, and other low-power systems. The output voltage can be regulated as low as 0.6V. Only input, output capacitors and FB resistors are needed to complete the design.

The Constant-On-time (COT) control scheme provides fast transient response, high efficiency at lightload and easy loop compensation.

The MPM3811 features fault protection functions including cyclebycycle current limit and thermal shutdown.

The MPM3811 requires a minimum number of readily available standard external components and is available in an ultra-small QFN10 (2mmx2mmx1.6mm) package.

￥2,740.25
+ tax

設計リソース