MPM3840

4A, 5.5V, Synchronous Step-down Power Module with Integrated Inductor and Power Good

Datasheet EN

Description

The MPM3840 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs and an inductor. The MPM3840 can provide 4A of continuous output current from a 2.8V to 5.5V input voltage with excellent load and line regulation. The MPM3840 is ideal for powering portable equipment that run on a single-cell Lithium-ion (Li+) battery. The output voltage can be regulated as low as 0.6V. Only input capacitors, output capacitors, and feedback (FB) resistors are required to complete the design. The constant-on-time (COT) control scheme provides a fast transient response, high lightload efficiency, and easy loop stabilization. Full protection features include cyclebycycle current limiting and thermal shutdown. The MPM3840 requires a minimal number of readily available, standard, external components and is available in an ultra-small QFN-20 (3mmx5mmx1.6mm) package.

Features & Benefits

>80% Light-Load Efficiency
Low IQ: 40µA
Wide 2.8V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
4A Output Current
25mO and 12mO Internal Power MOSFETs
1.2MHz Frequency
External Mode Control
External Mode Control (PWM.PFM) and Dynamic Analog Voltage
EN and Power Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection (OCP)
1.5ms Internal Soft-Start Time with Pre-Biased Start-Up
Short-Circuit Protection (SCP) with Hiccup Mode
Thermal Shutdown
Stable with Low ESR Output Ceramic Capacitors
Available in a QFN-20 (3mmx5mmx1.6mm) Package

Active Part Numbers:

MPM3840GQV-P MPM3840GQV-Z

Meaning of P & Z

Related Products

EVM3840-QV-00A High Efficiency, 4A, 5.5V, 1.2MHz Synchronous Step-Down Converter With Integrated Inductor Evaluation Board

The MPM3840 is a monolithic step-down converter with built-in internal power MOSFETs and inductor. The DC-DC module is housed in a small surface QFN package which is sized 3mm width by 5mm length by 1.6mm height. It can provide 4A continuous output current from a 2.8V to 5.5V input voltage with excellent load and line regulation. The MPM3840 is ideal for powering portable equipment that runs with a single cell Lithium-Ion (Li+) Battery. 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 light-load efficiency and easy loop stabilization. Fault condition protection includes cycle-by-cycle current limit and thermal shutdown.

The MPM3840 requires a minimum number of readily available standard external components and is available in an ultra-small QFN-20 (3mmx5mm) package.

$25.00
+ tax