Dual Ultrathin 2A or Single 4A Step-Down DC/DC μModule Regulator

The LTM4622A is a complete dual 2A step-down switching mode μModule® (micromodule) regulator in a tiny ultrathin 6.25mm × 6.25mm × 1.82mm LGA and 2.42mm BGA packages. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 3.6V to 20V, the LTM4622A supports an output voltage range of 1.5V to 12V, set by a single external resistor. Its high efficiency design delivers dual 2A continuous, 3A peak, output current. Only a few ceramic input and output capacitors are needed.

The LTM4622A supports selectable Burst Mode operation and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include input overvoltage, output overcurrent and overtemperature protection.

The LTM4622A is available with SnPb (BGA) or RoHS compliant terminal finish.

Product Selection Guide

Part Number

VIN Range

VOUT Range

IOUT

LTM4622

3.6V to 20V

0.6V to 5.5V

Dual 2.5A or Single 5A

LTM4622A

1.5V to 12V

Dual 2A or Single 4A

Applications

* General Purpose Point-of-Load Conversion

* Telecom, Networking and Industrial Equipment

* Medical Diagnostic Equipment

* Test and Debug Systems

* Complete Solution in <1cm2

* Wide Input Voltage Range: 3.6V to 20V

* 1.5V to 12V Output Voltage

* Dual 2A (3A Peak) or Single 4A Output Current

* ±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature

* Current Mode Control, Fast Transient Response

* External Frequency Synchronization