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LTM4644-1 - Quad DC/DC uModule Regulator

Download the LTM4644-1 datasheet PDF. This datasheet also covers the LTM4644 variant, as both devices belong to the same quad dc/dc umodule regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The LTM®4644/LTM4644-1 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output.

Outputs can be paralleled in an array for up to 16A capability.

Included in the package are the switching controllers, power FETs, inductors and support components.

Key Features

  • n Quad Output Step-Down µModule® Regulator with 4A per Output n Wide Input Voltage Range: 4V to 14V n 2.375V to 14V with External Bias n 0.6V to 5.5V Output Voltage n 4A DC, 5A Peak Output Current Each Channel n Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink) n ±1.5% Total Output Voltage Regulation n Current Mode Control, Fast Transient Response n Parallelable for Higher Output Current n Output Voltage Tracking n Internal Temperature Sensing Diode Output n External Freque.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTM4644-LinearTechnology.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LTM4644 Quad DC/DC uModule Regulator Linear Technology
LTM4641 DC/DC uModule Regulator Linear Technology
LTM4642 Dual 4A or Single 8A DC/DC uModule Regulator Analog Devices
LTM4643 Ultrathin Quad uModule Regulator Analog Devices
LTM4645 25A DC/DC Step-Down uModule Regulator Analog Devices

Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LTM4618 6A DC/DC uModule Regulator
LTM4620 Dual 13A or Single 26A DC/DC uModule Regulator
LTM4628 Dual 8A or Single 16A DC/DC uModule Regulator
LTM2220-AA 170Msps ADC
LTM2885 RS485/RS422 uModule Transceiver + Power

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LTM4644/LTM4644-1 Quad DC/DC µModule Regulator with Configurable 4A Output Array FEATURES n Quad Output Step-Down µModule® Regulator with 4A per Output n Wide Input Voltage Range: 4V to 14V n 2.375V to 14V with External Bias n 0.6V to 5.5V Output Voltage n 4A DC, 5A Peak Output Current Each Channel n Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink) n ±1.5% Total Output Voltage Regulation n Current Mode Control, Fast Transient Response n Parallelable for Higher Output Current n Output Voltage Tracking n Internal Temperature Sensing Diode Output n External Frequency Synchronization n Overvoltage, Current and Temperature Protection n 9mm × 15mm × 5.