LTM4644IY DC/DC μModule Regulator: Circuit, Pinout, and Datasheet

The LTM4644IY is a four-output quad DC/DC  step-down regulator with 4A per output.

Up to 16A can be achieved by paralleling outputs in an array. Switching controllers, powerFETs, inductors, and support components are all included in the package. The LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V and operates over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply. Its high efficiency design provides a continuous output current of 4A (5A peak) per channel. It's only necessary to use bulk input and output capacitors.

The followings are LTM4644IY Symbol, Footprint and 3D Model.

Symbol

Footprint

3D Model

• Quad Output Step-Down µModule® Regulator with 4A per Output

• Wide Input Voltage Range: 4V to 14V

—2.375V to 14V with External Bias

• 0.6V to 5.5V Output Voltage

• 4A DC, 5A Peak Output Current Each Channel

• Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink)

• ±1.5% Total Output Voltage Regulation

• Current Mode Control,  Fast Transient Response 

• Parallelable for Higher Output Current

• Output Voltage Tracking

• Internal Temperature Sensing Diode Output

• External Frequency Synchronization

• Overvoltage, Current and Temperature Protection

• 9mm × 15mm × 5.01mm BGA Package

Linear Technology/Analog Devices LTM4644IY technical specifications, attributes, parameters and parts with similar specifications to Linear Technology/Analog Devices LTM4644IY.

The followings are LTM4644IY Typical Applications.

4V to 14V Input, Quad 1.2V, 1.5V, 2.5V and 3.3V Output with Tracking

2.375V to 5V Input, Quad 1V, 1.2V, 1.5V, 1.8V Output

4V to 14V Input, 4-Phase, 1.2V at 16A Design with Temperature Monitoring

12V and 5V Two Separate Input Rails, 1.2V at 8A and 3.3V at 8A Output

LTM4644-1 Together with LTC2975, 4.5V to 14V Input, 3.3V, 2.5V, 1.5V, 1V Output at 4A Each with Input and Output Voltage, Current and Temperature Telemetry

• Multirail Point of Load Regulation

• FPGAs, DSPs and ASICs Applications

For three decades, Linear Technology Corporation, an S&P 500 company, has designed, manufactured, and marketed a broad array of high-performance analog integrated circuits for major firms throughout the world. In communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, military, and aerospace systems, the Company's products provide an important bridge between our analog world and digital electronics. Power management, data conversion, signal conditioning, RF and interface ICs, Module subsystems, and wireless sensor network devices are all made by Linear Technology.