Analog Devices Inc. LTM4668A/LTM4668 Four-Channel DC/DC µModule® Regulator

The Analog Devices LTM4668A and LTM4668 are four-channel DC/DC buck µModule® regulators whose outputs can be paralleled to form an array capable of delivering up to 4.8A of current. The package includes a switch controller, power FETs, inductors, and配套 components. The LTM4668A operates from an input voltage range of 2.7V to 17V and supports an output voltage range of 0.6V to 5.5V. It requires only bulk input and output capacitors. The device supports frequency synchronization, multiphase operation, optional Burst Mode operation, 100% duty cycle, and low IQ operation. With a high switching frequency and current mode architecture, the device can make very fast transient responses to voltage and load changes without affecting stability. Fault protection features include overvoltage, overcurrent, and overtemperature protection.

Fault protection features include overvoltage, overcurrent, and overtemperature protection. The power module is housed in a space-saving, thermally enhanced 6.25mm × 6.25mm × 2.1mm BGA package. The LTM4668A is available with SnPb (BGA) or RoHS-compliant terminal finishes.

Features

- Four-channel output buck µModule regulator that can deliver 1.2A per channel

- Wide input voltage range: 2.7V to 17V

- Output voltage: 0.6V to 5.5V

- 1.2A DC output current per channel, capable of paralleling

- ±1.5% total output voltage regulation

- 100% duty cycle operation

- Current mode control for fast transient response

- External frequency synchronization

- Optional Burst Mode® operation

- Power good indicator

- Overvoltage, overcurrent, and overtemperature protection

- 6.25mmx6.25mmx2.1mm BGA package

- Pin compatible with LTM4668 (0.6V to 1.8V output, 1MHz)

Applications

- Telecommunications, networking, and industrial equipment

- Multi-rail load point regulation

- FPGA, DSP, and ASIC applications