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DESCRIPTION

The LTM?4652 is a source/sink dual ¡À25A or single ¡À50A

output switching mode step-down DC/DC ¦ÌModule?

(micromodule) regulator with ¡À1.5 total DC output

error. Included in the package are the switching controllers,

power MOSFETs, inductors and all supporting

components. Operating from an input voltage range of

4.5V to 18V, the LTM4652 supports two outputs with an

output voltage range of 0.6V to 7.5V, each set by a single

external resistor. Its high efficiency design delivers up to

¡À25A continuous current for each output. Only a few input

and output capacitors are needed. Adjustable control loop

compensation allows for fast transient response to minimize

output capacitance when powering FPGAs, ASICs,

and processors.

Fault protection features include input and output overvoltage

and bidirectional overcurrent protection. The

LTM4652 is offered in a 16mm ¡Á 16mm ¡Á 4.92mm BGA package.

FEATURES

- Dual ¡À25A or Single ¡À50A Output Source/Sink

- Input Voltage Range: 4.5V to 18V (20V Abs Max)

- Output Voltage Range: 0.6V to 7.5V (8V Abs Max)

- ¡À1.5 Maximum Total DC Output Error Over Line, Load and Temperature

- Adjustable Control Loop Compensation

- Differential Remote Sense Amplifier

- Current Mode Control/Fast Transient Response

- Multiphase Parallel Current Sharing Up to ¡À300A

- Internal Temperature Monitor

- Adjustable Switching Frequency or Synchronization

- Overcurrent Foldback Protection

- Selectable Pulse-Skipping Mode Operation

- Soft-Start/Voltage Tracking

- Input and Output Overvoltage Protection

- 16mm ¡Á 16mm ¡Á 4.92mm BGA Package

APPLICATIONS

- Test and Measurement Instrumentation

- Telecom and Networking Equipment

- Industrial Equipment