The LTM4645EY#PBF is a 25A output switching mode step-down DC/DC µModule® (power module) regulator. Included in the package are the switching controller, power FETs, inductor and all supporting components. Operating over an input voltage range of 4.7V to 15V, the LTM4645EY#PBF supports an output voltage range of 0.6V to 1.8V, set by a single external resistor. Only a few input and output capacitors are needed.
Its high efficiency design delivers about 86% efficiency from 12V input to 1.0V output with 25A continuous load current. High switching frequency and a current-mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, programmable multiphase operation, N+1 phase redundancy, and output voltage tracking for supply rail sequencing.
Fault protection features include overvoltage and overcurrent protection. The power module is offered in a space saving 9mm × 15mm × 3.51mm BGA package. The LTM4645EY#PBF is available with SnPb (BGA) or RoHS compliant terminal finish.
Feature
- 4.7V to 15V Input Voltage Range
- 0.6V to 1.8V Output Voltage Range
- 25A DC Output Current
- 1.2% Total DC Output Voltage Error (–40°C to 125°C)
- High Reliability N + 1 Phase Redundancy Supported
- Internal or External Control Loop Compensation
- Differential Remote Sense Amplifier for Precision Regulation
- Current Mode Control/Fast Transient Response
- Multiphase Current Sharing Up to 150A
- Built-In Temperature Monitoring
- Selectable Pulse-Skipping, Burst Mode® Operation
- Soft-Start/Voltage Tracking
- Frequency Synchronization
- Output Overvoltage Protection
- Output Overcurrent Foldback Protection
- 9mm × 15mm × 3.51mm BGA Package
Applications
- Telecom, Networking and Industrial Equipment
- Point of Load Regulation
