The LTM4603HVIV is a complete 6A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The μModule™ is housed in a small surface mount 15mm × 15mm × 2.82mm LGA package. Operating over an input voltage range of 4.5 to 28V, the LTM4603HVIV supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 6A continuous current (8A peak). Only bulk input and output capacitors are needed to complete the design.
The low profile (2.82mm) and light weight (1.7g) package easily mounts on the unused space on the back side of PC boards for high density point of load regulation. The μModule can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase® operation for high load currents.
A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacrificing stability. An onboard remote sense amplifier can be used to accurately regulate an output voltage independent of load current.
Feature
- Complete Switch Mode Power Supply
- Wide Input Voltage Range: 4.5V to 28V
- 6A DC Typical, 8A Peak Output Current
- 0.6V to 5V Output Voltage
- Output Voltage Tracking and Margining
- Remote Sensing for Precision Regulation
- Typical Operating Frequency: 1MHz
- PLL Frequency Synchronization
- 1.5% Regulation
- Current Foldback Protection (Disabled at Start-Up)
- Pin Compatible with the LTM4601/LTM4601HV/LTM4603
- Ultrafast Transient Response
- Current Mode Control
- Up to 93% Efficiency at 5VIN, 3.3VOUT
- Programmable Soft-Start
- Output Overvoltage Protection
- RoHS Compliant Package with Gold Finish Pads (e4)
- Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA Package
Applications
- Telecom and Networking Equipment
- Servers
- Industrial Equipment
- Point of Load Regulation
(Picture: Pinout)
