Linear Technology Supplier Page

LTM4615 Series


Linear Technology and Digi-Key Introduce a Triple Output DC/DC µModule Regulator

Linear Technology LTM4615Linear Technology's LTM4615 is a complete 4A dual output switching mode DC/DC power supply plus an additional 1.5A VLDO (very low dropout) linear regulator. Included in the package are the switching controllers, power FETs, inductors, a 1.5A regulator and all support components. The dual 4A DC/DC converters operate over an input voltage range of 2.375V to 5.5V, and the VLDO operates from a 1.14V to 3.5V input. The LTM4615 supports output voltages ranging from 0.8V to 5V for the DC/DC converters and 0.4V to 2.6V for the VLDO. The three regulator output voltages are set by a single resistor for each output. Only bulk input and output capacitors are needed to complete the design.

The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing.

 
Applications:
  • Telecom and networking equipment
  • Industrial power systems
  • Low noise applications
  • FPGA, SERDES power

 
Features
  • Dual 4A output power supply with 1.5A VLDO™
  • Short-Circuit and over-temperature protection
  • Power good indicators
RoHS Compliant
Switching Regulators Section - Current Mode Control
  • Input voltage range: 2.375V to 5.5V
  • 4A DC typical, 5A peak output current each
  • 0.8V up to 5V output each, parallel-able
  • ±2% total DC output error
  • Output voltage tracking
  • Up to 95% efficiency
  • Programmable soft-start
VLDO Section
  • VLDO, 1.14V to 3.5V input range
  • VLDO, 0.4V to 2.6V, 1.5A output
  • VLDO, 40dB supply rejection at fsw
  • ±1% total DC output error
  • Small and very low profile package
  • 15mm x 15mm x 2.82mm

Digi-Key Part Number Linear Technology Part Number Description Package Datasheet
LTM4615EV#PBF-ND LTM4615EV#PBF IC SWIT REG BUCK 4A ADJ 144LGA 144-LGA Datasheet
LTM4615IV#PBF-ND LTM4615IV#PBF IC SWIT REG BUCK 4A ADJ 144LGA 144-LGA Datasheet