The LTM4604 is a 4A current DC/DC power module that supports 0.8V to 5V output voltage. The working voltage range is 2.375V to 5.5V. The output current peak can reach 5A. It supports output voltage tracking and has overcurrent protection, overheating protection and soft start function.
The LTM4604 is a standalone, non‑isolated switch‑mode DC/DC power supply that delivers up to 4 A continuous (5 A peak) output current. It operates from a wide input voltage range of 2.375 V to 5.5 V and can be programmed to output voltages from 0.8 V to 5 V in a very low‑profile 15 mm × 9 mm × 2.3 mm LGA package.
The manual includes electrical characteristics, pin assignments, typical performance graphs, protection features such as current foldback and over‑temperature shutdown, and guidelines for input and output decoupling. It also lists related parts and ordering information.
| Input Voltage Range | 2.375 V to 5.5 V |
|---|---|
| Output Voltage Range | 0.8 V to 5 V |
| Efficiency | up to 95 % |
| Package Size | 15 mm × 9 mm × 2.3 mm LGA |
| Operating Temperature Range | -40 °C to 85 °C |
| Storage Temperature Range | 55 °C to 125 °C |
| Typical Input Supply Current (3.3 V) | 2.2 A |
The module operates from 2.375 V up to 5.5 V input voltage.
It provides current foldback protection, over‑temperature protection, and a power‑good indicator.
The output voltage is set by a single external resistor connected to the FB pin.
Yes, it includes a programmable soft‑start function.