This document describes the features and performance of the LTM4605 and LTM4607 μModule™ buck-boost regulators. These regulators have features such as high efficiency, compact size, high performance, and exceptional thermal performance.
The LTM4605 and LTM4607 are high-efficiency switch-mode buck-boost power supply modules designed for applications requiring an output voltage within the input range. These devices utilize a 4-switch topology to achieve efficiencies of up to 98% while saving board space, requiring only one external inductor and a single sensing resistor for operation.
| Input Voltage Range (LTM4605) | 4.5V to 20V |
|---|---|
| Output Voltage Range (LTM4605) | 0.8V to 16V |
| Input Voltage Range (LTM4607) | 4.5V to 36V |
| Output Voltage Range (LTM4607) | 0.8V to 16V |
| Continuous Current (Boost Mode) | 5A |
| Continuous Current (Buck Mode) | 12A |
| Package Dimensions | 15mm x 15mm x 2.8mm |
These regulators are ideal for automotive, telecom, medical, motor drive and battery-powered applications.
The design requires only one inductor, a single sensing resistor, and bulk input and output capacitors.
The device can provide up to 5A continuous current when operating in boost mode.
In a buck-only configuration, the load current can be increased up to 7 A at 12V OUT.