Integrated switch rated 4.5A and 16 mΩ, with reverse current blocking

July 03, 2015 // By Graham Prophet
Silego’s SLG59M1603V is a dual-channel, high-performance integrated power switch which adds reverse-current blocking to prior features of the range. It prevents power flow from load to source in low-voltage power-rail distribution, power-rail sequencing, or other two-power-rail applications.

The SLG59M1603V operates from 2.5 to 5V: using silego’s CuFET technology, it is designed to handle continuous load currents up to 4.5A per channel in a small footprint TDFN package. With internal charge pumps, output discharge circuitry, and separate ON/OFF controls, both channels of the SLG59M1603V are completely independent of each other. As a result, each channel of this highly-integrated power switch can be configured for different power-rail applications without affecting the operation of the opposite channel.

Both channels can be combined in parallel for higher-current applications up to the total power dissipation of the package or up to 8.5 A, whichever is lower. In a 14-pin 1.0 x 3.0 mm STDFN package, the SLG59M1603V is fully specified from -40°C to 85°C.

Specifications include:

Ultra-low R DS(ON): 16 mΩ per channel

Continuous load current: up to 4.5A per channel

VDD supply voltage range: 2.5 to 5.5V

Wide power-rail voltage range: 1V to V DD

Low reverse-current leakage when OFF: 0.5 µA

Adjustable in-rush current/V OUT slew rate control via external capacitor

Over-temperature protection

Low operating supply current: 50 µA

Low-supply current when OFF: 1 µA

Fast, internal discharge

Target applications include power-rail sequencing and two-rail power multiplexing