Sales Information

Phone:(425) 353-3010

Fax: (425) 353-4030

SVPL3R306SG - 1.0

E-mail: vptsales@vptpower.com

Web: www.vptpower.com

Page 7

SVPL3R306SG Series

6.0 TECHNICAL NOTES

Please note that many of these functions are also demonstrated in detail on the VPT website in the

form of technical video labs.

6.1 GENERAL INFORMATION

6.1.1 Topology Description

The SVPL3R306SG is a non-isolated, fixed-frequency, radiation-hardened, synchronous buck

converter based on the Intersil ISL70001ASEH. It is optimized for low voltage point-of-load (POL) applications. The SVPL3R306SG

operates from a 3.1 to 5.5 V input and provides a stepped-down, precisely regulated, programmable output voltage at high efficiency.

6.1.2 Source Impedance

The impedance of the 3.3 V or 5 V source can interact with the POL converter and impact performance. High source impedance is

often caused by a long input cable or other components added in series with the input. In some cases, additional input capacitance will

be needed to stabilize the system.

6.1.3 Case Connection

The SVPL3R306SG case is connected to GND at a single point inside of the package.

6.2 FUNCTION DESCRIPTIONS

6.2.1 Enable (EN)

]

The enable circuit hysteresis is:

Ω, and the limits from the Performance

ability to disable the SVPL3R306SG is not necessary, connect EN to VIN. When EN is below its turn-on threshold, the internal power

MOSFETs are turned off, and the SVPL3R306SG power stage is in a high-impedance state.