Vishay Debuts SiP21301 LDO Controller with Adjustable, Fixed Outputs

Vishay Intertechnology, Inc. (NYSE: VSH) released an LDO controller with adjustable and fixed output voltage options that uses external n-channel MOSFETs to provide extremely low drop-out voltages of under 50 mV at very high currents, up to 7 A, with 80% efficiency.

The SiP21301 device is optimized for driving n-channel MOSFETs to power FPGAs, ASICs, and ASSPs in game consoles, set-top boxes, LCD televisions, and networking equipment. Because it works with an external n-channel MOSFET with a separate supply voltage, the SiP21301 allows designers to choose the FET with the on-resistance, drop-out voltage, output current, and power dissipation ratings that best suit their applications, operating from 2.5 V down to 0.65 V at up to 7 A. The 80% efficiency of the SiP21301 solution helps to reduce energy consumption in end products while simplifying the design of dc-to-dc converters.

Designed to maintain regulation while delivering 7-A peak current, the new SiP21301 is ideal for systems that have a high surge current upon turn-on and very low drop-out voltage requirements. The SiP21301 features programmable inrush current protection on start-up, short-circuit protection, thermal shutdown, and undervoltage lockouts for safe operation of the IC and the external MOSFET.

The controller offers an adjustable output voltage, as well as fixed 1.2-V and 1.5-V output voltage options. The device provides a low operating current, a low standby current, and a 1% output voltage accuracy.

The SiP21301 is available in the compact, lead (Pb)-free MSOP8 package and operates over a -40 degrees Celsius to +125 degrees Celsius junction temperature range.

Samples and production quantities of the new SiP21301 LDO controller are available now, with lead times of 8 to 12 weeks for initial orders.

About Vishay Intertechnology
Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world’s largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide “one-stop shop” service have made Vishay a global industry leader.