Switching regulator features minimum quiescent current

March 19, 2012 // By Paul Buckley
GAPTEC Electronic has unveiled a non-isolated and surface mount SIP3 switching regulator with a minimum quiescent current of 6 mA. The LC78 is a so-called 'drop-in' switching regulator which is pin-compatible with the classical LM78 linear regulator and makes a heat sink unnecessary. Therefore the use of the LC78 provides a lot of space on the PCB board. The GAPTEC product development managed to achieve an unrivaled efficiency of 95% and at the same time small housing dimensions (L x W x H = 11.6 x 6.0 x 10.2 mm).

The controller is continuous short circuit protected (SCP) and has a max. 30 mV p-p ripple and noise at 20 MHz bandwidth. The temperature range is -40 to +85°C (without derating 75°C). Input voltage range: 4.75 to 28 VDC (3.3 VDC type) and 6.8 to 28 VDC (5 VDC type). The product warranty is 3 years. This switching regulator series has been developed as an alternative to discrete solutions.