A new series of 3A, ultra-low dropout linear regulators has been developed by Advanced Power Electronics Corp. The company advises its APE8968MP-HF3 range is designed to provide POL DC-DC conversion in board-level applications, including motherboard and notebook applications.
The ICs are said to require just two supply voltages – one for the control circuitry and the other for the main supply as a result the IC is said to reduce power consumption and provides a dropout of just 0.23V (typ) at 3A.
An integrated Power-On-Reset (POR) circuit monitors both supply voltages to prevent incorrect operation. Thermal shutdown and current limit protection features are included, and a POK indicates output status with a time delay which is set internally. This device can control another converter for power sequencing, and can also be controlled by another power system. Pulling and holding the EN pin below 0.4V shuts off the output
Ralph Waggitt, President/CEO, Advanced Power Electronics Corp. said:
The APE8968MP-HF3 provides very fast transient response. Low cost multilayer ceramic chip capacitors can be used on the output since ESR is low, and output voltages can be adjusted by simple use of external resistors.”
The device is available in a IC ESOP-8 package, which is said to be the same small size as an SO-8 device, but with an exposed pad to reduce the junction-to-case thermal resistance, making it suitable for 2-3W applications.
Advanced Power Electronics Corp
www.a-powerusa.com/docs/APE8968-3.pdf
