SC1457

The SC1457 is a low dropout linear regulator that operates from a +2.25V to +6.5V input range and delivers up to 150mA. A PMOS pass transistor allows the low 75µA supply current to remain independent of load, making these devices ideal for battery operated portable equipment such as cellular phones, cordless phones and personal digital assistants. The SC1457 has very low dropout voltage (typically 1.1mV at light loads and 150mV at 150mA) with better than 1.5% initial output voltage accuracy.

It has a logic compatible enable control input and an internal output undervoltage monitor. Designed especially for hand held, battery powered devices, the SC1457 can be switched by a CMOS or TTL compatible logic signal. When disabled, power consumption drops nearly to zero. Other features include short circuit protection, thermal shutdown protection and reverse battery protection.

The SC1457 is available in several fixed voltages in the tiny 5 lead SOT-23 package and the ultra low profile 5 lead TSOT-23.