LP3997 Datasheet (Texas Instruments)

LP3997, CMOS LDO Regulator

The LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current.

The LP3997 provides 3.3V output at up to 250mA load current.

The chip architecture is capable of providing output voltages as low a

LP3997 Features

* 1

* 2 Low 140-mV Dropout at 250-mA Load

* Stable With Ceramic Capacitor.

* Low Noise With Bypass Capacitor

* Less Than 80 µA Typical IQ at 250 mA

* Virtually Zero IQ (Disabled)

* Thermal and Short Circuit Protection

* 3.3-V Output (1)