BSM400GA120DLCHOSA1  Description

The TPS796xx family of low-dropout (LDO) low-power linear voltage regulators features a high power supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in small outline, 3. 3 SON, SOT223-6, and DDPAK-5 packages. Each device in the family is stable with a small 1∞F ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (e.g. 250mV at 1A). Each device achieves fast start-up times (approximately 50xs with a 0.001xF bypass capacitor) while consuming very low quiescent current (265 ∞A typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 10A. The TPS79630 exhibits approximately 40xVpus of output voltage noise at 3.0V output, with a 0.1∞F bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and fast response time.

BSM400GA120DLCHOSA1  Features

1A Low-Dropout Regulator With Enable

Available in Fixed and Adjustable (1.2V to

5.5V) Versions

High P SRR (53dB at 10kHz)

Ultralow-Noise (40xVRNMS0 TP S79630)

Fast Start-Up Time (50∞s)

Stable With a 1∞F Ceramic Capacitor

Excellent Load/Line Transient Response

Very Low Dropout Voltage (250mV at Full

Load, TP S79630)

3.3 SON, SOT223-6, and

DDPAK-5 Packages

BSM400GA120DLCHOSA1  Applications

RF: VCOs, Receivers, ADCs

Audio

Bluetooth", Wireless LAN

Cellular and Cordless Telephones

Handheld Organizers, PDAs