TPS79530 Datasheet | Texas Instruments

Features - 1 500-m A low-dropout regulator with enable - Available in fixed and adjustable (1.2-V to 5.5-V) versions - High PSRR (50 d B at 10 k Hz) - Ultralow noise (33 µVRMS, TPS79530) - Fast start-up time (50 µs) - Stable with a 1-µF ceramic capacitor - Excellent load and line transient response - Low dropout voltage (110 m V at full load, TPS79530) - 6-pin SOT-223 and 3-mm × 3-mm VSON packages 2 Applications - RF: VCOs, receivers, ADCs - Audio - Bluetooth®, wireless LAN - Cellular and cordless telephones - Handheld organizers, PDAs 3 Description The TPS795 family of low-dropout (LDO), low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in small outline, 6-pin SOT-223 and 3-mm × 3-mm VSON packages. Each device in the family is stable with a small 1-µF ceramic capacitor on the output. The family uses an advanced, proprietary Bi CMOS fabrication process to yield extremely low dropout voltages (for example, 110 m V at 500 m A). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79530 device exhibits approximately 33 µVRMS of output voltage noise at 3V output with a 0.1-µF bypass capacitor. Applications with analog ponents that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features , as well as from the fast response time. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS795 SOT-223 (6) VSON (8) 6.50 mm × 3.50 mm 3.00 mm × 3.00 mm (1) For all available packages, see the package option addendum at the end of the data sheet. Ripple Rejection - d B Output Spectral Noise Density - m V/ÖHz TPS79530 Ripple Rejection vs Frequency 80 VIN = 4 V 70 COUT = 10m F CNR = 0.01m F IOUT = 1 m...