LP5922, 2 A Adjustable LDO

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            LP5922,	2 A Adjustable LDO
                    Texas Instruments offers its LP5922, 2 A low-noise, adjustable LDO with low input- and output-voltage capability
    

Image of Texas Instruments' LP5922, 2 A Adjustable LDO Texas Instruments' LP5922 is 2 A low dropout (LDO) linear regulator with 200 mV typical dropout voltage at maximum current levels. The LP5922 device can operate from a voltage rail down to 1.3 V without additional bias supply. System efficiency is maximized and power dissipation minimized by the low dropout and low V_IN capability. The device also features low quiescent current and very low shutdown current.

The LP5922 device was designed to have high PSRR and low output noise to support sensitive analog applications without additional filtering. The output noise can be reduced even further by implementing a small capacitor on the SS/NR pin.

The output voltage is adjustable from 0.5 V to 5 V by an external resistor divider. Enable pin, adjustable soft start, and optional Power Good features help with system power sequencing. Inrush current is controlled with the soft start and the device has short circuit and thermal protections.

Features
Wide input voltage range: 1.3 V to 6 V Low V_IN voltage without extra bias voltage Adjustable output voltage: 0.5 V to 5 V Low dropout: 200 mV at 2 A load Low output voltage noise: 25 μV_RMS Output current: 2 A -40˚C to +125°C operating junction temperature		Programmable soft start limits inrush current 3 mm x 3 mm x 0.75 mm 10-pin WSON package Thermal-overload and short-circuit protection Output voltage tolerance: ±1.5% Shutdown supply current: 0.1 μA PSRR: 70 dB at 1 kHz Power good output
Applications
Target sectors Medical, test, and measurement equipment Portable and consumer electronics Telecom and networking cards Wireless infrastructure Industrial applications		Space-constrained applications Noise- and ripple-sensitive high current analog or RF systems Typical systems Radio transceivers, power amplifiers, PLL/synthesizer, clocking, VCO, GPRS, 3G modules, FPGAs, DSP, GPUs, and others