Texas Instruments Announces TPS799xx Series LDOs
Texas Instruments Inc. (TI, Dallas, TX) announced its new TPS799xx Series of 200 mA low-dropout linear regulators (LDOs) in a 1.5 mm x 1 mm chip-scale package. The low-noise LDOs meet the power-management requirements of third-generation handsets that feature noise-sensitive Bluetooth, RF and high-resolution camera circuitry, including advanced smart camera phones based on TI’s OMAP™ processors.
The new TPS799xx LDOs deliver 29.6 µV(RMS) of output noise and provide a power supply rejection ratio of 66 dB at 1 kHz to minimize noise. The devices also offer a fast startup time of 45 µsec and transient response while consuming only 40 µA (typical) of supply current. The TPS799xx family is stable with a small, 2.2 µF ceramic capacitor, and can yield dropout voltages as low as 100 mV at 200 mA over the entire range of input voltages. In addition, the devices use a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line and temperature variations.
The TPS799xx family of LDOs is available now in volume. The devices come in a reliable, five-pin, wafer chip-scale (1.5 mm x 1 mm) package and a five-pin TSOT23 package. All TPS799xx devices are priced at $0.35 each in quantities of 1,000 units.
