LDO Regulators feature start-up time of 160 µsec.
Press Release Summary:
Available in 6-pin, 2 x 2 mm SON package, Model TPS719xx is suited for mobile handsets, digital still cameras, and wireless LAN applications. Low-dropout linear regulators are stable with 1 µF ceramic capacitors, and utilize linear Bi-CMOS process technology to yield typical dropout voltage of 230 mV at 200 mA output loads. Low-noise units provide high PSRR over wide frequency range of up to 10 MHz, and consume total 90 µA ground current.
Original Press Release:
TI Introduces Smallest, Dual 200-mA LDOs for Portable Designs
2 mm x 2 mm Linear Regulators Simplify Power Design
with High PSRR and Fast Transient Response
DALLAS (April 13, 2007) - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a family of dual, 200-mA low-dropout linear regulators (LDOs) in a 2 mm x 2 mm SON package for portable, battery-powered equipment. The low-noise LDOs provide high power-supply rejection ratio (PSRR) over a wide frequency range of up to 10-MHz, fast 160-µs start-up time and excellent line and load transient response, while consuming a very low total 90-µA ground current with both LDOs enabled. See: www.ti.com/sc07076.
TI's new TPS719xx LDOs feature an active shutdown circuit to quickly discharge capacitors at the output voltage. Discharging the capacitors to zero during shutdown helps to manage power-up when sequencing applications. The TPS719xx devices are stable with ultra-small 1-µF ceramic capacitors, and leverage an advanced linear Bi-CMOS process technology to yield a typical dropout voltage of 230-mV at 200-mA output loads. The LDOs also use a precision voltage reference and feedback loop to achieve a three percent overall accuracy over all load, line, process and temperature variations.
The devices come in a 6-pin, 2 mm x 2 mm, SON package, which is targeted at portable applications, such as mobile handsets, digital still cameras and wireless LAN applications that require good thermal dissipation, while maintaining a small footprint.
Key Features of the TPS719xx family:
Dual 200-mA LDO regulators
Available in multiple fixed-output voltage combinations from 0.9 V to 3.6 V, using factory EEPROM programming in steps of 50 mV
Low total quiescent current: 90 µA with both LDOs enabled
PSRR: 65 dB at 1 kHz, 45 dB at 1 MHz
Three percent accuracy over line, load and temperature
Active output pulldown
Independent Enable for each LDO
Low dropout: 230 mV at 200 mA
Fast start-up time: 160 µS
Pricing and Availability
The TPS719xx family of LDOs is available today in volume from TI and its authorized distributors. Suggested retail pricing in 1,000-piece quantities is $0.75. Evaluation modules of the TPS719xx, design application notes and TI's new Power Management Selection Guide are available through power.ti.com.
About Texas Instruments
Texas Instruments Incorporated provides innovative DSP and analog technologies to meet our customers' real world signal processing requirements. In addition to Semiconductor, the company includes the Education Technology business. TI is headquartered in Dallas, Texas, and has manufacturing, design or sales operations in more than 25 countries.
Texas Instruments is traded on the New York Stock Exchange under the symbol TXN. More information is located on the World Wide Web at www.ti.com.
Please refer all reader inquiries to:
Texas Instruments Incorporated
Semiconductor Group, SC-07076
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