1 Features
· Two Independent LDO Channels
· Low Output Noise:<3.8uVMS(10Hz-100kHz)
· Low Dropout:200mV(Max) at1A
· Wide Input Voltage Range:1.4V to 6.5V
· Wide Output Voltage Range:0.8 Vto 5.0V
· High Power-Supply Ripple Rejection:
-75 dB at DC
-40dB at 100kHz
-40dBat 1MHz
·1.0% Accuracy Over Line, Load, and Temperature
· Excellent Load Transient Response
· Adjustable Start-Up In-Rush Control
· Selectable Soft-Start Charging Current
· Independent Open-Drain Power-Good(PG) Outputs
· Stable with a 10-uF or Larger Ceramic Output Capacitor

·4-mm×4-mm,20-Pin WQFN Package

 2 Applications

· High-Speed Analog Circuits:-VCO, ADC, DAC, LVDS
· Imaging: CMOS Sensors, Video ASICs
· Test and Measurement
· Instrumentation, Medical, and Audio

· Digital Loads: SerDes, FPGA, DSPTM

3 Description 

The TPS7A88 is a dual, low-noise (3.8 uVaus), low-dropout(LDO) voltage regulator capable of sourcing 1 A per channel with only 200 mV of maximum dropout.
The TPS7A88 provides the flexibility of two independent LDOs and approximately 50% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8V to 5.0 V. The TPS7A88 wide input-voltage range supports operation as low as 1.4 V and up to 6.5V. With 1% output voltage accuracy(over line, load, and re temperature) and soft-start capabilities to reduce in-rush current, the TPS7A88 is ideal for powering sensitive analog low-voltage devices [ such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters(DACs), high-end processors, and field-programmable gate arrays(FPGAs)].
The TPS7A88 is designed to power up noise-sensitive components such as those found in high-speed communication, video, medical, or test andmeasurement applications. The very low 4-uVRMs output noise and wideband PSRR(40 dB at 1 MHz)minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.