TPS7A88 Datasheet | Texas Instruments

res - 1 Two Independent LDO Channels - Low Output Noise: < 3.8 µVRMS (10 Hz- 100 k Hz) - Low Dropout: 200 m V (Max) at 1 A - Wide Input Voltage Range: 1.4 V to 6.5 V - Wide Output Voltage Range: 0.8 V to 5.0 V - High Power-Supply Ripple Rejection: - 75 d B at DC - 40 d B at 100 k Hz - 40 d B at 1 MHz - 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-µF 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: Ser Des, FPGA, DSP™ 3 Description The TPS7A88 is a dual, low-noise (3.8 µVRMS), lowdropout (LDO) voltage regulator capable of sourcing 1 A per channel with only 200 m V 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 0.8 V to 5.0 V. The TPS7A88 wide input-voltage range supports operation as low as 1.4 V and up to 6.5 V. With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce inrush 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 fieldprogrammable gate arrays (FPGAs)]. The TPS7A88 is designed to power up noisesensitive ponents such as those found in highspeed munication, video, medical, or test and measurement applications. The very low 4-µVRMS output noise and wideband PSRR (40 d B at 1 MHz) minimizes phase noise and clock jitter. These Features maximize performance of clocking devices, ADCs, and DACs. Device...