TPS7A88 LDO Voltage Regulator

TPS7A88 LDO Voltage Regulator

Texas Instruments' TPS7A88 is a dual, low-noise (3.8 µVRMS), 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 0.8 V to 5 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 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 and measurement applications. The very low 4 µVRMS 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.

Features
  • Two independent LDO channels
  • Low output noise: < 3.8 µVRMS (10 Hz to 100 kHz)
  • Low dropout: 200 mV (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 dB at DC
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
    • 1.0% accuracy over line, load, and temperature
Applications
  • High-speed analog circuits:
    • VCO, ADC, DAC, and LVDS
  • Imaging:
    • CMOS sensors, video ASICs
  • Test and measurement
  • Instrumentation, medical, and audio
  • Digital loads:
    • SerDes, FPGA, and DSP™
Manufacturer