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Automotive Dual 1A Low-Noise (4μVRMS) LDO Voltage Regulator


Package | PIN: RTJ | 20
Temp: S (-40 to 140)
Carrier: Cut Tape
Qty Price
1-9 $4.09
10-24 $3.68
25-99 $3.44
100-249 $3.08
250-499 $2.88
500-749 $2.50
750-999 $2.17
1000+ $2.12


  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 1: –40°C ≤ TA ≤+125°C
    • HBM ESD Classification Level 2
    • CDM ESDClassification Level C5
  • Two Independent LDO Channels
  • Low Output Noise: 4 µVRMS (10 Hz to 100 kHz)
  • Low Dropout: 230 mV (Maximum) at 1 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • Wide Output Voltage Range: 0.8 V to 5.15 V
  • High Power-Supply Ripple Rejection:
    • 70 dB at 100 Hz
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
  • 1% Accuracy Over Line, Load, and Temperature
  • Excellent Load Transient Response
  • Adjustable Start-Up Inrush Control
  • Selectable Soft-Start Charging Current
  • Independent Open-Drain Power-Good (PG) Outputs
  • Stable With a 10-µF or Larger Ceramic Output Capacitor
  • Low Thermal Resistance: RθJA = 39.8°C/W
  • 4-mm × 4-mm Wettable Flank WQFN Package

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Texas Instruments  TPS7A8801QRTJRQ1

The TPS7A88-Q1 is a dual, low-noise (4 µVRMS),low-dropout (LDO) voltage regulator capable of sourcing 1 A per channel with 250 mV of maximumdropout.

The TPS7A88-Q1 provides the flexibility of two independent LDOs and approximately 50%smaller solution size than two single-channel LDOs. Each output is adjustable with externalresistors from 0.8 V to 5.15 V. The TPS7A88-Q1 wide input-voltage range supports operation as lowas 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-startcapabilities to reduce in-rush current, the TPS7A88-Q1 is ideal for powering sensitive analoglow-voltage devices (such as voltage-controlled oscillators [VCOs], analog-to-digital converters[ADCs], digital-to-analog converters [DACs], high-end processors, and field-programmable gatearrays [FPGAs]).

The TPS7A88-Q1 is designed to power noise-sensitive components such as those found in RF,radar communications, and telematic applications. The low 4-µVRMS outputnoise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These featuresmaximize performance of clocking devices, ADCs, and DACs. The TPS7A88-Q1 features wettable flanksfor simple optical inspection.