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Automotive 1-A, low-noise, high-accuracy, dual-channel adjustable low-dropout voltage regulator

TPS7A8801QRTJRQ1 General Description

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 maximum dropout.

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 external resistors from 0.8 V to 5.15 V. The TPS7A88-Q1 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-Q1 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-Q1 is designed to power noise-sensitive components such as those found in RF, radar communications, and telematic applications. The 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. The TPS7A88-Q1 features wettable flanks for simple optical inspection.

Key Features

  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification 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


Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear Series Automotive, AEC-Q100
Output Configuration Positive Output Type Adjustable
Number of Regulators 2 Voltage - Input (Max) 6.5V
Voltage - Output (Min/Fixed) 0.8V Voltage - Output (Max) 5.15V
Voltage Dropout (Max) 0.225V @ 1A Current - Output 1A
Current - Quiescent (Iq) 3.5 mA Current - Supply (Max) 4 mA
PSRR 40dB (500kHz) Control Features Enable, Power Good, Soft Start
Protection Features Over Current, Over Temperature, Under Voltage Lockout (UVLO) Operating Temperature -40°C ~ 140°C (TJ)
Mounting Type Surface Mount Base Product Number TPS7A8801

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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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Ratings and Reviews

L**m 08/29/2023

The packing wasnt the best, but otherwise its working perfectly!

H**t 08/14/2023

Order received, 5 pcs. All the whole, checked quickly all the blocks work. The battery goes 4.12 v. After operation, i will add a tip.

L**e 07/22/2023

works very well. thank you.



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TPS7A8801QRTJRQ1 Datasheet PDF

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