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Product details

Parameters

Output options Adjustable Output, Dual Output Iout (Max) (A) 1 Vin (Max) (V) 6.5 Vin (Min) (V) 1.4 Vout (Max) (V) 5.15 Vout (Min) (V) 0.8 Noise (uVrms) 3.8 Iq (Typ) (mA) 2.1 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (Min) (µF) 10 Rating Automotive Regulated outputs (#) 2 Features Enable, Foldback Overcurrent Protection, Output Discharge, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 130 Operating temperature range (C) -40 to 140 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

WQFN (RTJ) 20 16 mm² 4 x 4 open-in-new Find other Linear regulators (LDO)

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

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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.

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Technical documentation

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Type Title Date
* Datasheet TPS7A88-Q1 Automotive, Dual, 1-A, Low-Noise (4 µVRMS) LDO Voltage Regulator datasheet (Rev. A) Sep. 15, 2017
Application notes TPS7A88-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 17, 2019
Application notes A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Selection guides Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
More literature Fundamentals of designing with LDOs in auto battery direct connect applications Feb. 27, 2017
User guides TPS7A88 Evaluation Module User's Guide Dec. 09, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$29.00
Description

The TPS7A8801EVM-776 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A8801, dual 1-A low dropout voltage regulator.
The EVM circuit board is configured to be a reference design for engineering applications requiring current to a dynamic (...)

Features
  • Two Independent LDOs in one package
  • Low Output Noise: <5 µVRMS [10Hz - 100kHz]
  • Low Dropout: 200 mV Max at 1 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • High Power-Supply Ripple Rejection: 50 dB at 1 MHz

Design tools & simulation

SIMULATION MODELS Download
SBVM553.ZIP (88 KB) - PSpice Model
SIMULATION MODELS Download
SBVM554.ZIP (3 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
QFN (RTJ) 20 View options

Ordering & quality

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