Product details


Output options Fixed Output Iout (Max) (A) 0.5 Vin (Max) (V) 40 Vin (Min) (V) 3 Vout (Max) (V) 5 Vout (Min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (uVrms) 280 Iq (Typ) (mA) 0.017 Thermal resistance θJA (°C/W) 30 Load capacitance (Min) (µF) 2.2 Rating Automotive Regulated outputs (#) 1 Accuracy (%) 1.15 PSRR @ 100 KHz (dB) 65 Dropout voltage (Vdo) (Typ) (mV) 390 Operating temperature range (C) -40 to 125, -40 to 150 open-in-new Find other Linear & low-dropout (LDO) regulators

Package | Pins | Size

TO-252 (KVU) 3 67 mm² 6.6 x 10.11 open-in-new Find other Linear & low-dropout (LDO) regulators


  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range: 3.3 V and 5 V (fixed)
  • Maximum output current: 500 mA
  • Output voltage accuracy: ±1.15% (max)
  • Low dropout voltage:
    • 525 mV (max) at 450 mA
  • Low quiescent current:
    • 17 µA (typ) at light loads
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µs VIN slew rate)
  • Stable with a 2.2-µF or larger capacitor
  • Package 3-pin TO-252: (RθJA): 30°C/W
open-in-new Find other Linear & low-dropout (LDO) regulators


The TPS7B88-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dump) that are anticipated in automotive systems. With only a 17-µA quiescent current at light loads, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±1.15% over line, load, and temperature.

The device is available in thermally conductive packaging to allow the parts to efficiently transfer heat to the circuit board.

open-in-new Find other Linear & low-dropout (LDO) regulators
Similar products you might be interested in
open-in-new Compare products
Same functionality with different pin-out to the compared device.
NEW TPS7B86-Q1 ACTIVE Automotive 500-mA, 40-V, ultra-low-IQ, low-dropout (LDO) linear regulator with power good Same performance with enable feature
NEW TPS7B87-Q1 ACTIVE Automotive 500-mA, 40-V, low dropout (LDO) regulator with power good Same performance with power good and delay features

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet TPS7B88-Q1 500-mA, 40-V, Low-Dropout Regulator datasheet Jan. 11, 2021
User guide MLTLDO2EVM-037 Evaluation Module User's Guide May 22, 2020

Design & development

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

Hardware development

document-generic User guide

The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU (...)

  • Supports most LDO linear regulators in
    • DDA package
    • 3-pin and 5-pin KVU package
    • DCY package

Design tools & simulation

SBVM968.ZIP (6 KB) - PSpice Model
SBVM969.ZIP (6 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
TO-252 (KVU) 3 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​