Home Power management Linear & low-dropout (LDO) regulators
Home
Power management
Linear & low-dropout (LDO) regulators

TPS7B88-Q1

ACTIVE

Automotive 500-mA, 40-V, low-dropout (LDO) linear regulator with fast transient response

Order now
Data sheet

TPS7B88-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Fixed Output Vout (max) (V) 18 Vout (min) (V) 1.2, 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 30.0, 30 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 1.15 Dropout voltage (Vdo) (typ) (mV) 390 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Fixed Output Vout (max) (V) 18 Vout (min) (V) 1.2, 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 30.0, 30 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 1.15 Dropout voltage (Vdo) (typ) (mV) 390 Operating temperature range (°C) -40 to 150
TO-252 (KVU) 3 66.726 mm² 6.6 x 10.11
  • 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
  • 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

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.

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.
filter Find other Linear & low-dropout (LDO) regulators
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS7B86-Q1 ACTIVE Automotive 500-mA, 40-V, ultra-low-IQ, low-dropout (LDO) linear regulator with power good Same performance with enable feature
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 6
Top documentation Type Title Format options Date
* Data sheet TPS7B88-Q1 500-mA, 40-V, Low-Dropout Regulator datasheet PDF | HTML 11 Jan 2021
Application note An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML 23 Sep 2025
Functional safety information TPS7B88-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 20 Mar 2024
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
E-book LDO Basics (Rev. A) 08 Apr 2019
Technical article LDO basics: dropout PDF | HTML 16 Mar 2017

Design & development

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

Evaluation board

MLTLDO2EVM-037 — Universal LDO linear voltage regulator evaluation module for DCY, DDA and KVU packages

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, (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7B88-Q1 PSpice Transient Model (3.3-V Output)

SBVM969.ZIP (6 KB) - PSpice Model
Download
Simulation model

TPS7B88-Q1 PSpice Transient Model (5-V Output)

SBVM968.ZIP (6 KB) - PSpice Model
Download
Package Pins CAD symbols, footprints & 3D models
TO-252 (KVU) 3 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

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

View all forum topics

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. ​​​​​​​​​​​​​​

Videos