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TPS7B88-Q1

ACTIVE

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

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Data sheet

TPS7B88-Q1

ACTIVE
Data sheet Order now

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 Rating Automotive Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 30.0 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
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 Rating Automotive Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 30.0 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.
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Technical documentation

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Type Title Date
* Data sheet TPS7B88-Q1 500-mA, 40-V, Low-Dropout Regulator datasheet PDF | HTML 11 Jan 2021
Functional safety information TPS7B88-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 20 Mar 2024

Design & development

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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
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Simulation model

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

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

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

SBVM968.ZIP (6 KB) - PSpice Model
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TO-252 (KVU) 3 Ultra Librarian
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