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TPS7A66-Q1

ACTIVE

Automotive 150-mA, off-battery (40-V), low-IQ, low-dropout voltage regulator with power good

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NEW TPS7E66-Q1 ACTIVE Automotive, 40V 150mA low-IQ (2.8µA) low-dropout LDO regulator with power good and delay Wider output voltage range, lower quiescent current, tighter accuracy and controlled quiescent current at dropout conditions

TPS7A66-Q1

ACTIVE
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Product details

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 4 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 3.3, 5 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.012 Features Enable, Power good Thermal resistance θJA (°C/W) 63 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 4 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 3.3, 5 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.012 Features Enable, Power good Thermal resistance θJA (°C/W) 63 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following:
    • Device Temperature Grade 1
    • Device Temperature Grade 0 (TPS7A6650EDGNRQ1 Only)
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4
  • Device Junction Temperature Range:
    –40°C to +150°C
  • 4-V to 40-V Wide Vin Input Voltage Range With up to 45-V Transient
  • Output Current: 150 mA
  • Low Quiescent Current, I(q):
    • 2 µA When EN = Low (Shutdown Mode)
    • 12 µA Typical at Light Loads
  • Low ESR Ceramic Output Stability Capacitor (2.2 µF–100 µF)
  • 300-mV Dropout Voltage at 150 mA
    (Typical, V(Vin) = 4 V)
  • Fixed (3.3-V and 5-V) and Adjustable
    (1.5-V to 5-V) Output Voltages
    (Adjustable for TPS7A66-Q1 Only)
  • Low Input Voltage Tracking
  • Integrated Power-On Reset:
    • Programmable Reset-Pulse Delay
    • Open-Drain Reset Output
  • Integrated Fault Protection:
    • Thermal Shutdown
    • Short-Circuit Protection
  • Input Voltage Sense Comparator
    (TPS7A69-Q1 Only)
  • Packages:
    • 8-Pin SOIC-D for TPS7A69-Q1
    • 8-Pin HVSSOP-DGN for TPS7A6601-Q1
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following:
    • Device Temperature Grade 1
    • Device Temperature Grade 0 (TPS7A6650EDGNRQ1 Only)
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4
  • Device Junction Temperature Range:
    –40°C to +150°C
  • 4-V to 40-V Wide Vin Input Voltage Range With up to 45-V Transient
  • Output Current: 150 mA
  • Low Quiescent Current, I(q):
    • 2 µA When EN = Low (Shutdown Mode)
    • 12 µA Typical at Light Loads
  • Low ESR Ceramic Output Stability Capacitor (2.2 µF–100 µF)
  • 300-mV Dropout Voltage at 150 mA
    (Typical, V(Vin) = 4 V)
  • Fixed (3.3-V and 5-V) and Adjustable
    (1.5-V to 5-V) Output Voltages
    (Adjustable for TPS7A66-Q1 Only)
  • Low Input Voltage Tracking
  • Integrated Power-On Reset:
    • Programmable Reset-Pulse Delay
    • Open-Drain Reset Output
  • Integrated Fault Protection:
    • Thermal Shutdown
    • Short-Circuit Protection
  • Input Voltage Sense Comparator
    (TPS7A69-Q1 Only)
  • Packages:
    • 8-Pin SOIC-D for TPS7A69-Q1
    • 8-Pin HVSSOP-DGN for TPS7A6601-Q1

The TPS7A66-Q1 and TPS7A69-Q1 are low-dropout linear regulators designed for up to 40-V Vin operations. With only 12-µA quiescent current at no load, they are quite suitable for standby microprocessor control-unit systems, especially in automotive applications.

The devices feature integrated short-circuit and overcurrent protection. The devices implement reset delay on power up to indicate the output voltage is stable and in regulation. One can program the delay with an external capacitor. A low-voltage tracking feature allows for a smaller input capacitor and can possibly eliminate the need of using a boost converter during cold-crank conditions.

The devices operate in the –40°C to 125°C temperature range. The TPS7A6650EDGNRQ1 device is qualified to AEC-Q100 grade 0, operating in the –40°C to 150°C temperature range. These features suit the devices well for power supplies in various automotive applications.

The TPS7A66-Q1 and TPS7A69-Q1 are low-dropout linear regulators designed for up to 40-V Vin operations. With only 12-µA quiescent current at no load, they are quite suitable for standby microprocessor control-unit systems, especially in automotive applications.

The devices feature integrated short-circuit and overcurrent protection. The devices implement reset delay on power up to indicate the output voltage is stable and in regulation. One can program the delay with an external capacitor. A low-voltage tracking feature allows for a smaller input capacitor and can possibly eliminate the need of using a boost converter during cold-crank conditions.

The devices operate in the –40°C to 125°C temperature range. The TPS7A6650EDGNRQ1 device is qualified to AEC-Q100 grade 0, operating in the –40°C to 150°C temperature range. These features suit the devices well for power supplies in various automotive applications.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS7A6x-Q1 High-Voltage Ultralow-I(q) Low-Dropout Regulator datasheet (Rev. F) PDF | HTML 19 Dec 2017
Product overview Low Quiescent Current LDOs for Battery Connected Automotive Systems (Rev. A) PDF | HTML 22 Apr 2026
Functional safety information TPS7A66-Q1 Functional Safety FIT Rate and Failure Mode Distribution 17 Dec 2019
Design guide EMC Compatible Automotive LED Rear Lamp Sequential-Turn Animation Design Guide 02 Jun 2016

Design & development

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

Evaluation board

TPS7A6650EVM — TPS7A6650 automotive 150-mA high-voltage ultra-low-IQ LDO regulator evaluation module

The TPS7A6650EVM evaluation module (EVM) lets you apply an input voltage from 4 V to 40 V to the input of the TPS7A6650-Q1 device under different loading conditions from 0 mA to 150 mA. The output, input, PG and switching wave can be monitored on the EVM.

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

TPS7A6601 PSpice Transient Model

SLVM788.ZIP (21 KB) - PSpice Model
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Simulation model

TPS7A6601-Q1 TINA-TI Transient Reference Design

SLVM922.TSC (94 KB) - TINA-TI Reference Design
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Simulation model

TPS7A6601-Q1 TINA-TI Transient Spice Model

SLVM923.ZIP (11 KB) - TINA-TI Spice Model
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Simulation model

TPS7A6633 PSpice Transient Model

SLVM729.ZIP (21 KB) - PSpice Model
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Simulation model

TPS7A6650-Q1 and TPS7A6650H-Q1 PSpice Transient Model

SLVM695.ZIP (21 KB) - PSpice Model
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Reference designs

PMP22334 — High efficiency, low-noise 5-V/3.3-V/1.8-V/1.1-V automotive display reference design

This reference design is for an automotive display application with a customized form factor. The design demonstrates the excellent thermal performance of LM61460-Q1 with its HotRod™ QFN package as well as the low EMI aided by its spread spectrum feature. It generates four (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-01372 — Automotive LED Front Lamp with Sequential Turn Animation Reference Design

This reference design is analog solution for automotive front lamp with sequential turn animation with the SEPIC topology, and this design also realizes full automotive diagnostic with low quiescent current during fault mode.
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HVSSOP (DGN) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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