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TPS7A63-Q1

ACTIVE

Automotive 300-mA, off-battery (40-V), low-IQ, low-dropout voltage regulator with watchdog timer

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Data sheet

TPS7A63-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 11 Iout (max) (A) 0.3 Output options Adjustable Output, Fixed Output Vout (max) (V) 7 Vout (min) (V) 2.5 Fixed output options (V) 3.3, 5 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.035 Features Enable, Foldback Overcurrent protection, Power good, Watchdog timer Thermal resistance θJA (°C/W) 37 Load capacitance (min) (µF) 1 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) 11 Iout (max) (A) 0.3 Output options Adjustable Output, Fixed Output Vout (max) (V) 7 Vout (min) (V) 2.5 Fixed output options (V) 3.3, 5 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.035 Features Enable, Foldback Overcurrent protection, Power good, Watchdog timer Thermal resistance θJA (°C/W) 37 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 14 32 mm² 5 x 6.4 VSON (DRK) 10 12 mm² 4 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
    • Junction Temperature: –40°C to 150°C, TJ
  • Low dropout voltage:
    • 300 mV at IOUT = 150 mA
  • 7-V to 40-V wide input-voltage range with up to 45-V transients
  • 300-mA maximum output current
  • Ultralow quiescent current:
    • IQUIESCENT = 35 µA (typical) at light loads
    • ISLEEP < 2 µA when EN = low
  • Fixed (3.3-V and 5-V) and adjustable (2.5-V to
    7-V) output voltages
  • Integrated watchdog with fault/flag
  • Stable with low-ESR ceramic output capacitor
  • Integrated power-on reset:
    • Programmable delay
    • Open-drain reset output
  • Integrated fault protection:
    • Short-circuit and overcurrent protection
    • Thermal shutdown
  • Low input-voltage tracking
  • Thermally enhanced 14-pin HTSSOP-PWP package and 10-pin VSON-DRK package
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
    • Junction Temperature: –40°C to 150°C, TJ
  • Low dropout voltage:
    • 300 mV at IOUT = 150 mA
  • 7-V to 40-V wide input-voltage range with up to 45-V transients
  • 300-mA maximum output current
  • Ultralow quiescent current:
    • IQUIESCENT = 35 µA (typical) at light loads
    • ISLEEP < 2 µA when EN = low
  • Fixed (3.3-V and 5-V) and adjustable (2.5-V to
    7-V) output voltages
  • Integrated watchdog with fault/flag
  • Stable with low-ESR ceramic output capacitor
  • Integrated power-on reset:
    • Programmable delay
    • Open-drain reset output
  • Integrated fault protection:
    • Short-circuit and overcurrent protection
    • Thermal shutdown
  • Low input-voltage tracking
  • Thermally enhanced 14-pin HTSSOP-PWP package and 10-pin VSON-DRK package

The TPS7A63-Q1 and TPS7A6401-Q1 are a family of low-dropout linear voltage regulators designed for low power consumption and quiescent current less than 35 µA in light-load applications. These devices, designed to achieve stable operation even with a low-ESR ceramic output capacitor, feature an integrated programmable window watchdog and overcurrent protection. Designers can program the output voltage using external resistors. 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 power-on-reset delay is fixed (250 µs typical), or an external capacitor can program the delay. Because of such features, these devices are well-suited in power supplies for various automotive applications.

The TPS7A63-Q1 and TPS7A6401-Q1 are a family of low-dropout linear voltage regulators designed for low power consumption and quiescent current less than 35 µA in light-load applications. These devices, designed to achieve stable operation even with a low-ESR ceramic output capacitor, feature an integrated programmable window watchdog and overcurrent protection. Designers can program the output voltage using external resistors. 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 power-on-reset delay is fixed (250 µs typical), or an external capacitor can program the delay. Because of such features, these devices are well-suited in power supplies for various automotive applications.
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Technical documentation

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Type Title Date
* Data sheet TPS7A63-Q1, TPS7A6401-Q1 300-mA, 40-V, Low-Dropout Regulator With Ultra-Low IQ datasheet (Rev. G) PDF | HTML 11 Feb 2020
Application note TPS7A63xx-Q1 Configuration to Achieve Long-Reset Pulse Width When the Watchdog D 19 May 2014
EVM User's guide TPS7A63xxEVM User's Guide 14 Jun 2011

Design & development

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Evaluation board

TPS7A6301EVM — TPS7A6301 evaluation module

The Texas Instruments TPS7A6301EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS7A63xx and TPS7A64xx family of 300-mA 40V Low-Dropout regulators with Iq 35-uA and integrated watchdog. The TPS7A6301 is an adjustable output voltage version. The EVM is (...)

User guide: PDF
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Simulation model

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SLVM313A.ZIP (151 KB) - PSpice Model
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Simulation model

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HTSSOP (PWP) 14 Ultra Librarian
VSON (DRK) 10 Ultra Librarian
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