TPS7A63-Q1

ACTIVE

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

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 11 Vout (max) (V) 7 Vout (min) (V) 2.5 Fixed output options (V) 3.3, 5 Iq (typ) (mA) 0.035 Thermal resistance θJA (°C/W) 37 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Power good, Watchdog timer Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 11 Vout (max) (V) 7 Vout (min) (V) 2.5 Fixed output options (V) 3.3, 5 Iq (typ) (mA) 0.035 Thermal resistance θJA (°C/W) 37 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Power good, Watchdog timer Accuracy (%) 2 PSRR at 100 KHz (dB) 40 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.





Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
TPS7B68-Q1 ACTIVE Automotive 500-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator with WD The most up-to-date watchdog LDO.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
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

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

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
Not available on TI.com
Simulation model

TPS7A6301-Q1 PSpice Transient Model (Rev. A)

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

TPS7A6333-Q1 PSpice Transient Model (Rev. A)

SLVM336A.ZIP (135 KB) - PSpice Model
Simulation model

TPS7A6350-Q1 PSpice Transient Model (Rev. A)

SLVM312A.ZIP (126 KB) - PSpice Model
Package Pins Download
HTSSOP (PWP) 14 View options
VSON (DRK) 10 View options

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

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