Automotive 1-A, high-PSRR, adjustable low-dropout voltage regulator with enable

TPS7A8101-Q1

ACTIVE

Product details

Output options Adjustable Output Iout (Max) (A) 1 Vin (Max) (V) 6.5 Vin (Min) (V) 2.2 Vout (Max) (V) 6 Vout (Min) (V) 0.8 Noise (uVrms) 23 Iq (Typ) (mA) 0.06 Thermal resistance θJA (°C/W) 46 Rating Automotive Load capacitance (Min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 60 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
Output options Adjustable Output Iout (Max) (A) 1 Vin (Max) (V) 6.5 Vin (Min) (V) 2.2 Vout (Max) (V) 6 Vout (Min) (V) 0.8 Noise (uVrms) 23 Iq (Typ) (mA) 0.06 Thermal resistance θJA (°C/W) 46 Rating Automotive Load capacitance (Min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 60 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Low-Dropout 1-A Regulator with Enable
  • Adjustable Output Voltage: 0.8 V to 6 V
  • Wide-Bandwidth High PSRR:
    • 80 dB at 1 kHz
    • 60 dB at 100 kHz
    • 54 dB at 1 MHz
  • Low Noise: 23.5 μVRMS typical (100 Hz to
    100 kHz)
  • Stable With 4.7-µF Output Capacitance
  • Excellent Load and Line Transient Response
  • 3% Overall Accuracy (Over Load, Line, Temperature)
  • Over-Current and Overtemperature Protection
  • Very Low Dropout: 170 mV Typical at 1 A
  • Package: 3-mm × 3-mm SON-8
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Low-Dropout 1-A Regulator with Enable
  • Adjustable Output Voltage: 0.8 V to 6 V
  • Wide-Bandwidth High PSRR:
    • 80 dB at 1 kHz
    • 60 dB at 100 kHz
    • 54 dB at 1 MHz
  • Low Noise: 23.5 μVRMS typical (100 Hz to
    100 kHz)
  • Stable With 4.7-µF Output Capacitance
  • Excellent Load and Line Transient Response
  • 3% Overall Accuracy (Over Load, Line, Temperature)
  • Over-Current and Overtemperature Protection
  • Very Low Dropout: 170 mV Typical at 1 A
  • Package: 3-mm × 3-mm SON-8

The TPS7A8101-Q1 low-dropout linear regulator (LDO) offers very good performance in output noise and power-supply rejection ratio (PSRR). This LDO uses an advanced BiCMOS process and a PMOSFET pass device to achieve very low noise, excellent transient response, and excellent PSRR performance.

The TPS7A8101-Q1 device is stable with a 4.7-μF ceramic output capacitor and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations.

This device is fully specified over the temperature range of TA = –40°C to 125°C and is offered in a 3-mm × 3-mm, SON-8 package with a thermal pad.

The TPS7A8101-Q1 low-dropout linear regulator (LDO) offers very good performance in output noise and power-supply rejection ratio (PSRR). This LDO uses an advanced BiCMOS process and a PMOSFET pass device to achieve very low noise, excellent transient response, and excellent PSRR performance.

The TPS7A8101-Q1 device is stable with a 4.7-μF ceramic output capacitor and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations.

This device is fully specified over the temperature range of TA = –40°C to 125°C and is offered in a 3-mm × 3-mm, SON-8 package with a thermal pad.

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Technical documentation

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Type Title Date
* Data sheet TPS7A8101-Q1 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator datasheet (Rev. A) 19 Jun 2014
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Functional safety information TPS7A8101-Q1 Functional Safety FIT Rate and Failure Mode Distribution 17 Dec 2019
User guide Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide 12 Oct 2016
Technical article Making safety systems safer with the right LDO 18 Feb 2015

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Simulation model

TPS7A8101 PSpice Transient Model

SBVM110.ZIP (33 KB) - PSpice Model
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