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Linear & low-dropout (LDO) regulators

TPS7A8101

ACTIVE

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

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Data sheet

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Same functionality with different pin-out to the compared device
TPS7A91 ACTIVE 1-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy 1-A, low noise (4.7 µVrms) LDO in a small package (2.5 mm x 2.5 mm).
Similar functionality to the compared device
TPS7A88 ACTIVE 1-A, low-noise, high-PSRR, dual-channel adjustable ultra-low-dropout voltage regulator Dual-channel, low noise, 1-A LDO.

TPS7A8101

ACTIVE
Data sheet Order now

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 Rating Catalog Noise (µVrms) 23 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.06 Thermal resistance θJA (°C/W) 48 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 170 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 Rating Catalog Noise (µVrms) 23 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.06 Thermal resistance θJA (°C/W) 48 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 170 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • 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 a 4.7-µF Capacitance
  • Excellent Load and Line Transient Response
  • 3% Overall Accuracy (Over Load, Line,
    Temperature)
  • Overcurrent and Overtemperature Protection
  • Very Low Dropout: 170 mV Typical at 1 A
  • Package: 3-mm × 3-mm SON-8
  • 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 a 4.7-µF Capacitance
  • Excellent Load and Line Transient Response
  • 3% Overall Accuracy (Over Load, Line,
    Temperature)
  • Overcurrent and Overtemperature Protection
  • Very Low Dropout: 170 mV Typical at 1 A
  • Package: 3-mm × 3-mm SON-8

The TPS7A8101 low-dropout linear regulator (LDO) offers very good performance in noise and power-supply rejection ratio (PSRR) at the output. 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 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 TJ = –40°C to 125&#deg;C and is offered in a 3-mm × 3-mm, SON-8 package with a thermal pad.

The TPS7A8101 low-dropout linear regulator (LDO) offers very good performance in noise and power-supply rejection ratio (PSRR) at the output. 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 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 TJ = –40°C to 125&#deg;C and is offered in a 3-mm × 3-mm, SON-8 package with a thermal pad.
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Type Title Date
* Data sheet TPS7A8101 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator datasheet (Rev. B) PDF | HTML 20 Mar 2015
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Analog Design Journal 4Q 2012 Issue Analog Applications Journal 25 Sep 2012
Analog Design Journal LDO noise examined in detail 25 Sep 2012
User guide TPS7A8101EVM-093 Evaluation Module 20 Dec 2011
Application note LDO Performance Near Dropout 08 Oct 2010

Design & development

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Evaluation board

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User guide: PDF
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Simulation model

TPS7A8101 PSpice Transient Model

SBVM110.ZIP (33 KB) - PSpice Model
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Gerber file

TPS7A8101EVM-097 Gerber Files

SLVC403.ZIP (236 KB)
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