TPS7A20

ACTIVE

300-mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator with high PSRR

Product details

Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 6 Vin (min) (V) 1.6 Vout (max) (V) 5.5 Vout (min) (V) 0.8 Fixed output options (V) 0.9, 1.05, 1.1, 1.2, 1.5, 1.8, 1.82, 1.85, 2, 2.2, 2.4, 2.5, 2.7, 2.8, 2.85, 2.9, 3, 3.1, 3.2, 3.3, 3.6, 4, 4.2, 4.5, 5, 5.5 Noise (µVrms) 7 Iq (typ) (mA) 0.0065 Thermal resistance θJA (°C/W) 179.1, 199.6, 201.4 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1.5 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 6 Vin (min) (V) 1.6 Vout (max) (V) 5.5 Vout (min) (V) 0.8 Fixed output options (V) 0.9, 1.05, 1.1, 1.2, 1.5, 1.8, 1.82, 1.85, 2, 2.2, 2.4, 2.5, 2.7, 2.8, 2.85, 2.9, 3, 3.1, 3.2, 3.3, 3.6, 4, 4.2, 4.5, 5, 5.5 Noise (µVrms) 7 Iq (typ) (mA) 0.0065 Thermal resistance θJA (°C/W) 179.1, 199.6, 201.4 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1.5 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
DSBGA (YCJ) 4 0.374544 mm² 0.612 x 0.612 DSBGA (YCK) 4 0.379456 mm² 0.616 x 0.616 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 X2SON (DQN) 4 1 mm² 1 x 1
  • Low output voltage noise: 7 µVRMS
    • No noise-bypass capacitor required
  • High PSRR: 95 dB at 1 kHz
  • Very low IQ: 6.5 µA
  • Input voltage range: 1.6 V to 6.0 V
  • Output voltage range: 0.8 V to 5.5 V
  • Output voltage tolerance: ±1.5% (max)
  • Very low dropout:
    • 140 mV (max) at 300 mA (VOUT = 3.3 V)
    • 145 mV (max) at 300 mA (VOUT = 3.3 V, DBV)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1-µF minimum ceramic output capacitor
  • Packages:
    • 1-mm × 1-mm X2SON
    • 0.616-mm × 0.616-mm DSBGA
    • 2.90-mm × 1.60-mm SOT23-5
  • Low output voltage noise: 7 µVRMS
    • No noise-bypass capacitor required
  • High PSRR: 95 dB at 1 kHz
  • Very low IQ: 6.5 µA
  • Input voltage range: 1.6 V to 6.0 V
  • Output voltage range: 0.8 V to 5.5 V
  • Output voltage tolerance: ±1.5% (max)
  • Very low dropout:
    • 140 mV (max) at 300 mA (VOUT = 3.3 V)
    • 145 mV (max) at 300 mA (VOUT = 3.3 V, DBV)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1-µF minimum ceramic output capacitor
  • Packages:
    • 1-mm × 1-mm X2SON
    • 0.616-mm × 0.616-mm DSBGA
    • 2.90-mm × 1.60-mm SOT23-5

The TPS7A20 is an ultra-small, low-dropout (LDO) linear regulator that can source 300 mA of output current. The TPS7A20 is designed to provide low noise, high PSRR, and excellent load and line transient performance that can meet the requirements of RF and other sensitive analog circuits. Using innovative design techniques, the TPS7A20 offers an ultra-low noise performance without the addition of a noise bypass capacitor. The TPS7A20 also provides the advantage of low quiescent current, which can be ideal for battery-powered applications. With an input voltage range of 1.6 V to 6.0 V and an output range of 0.8 V to 5.5 V, the TPS7A20 can be used for a wide variety of applications. The device uses a precision reference circuit to provide a maximum accuracy of 1.5% over load, line, and temperature variations.

The TPS7A20 features an internal soft-start to lower the inrush current, thus minimizing the input voltage drop during start up. The device is stable with small ceramic capacitors, allowing for a small overall solution size.

The TPS7A20 has a smart enable input circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps eliminate the external components used to pulldown the EN pin.

The TPS7A20 is an ultra-small, low-dropout (LDO) linear regulator that can source 300 mA of output current. The TPS7A20 is designed to provide low noise, high PSRR, and excellent load and line transient performance that can meet the requirements of RF and other sensitive analog circuits. Using innovative design techniques, the TPS7A20 offers an ultra-low noise performance without the addition of a noise bypass capacitor. The TPS7A20 also provides the advantage of low quiescent current, which can be ideal for battery-powered applications. With an input voltage range of 1.6 V to 6.0 V and an output range of 0.8 V to 5.5 V, the TPS7A20 can be used for a wide variety of applications. The device uses a precision reference circuit to provide a maximum accuracy of 1.5% over load, line, and temperature variations.

The TPS7A20 features an internal soft-start to lower the inrush current, thus minimizing the input voltage drop during start up. The device is stable with small ceramic capacitors, allowing for a small overall solution size.

The TPS7A20 has a smart enable input circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps eliminate the external components used to pulldown the EN pin.

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Technical documentation

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Type Title Date
* Data sheet TPS7A20 300-mA, Ultra-Low-Noise, Low-IQ, High PSRR LDO datasheet (Rev. G) PDF | HTML 19 May 2022
White paper Simplifying Power Architectures With Low-Noise Power Devices PDF | HTML 07 Nov 2023
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems 18 Feb 2021
Technical article How to design an infrared thermometer quickly PDF | HTML 07 Apr 2020

Design & development

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Evaluation board

MULTIPKGLDOEVM-823 — Universal LDO linear voltage regulator evaluation module for DBV, DRB, DRV and DQN packages

The MULTIPKGLDOEVM-823 evaluation module (EVM) helps you evaluate the operation and performance of several common packages of linear regulators for possible use in circuit applications. This particular EVM configuration has a DRB, DRV, DQN and DBV footprint for you to solder and (...)

User guide: PDF
Not available on TI.com
Evaluation board

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

TPS7A20 PSpice Transient Model

SBVM961.ZIP (19 KB) - PSpice Model
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Package Pins Download
DSBGA (YCJ) 4 View options
DSBGA (YCK) 4 View options
SOT-23 (DBV) 5 View options
X2SON (DQN) 4 View options

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