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TPS7A20

ACTIVE

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

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Data sheet

TPS7A20

ACTIVE
Data sheet Order now

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, 1.175, 1.2, 1.3, 1.35, 1.5, 1.75, 1.8, 1.82, 1.825, 1.85, 2, 2.2, 2.25, 2.4, 2.5, 2.7, 2.75, 2.8, 2.85, 2.9, 3, 3.1, 3.2, 3.3, 3.6, 4, 4.2, 4.5, 5, 5.5, 5.525 Rating Catalog Noise (µVrms) 7 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.0065 Thermal resistance θJA (°C/W) 179.1, 199.6, 201.4 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1.5 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, 1.175, 1.2, 1.3, 1.35, 1.5, 1.75, 1.8, 1.82, 1.825, 1.85, 2, 2.2, 2.25, 2.4, 2.5, 2.7, 2.75, 2.8, 2.85, 2.9, 3, 3.1, 3.2, 3.3, 3.6, 4, 4.2, 4.5, 5, 5.5, 5.525 Rating Catalog Noise (µVrms) 7 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.0065 Thermal resistance θJA (°C/W) 179.1, 199.6, 201.4 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1.5 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: 7µVRMS
    • No noise-bypass capacitor required
  • High PSRR: 95dB at 1kHz
  • Very low IQ: 6.5µA
  • Input voltage range: 1.6V to 6.0V
  • Output voltage range: 0.8V to 5.5V
  • Output voltage tolerance: ±1.5% (max)
  • Very low dropout:
    • 140mV (max) at 300mA (VOUT = 3.3V)
    • 145mV (max) at 300mA (VOUT = 3.3V, DBV)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1µF minimum ceramic output capacitor
  • Packages:
    • 1mm × 1mm X2SON (DQN)
    • 0.616mm × 0.616mm DSBGA (YCK)
    • 0.612mm × 0.612mm DSBGA (YCJ)
    • 2.9mm × 2.8mm SOT23-5 (DBV)
  • Low output voltage noise: 7µVRMS
    • No noise-bypass capacitor required
  • High PSRR: 95dB at 1kHz
  • Very low IQ: 6.5µA
  • Input voltage range: 1.6V to 6.0V
  • Output voltage range: 0.8V to 5.5V
  • Output voltage tolerance: ±1.5% (max)
  • Very low dropout:
    • 140mV (max) at 300mA (VOUT = 3.3V)
    • 145mV (max) at 300mA (VOUT = 3.3V, DBV)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1µF minimum ceramic output capacitor
  • Packages:
    • 1mm × 1mm X2SON (DQN)
    • 0.616mm × 0.616mm DSBGA (YCK)
    • 0.612mm × 0.612mm DSBGA (YCJ)
    • 2.9mm × 2.8mm SOT23-5 (DBV)

The TPS7A20 is an ultra-small, low-dropout (LDO) linear regulator that can source 300mA 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 1.6V to 6.0V and an output range of 0.8V to 5.5V, 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 300mA 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 1.6V to 6.0V and an output range of 0.8V to 5.5V, 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 300mA, Ultra-Low-Noise, Low-IQ , High PSRR LDO datasheet (Rev. H) PDF | HTML 02 Jul 2024
White paper 以低雜訊電源裝置簡化電源架構 (Rev. A) PDF | HTML 05 Nov 2024
White paper 저잡음 전력 장치로 전력 아키텍처 간소화 (Rev. A) PDF | HTML 05 Nov 2024
White paper Simplifying Power Architectures With Low-Noise Power Devices (Rev. A) PDF | HTML 04 Nov 2024
White paper Demystifying LDO Turn-On (startup) Time PDF | HTML 05 Oct 2024
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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User guide: PDF | HTML
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Simulation model

TPS7A20 PSpice Transient Model

SBVM961.ZIP (19 KB) - PSpice Model
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Package Pins CAD symbols, footprints & 3D models
DSBGA (YCJ) 4 Ultra Librarian
DSBGA (YCK) 4 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
X2SON (DQN) 4 Ultra Librarian
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