Home Power management Linear & low-dropout (LDO) regulators
Home
Power management
Linear & low-dropout (LDO) regulators

TPS7A20

ACTIVE

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

Order now
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 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, 1.175, 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 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: 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.
filter Find other Linear & low-dropout (LDO) regulators
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
NEW TPS7A20L ACTIVE 300-mA low-noise, low-IQ voltage regulator with high PSRR and 1.2-V logic-compatible enable 1.2V logic enable compatible
Same functionality with different pin-out to the compared device
TLV758P ACTIVE 500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with enable Higher current with adjustable output and wider output range.
TPS7A14 ACTIVE 1-A, low input and output voltage, ultra-low-dropout (LDO) voltage regulator Lower dropout and lower IQ

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
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 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

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

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

TPS65219EVM — TPS65219 evaluation module for 2.5-V to 5.5-V three-bucks and four-LDOs power management IC (PMIC)

The TPS65219EVM is a fully assembled platform for evaluating the performance and functionality of the TPS65219 power management IC (PMIC). The EVM includes an onboard USB-to-I²C adapter, power terminals, and jumpers for all DC regulator inputs and outputs, as well as test points for (...)

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

TPS7A20 PSpice Transient Model

SBVM961.ZIP (19 KB) - PSpice Model
Download
Reference designs

TIDA-010955 — Analog front end for machine learning arc detection in solar applications

This reference design features an analog front end for DC arc detection in solar applications based on artificial intelligence (AI). DC arcing induces a high-frequency noise onto the DC sting current. To detect the arcing frequency, data is acquired and feed into an embedded AI model, which is (...)
Design guide: PDF
Reference designs

TIDA-010042 — 400-W GaN-based MPPT charge controller and power optimizer reference design

This reference design is a Maximum Power Point Tracking (MPPT) solar charge controller for 12V and 24V batteries that can be used as a power optimizer in the future. This compact reference design targets small- and medium-power solar charger designs and is capable of operating with 15V to 60V (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010087 — 100-A Dual-phase digital control battery tester reference design

This reference design illustrates a method to precisely control the current and voltage of a bidirectional interleaved buck-converter power stage using a C2000™ microcontroller (MCU) and a precision ADC ADS131M08. This design achieves less than ±20-mA current regulation error, and (...)
Design guide: PDF
Reference designs

PMP31177 — 1-W primary-side regulated flyback reference design

This 26.54 mm × 11.68 mm × 5.6-mm height board is optimized to leverage the performance of the LM5181 PSR Flyback converter. The board operates over an input voltage range of 18 V to 32 V to deliver 24-V and 3.3‑V outputs at currents of up to 40 mA and 15 mA respectively. Operating (...)
Test report: PDF
Reference designs

TIDA-010249 — Four-channel synchronous vibration sensor interface reference design

This reference design explains the theory, design and testing of a synchronous, four-channel wideband high-resolution interface. The main targets are the vibration sensing applications, but the design can also be applied to any application that requires wideband, such as three-phase voltage and (...)
Design guide: PDF
Reference designs

TIDA-010224 — Low-power wireless camera reference design for extended battery life

This reference design provides a solution for a battery-operated wireless camera by combining industry-leading image processing, connectivity, sensor and power. High-efficiency power converters along with optimized system architecture help to increase battery life. The image
processor with a (...)
Design guide: PDF
Schematic: PDF
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
TI's Standard Terms and Conditions for Evaluation Items apply.

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

View all forum topics

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