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

TPS7A43

ACTIVE

50-mA, 85-V, ultra-low IQ, dual low-dropout voltage regulator with power good and precision enable

Order now
Data sheet

TPS7A43

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 85 Vin (min) (V) 4 Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Rating Catalog Noise (µVrms) 115 PSRR at 100 KHz (dB) 75 Iq (typ) (mA) 0.0055 Thermal resistance θJA (°C/W) 53.7 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Features Enable, Power good Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 85 Vin (min) (V) 4 Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Rating Catalog Noise (µVrms) 115 PSRR at 100 KHz (dB) 75 Iq (typ) (mA) 0.0055 Thermal resistance θJA (°C/W) 53.7 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Features Enable, Power good Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • Input voltage: 4 V to 85 V
  • Wide output (OUT) voltage range:
    • Adjustable: 1.24 V to 14.5 V
    • Fixed: 1.25 V to 5.0 V
  • Selectable intermediate output (MID_OUT):
    • 10 V, 12 V, 15 V
  • Maximum output current:
    • 50 mA (shared between OUT and MID_OUT)
  • 1% accuracy over temperature
  • Ultra-low IQ: 5.5 µA
  • Precision enable
  • Power-good (PG) output (open drain)
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Package: HVSSOP-10 (RθJA = 53.7°C/W)
  • Input voltage: 4 V to 85 V
  • Wide output (OUT) voltage range:
    • Adjustable: 1.24 V to 14.5 V
    • Fixed: 1.25 V to 5.0 V
  • Selectable intermediate output (MID_OUT):
    • 10 V, 12 V, 15 V
  • Maximum output current:
    • 50 mA (shared between OUT and MID_OUT)
  • 1% accuracy over temperature
  • Ultra-low IQ: 5.5 µA
  • Precision enable
  • Power-good (PG) output (open drain)
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Package: HVSSOP-10 (RθJA = 53.7°C/W)

The TPS7A43 low-dropout (LDO) linear voltage regulator introduces a combination of a 4-V to 85-V input voltage range with very-low quiescent current.

This device can support a wide range of input voltages (for example, a 15-s battery and 24-V to 48-V line power) and withstand line transient voltages up to 85 V. These features help modern applications meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A43 output (OUT) is available in both fixed and adjustable output versions, which can regulate from 1.24 V to 14.5 V at 1% accuracy. The device also provides a second intermediate output (MID_OUT) that can be set to 10 V, 12 V, and 15 V using the MVSEL pins and can be used to bias gate drivers in place of a discrete regulator.

The TPS7A43 features a precision enable input that helps enable or disable the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.

The TPS7A43 low-dropout (LDO) linear voltage regulator introduces a combination of a 4-V to 85-V input voltage range with very-low quiescent current.

This device can support a wide range of input voltages (for example, a 15-s battery and 24-V to 48-V line power) and withstand line transient voltages up to 85 V. These features help modern applications meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A43 output (OUT) is available in both fixed and adjustable output versions, which can regulate from 1.24 V to 14.5 V at 1% accuracy. The device also provides a second intermediate output (MID_OUT) that can be set to 10 V, 12 V, and 15 V using the MVSEL pins and can be used to bias gate drivers in place of a discrete regulator.

The TPS7A43 features a precision enable input that helps enable or disable the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.
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
TPS7A44 ACTIVE 50-mA, 65-V, low-IQ, LDO linear voltage regulator with power good and selectable mid-output rail Lower input voltage range.
Same functionality with different pin-out to the compared device
LM2936 ACTIVE 50-mA, 60-V, low-IQ, low-dropout voltage regulator with reverse voltage protection Higher power-supply rejection ratio (PSRR), better accuracy and IQ
TPS7A16 ACTIVE 100-mA, 60-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with power good and enable Higher power-supply rejection ratio (PSRR), better accuracy and similar package.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS7A43 50-mA, 85-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good, Precision Enable, and Selectable Mid-Output Rail datasheet (Rev. B) PDF | HTML 15 Nov 2022
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems 18 Feb 2021
EVM User's guide TPS7A43EVM-047 EVM User's Guide 23 Oct 2020

Design & development

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

Evaluation board

TPS7A43EVM-047 — TPS7A43 50-mA, 85-V, ultra-low IQ, dual LDO voltage regulator with power good evaluation module

The TPS7A43EVM-047 evaluation module (EVM) is a platform for evaluating the operation and performance of the TPS7A43 linear regulator. This EVM configuration contains a single 50-mA, high-voltage, low-quiescent-current (IQ), dual-output, low-dropout (LDO) voltage regulator for general applications. (...)

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

TPS7A43 PSpice Transient Model (3.3 V)

SBVM980.ZIP (51 KB) - PSpice Model
Download
Simulation model

TPS7A43 PSpice Transient Model (5 V)

SBVM979.ZIP (61 KB) - PSpice Model
Download
Simulation model

TPS7A43 PSpice Transient Model (Adjustable)

SBVM981.ZIP (52 KB) - PSpice Model
Download
Package Pins CAD symbols, footprints & 3D models
HVSSOP (DGQ) 10 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