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

US ECCN: EAR99 US/Local Export Classification Number

Inventory: 477  
Limit:  50

Quality information

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Quality, reliability
& packaging information

Information included:

  • RoHS
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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
HVSSOP (DGQ) | 10 2,500 | LARGE T&R
-40 to 125
Package | Pins HVSSOP (DGQ) | 10
Package qty | Carrier: 2,500 | LARGE T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the TPS7A43

  • Input voltage: 4 V to 85 V
  • Ultra-low IQ: 6.5 µA
  • Wide output voltage range:
    • Adjustable: 1.24 V to 14.5 V
    • Fixed: 1.25 V to 5.0 V
  • Intermediate output (MID_OUT): 10 V, 12 V, 15 V
  • Precision enable
  • 1% accuracy over temperature
  • 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)

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Description for the TPS7A43

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 (IQ).

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

The TPS7A43 is available in both fixed and adjustable output versions. Fixed output options are available in standard voltage options and the adjustable output version uses external feedback resistors to set the output voltage from 1.24 V to 14.5 V. The main output (OUT) has a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references. The device also provides a second intermediate output (MID_OUT) that can be used to bias gate drivers in place of a discrete regulator. The MID_OUT uses two logic pins (MVSEL1 and MVSEL2) to adjust the intermediate output rail between 10 V, 12 V, or 15 V.

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 built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.


Qty Price (USD)
1-99 1.77
100-249 1.462
250-999 1.05
1,000+ 0.79