Texas Instruments TPS7A43 LDO Linear Voltage regulator

Texas Instruments TPS7A43 Low Voltage Drop (LDO) linear regulators incorporate input voltage ranges of 4V to 85V and ultra-low static current features. This device supports a wide range of input voltages (e.g., 15-cell batteries and 24V to 48V line power supplies) and can withstand line transient voltages up to 85V. These features help modern applications meet increasingly demanding energy requirements and help extend battery life for portable power solutions.

Texas Instruments TPS7A43 Output (OUT) is available in both fixed and adjustable output voltage versions, the latter adjusting the voltage from 1.24V to 14.5V with 1% accuracy. The device also provides a second intermediate output (MID_OUT), which can be set to 10V, 12V, and 15V using the MVSEL pins. It can also bias a grid driver instead of a separate voltage regulator.

The TPS7A43 features precision enable inputs that help enable or disable LDO at fixed and accurate threshold voltages using a resistive divider from the input. Power supply normal state (PG) output is used to monitor the feedback pin voltage and thus indicate the state of the output voltage. The EN input and PG output can be used to sort multiple power sources in the system.

Features

● Input voltage: 4V to 85V
● Wide output (OUT) voltage range
-   Adjustable voltage: 1.24V to 14.5V
-   Fixed voltage: 1.25V to 5.0V
● Optional intermediate output (MID_OUT)
-   10V, 12V, 15V
● Maximum output current
-   50mA (shared between OUT and MID_OUT)
● The accuracy is 1% in the whole temperature range
● Ultra low IQ: 5.5µA
● Precision enablement
● Good power supply (PG) output (leak opening)
● Heat off and overcurrent protection
● Working junction temperature range: - 40°C to +125°C
● Package: HVSSOP-10 (RθJA = 53.7°C/W)

Applications

● Cordless power tools
● Dc motor and fan
● Programmable logic controller (PLC)
● Field transmitter and process sensor
● Smoke and heat detector
● Electric vehicle charging infrastructure
● Battery pack