The TLV74312PDBVR is a high-performance, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments (TI). Belonging to the TLV743P series, this power management IC features a fixed 1.2V output voltage, a maximum output current of 300mA, and an input voltage range of 1.4V to 5.5V, providing reliable voltage regulation for compact and low-power electronic systems.
Designed for power-sensitive applications, the TLV74312PDBVR features a typical quiescent current of only 34µA, helping reduce standby power consumption and extend battery operating life. Its low-dropout architecture enables efficient voltage regulation when adequate input-to-output voltage headroom is maintained.
The device provides output voltage accuracy within ±1% at 25°C and ±1.4% over the specified operating junction temperature range. It supports stable operation with a 1µF ceramic output capacitor, reducing external component requirements and simplifying PCB design.
The TLV74312PDBVR integrates enable control, active output discharge, foldback overcurrent protection, undervoltage lockout (UVLO), and thermal shutdown protection. These features help improve system reliability and protect the regulator during abnormal operating conditions.
Housed in a compact 5-pin SOT-23 (DBV) surface-mount package, the regulator supports high-density PCB layouts and automated SMT assembly. Its operating junction temperature range of -40°C to +125°C makes it suitable for portable electronics, industrial control systems, embedded devices, and low-power digital circuits.
Key Features:
- Manufacturer: Texas Instruments (TI)
- Part Number: TLV74312PDBVR
- Product Series: TLV743P Series
- Product Category: Power Management ICs (PMIC)
- Product Type: Low-Dropout Linear Voltage Regulator (LDO)
- Output Configuration: Positive
- Output Type: Fixed
- Number of Outputs: 1
- Fixed Output Voltage: 1.2V
- Maximum Output Current: 300mA
- Input Voltage Range: 1.4V to 5.5V
- Typical Quiescent Current (Iq): 34µA
- Maximum Quiescent Current: 60µA under specified conditions
- Output Voltage Accuracy: ±1% at 25°C, ±1.4% over the specified temperature range
- Minimum Output Capacitor: 1µF Ceramic
- Enable Function: Yes
- Active Output Discharge: Yes
- Protection Features: Foldback Current Limit, Thermal Shutdown, Undervoltage Lockout
- Operating Junction Temperature: -40°C to +125°C
- Package: SOT-23-5 (DBV)
- Number of Pins: 5
- Mounting Type: Surface Mount (SMD/SMT)
- Packaging: Tape and Reel
- Standard Reel Quantity: 3,000 Pieces
- RoHS Compliance: RoHS Compliant
Typical Applications:
- Battery-powered electronic devices
- Portable consumer electronics
- Industrial automation and control equipment
- Microcontroller and processor power supplies
- Internet of Things (IoT) devices
- Embedded electronic systems
- Low-power digital circuits
- Sensor modules and communication devices
- Compact power management systems
The Texas Instruments TLV74312PDBVR combines low quiescent current, accurate voltage regulation, integrated protection features, and compact packaging to provide a dependable power management solution for modern electronic applications.
Its fixed 1.2V output, 300mA current capability, and minimal external component requirements make it a practical choice for electronic manufacturers, embedded system developers, and design engineers seeking reliable low-voltage LDO regulators.
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