Texas Instruments

LP2951-33D  

Linear & Switching Voltage Regulators

The LP2951-33D is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and reliable voltage output for various applications.

Description:

The LP2951-33D is a precision micropower low-dropout (LDO) voltage regulator with an output voltage range of 1.2V to 36V. It has an input voltage range of 2.5V to 5.5V and an output current capability of up to 100mA. The device is available in a small SOT-23 package, making it ideal for space-constrained applications.

Features:

1. Low dropout voltage: The LP2951-33D has a low dropout voltage of typically 300mV at maximum output current, ensuring efficient operation even with low input voltages.
2. High accuracy and stability: The LDO offers an output voltage accuracy of ±1% and a line regulation of 0.05%/V, providing a stable output voltage under varying input voltage and load conditions.
3. Low quiescent current: The device has a low quiescent current of 5.5µA (typical), making it suitable for battery-powered applications where power consumption is critical.
4. Enable function: The LP2951-33D features an enable function, allowing the output to be turned on or off by an external control signal.
5. Overcurrent and thermal protection: The LDO provides overcurrent protection and thermal shutdown to safeguard the device and the system in case of overload or overtemperature conditions.
6. Small package: The SOT-23 package is compact and suitable for space-constrained applications.

Applications:

1. Portable electronics: The LP2951-33D is ideal for use in battery-powered devices such as smartphones, tablets, and wearables, where efficient power regulation and low power consumption are crucial.
2. IoT devices: The low power consumption and small form factor make the LP2951-33D suitable for Internet of Things (IoT) devices, where energy efficiency and compact design are important.
3. Medical devices: The precision and stability of the LP2951-33D make it suitable for use in medical devices that require reliable and accurate voltage regulation.
4. Industrial equipment: The LDO can be used in industrial applications where stable voltage regulation is required, such as in sensors, controllers, and communication modules.
5. Automotive electronics: The LP2951-33D can be used in automotive applications, providing stable voltage regulation for various electronic components in vehicles.

In summary, the Texas Instruments LP2951-33D is a low-dropout linear voltage regulator with high accuracy, stability, and low power consumption, making it suitable for a wide range of applications, including portable electronics, IoT devices, medical devices, industrial equipment, and automotive electronics.

LP2951-33D Documents

Download datasheets and manufacturer documentation for LP2951-33D

EOL :

Product Discontinuance Notification 2024-04-05 (PDF)       Product Discontinuance Notification (PDF)      

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification (PDF)      

Models :

LP2951-33D Symbol & Footprint by SnapMagic      

Application Notes :

Understanding LDO Dropout       Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A)       Extending the Input Voltage Range of an LDO Regulator       Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A)       A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes       Low-Voltage Current Loop Transmitter       ESR Stability and the LDO Regulator (Rev. A)       AN-1815 LDOs Ease the Stress of Start-Up (Rev. A)       3.6V - 5.5V Input LDO Reference Design for MSP430 (Rev. A)       Techniques for accurate PSRR measurements       Simple Power Solution Using LDOs for the DM365 (Rev. A)       AN-1950 Silently Powering Low Noise Applications (Rev. A)       Technical Review of Low Dropout Voltage Regulator Operation And Performance       Low Power 150-mA LDO Linear Regulators. Extended Output Voltage Adjustment Range       3.6V - 5.5V Input LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)       LDO Performance Near Dropout      

SPICE Models :

LP2951 Unencrypted PSpice Transient Model       LP2951 PSpice Transient Model (Rev. A)