# TPAP2112K-3.3TRG1 (Component) ## Description The TPAP2112K-3.3TRG1 is a low-dropout linear voltage regulator designed to provide a stable regulated output voltage for low-power electronic systems. This device is optimized for applications requiring low noise, low quiescent current, and compact PCB implementation in portable and embedded electronics. The regulator delivers reliable voltage regulation with minimal external component requirements, making it suitable for battery-powered devices, microcontroller systems, wireless modules, sensor interfaces, and general-purpose analog and digital power rails. Its low-dropout architecture enables efficient operation even when the input voltage is close to the regulated output voltage, helping extend battery life in portable applications. The TPAP2112K-3.3TRG1 integrates internal protection features such as current limiting and thermal shutdown to improve system reliability and protect downstream circuitry from abnormal operating conditions. Its compact surface-mount package supports high-density PCB layouts and automated manufacturing processes. Engineering Specification Device Type Low-dropout linear voltage regulator Regulator Topology Positive fixed-output LDO regulator Output Voltage Fixed regulated voltage output Input Characteristics Designed for low-voltage DC input operation Dropout Characteristics Low-dropout voltage architecture for efficient regulation Output Performance Stable low-noise voltage regulation Quiescent Current Low standby current suitable for portable systems Protection Features Current limiting Thermal shutdown Short-circuit protection Thermal Characteristics Efficient thermal operation for compact embedded systems Stability Characteristics Stable operation with standard external capacitors Package Type Surface-mount package Mounting Style Surface mount technology Applications Embedded systems Battery-powered devices Wireless modules Sensor power rails Microcontroller systems Portable electronics IoT hardware Consumer electronics Industrial control systems Analog signal conditioning Manufacturer Commonly associated with 3PEAK or compatible power management vendors #commonpartslibrary #ldoregulator #voltageregulator #powermanagement #powersupply #embeddedhardware #powerelectronics #surfaceountcomponents #electronicsdesign #portableelectronics #iothardware #analogdesign #batterypowered #industrialelectronics #lowpowerelectronics ## Component Details - **Owner:** lcsc - **Created:** 11/5/2024 - **Last Updated:** 5/28/2026 - **Visibility:** Public - **Symbol Style:** parametric-v1 - **Manufacturer Name:** TECH PUBLIC(台舟) - **Part Type:** Linear Voltage Regulators (LDO) - **LCSC Part Number:** C3021085 - **JLCPCB Part Class:** Extended Part - **Manufacturer Part Number:** TPAP2112K-3.3TRG1 - **Package or Case Code:** SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR - **Datasheet URL:** https://www.lcsc.com/datasheet/C3021085.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=QlUIU1dSRgJcA1FQQVUMBgdeElQIVldRQ1daVQdeQAcxVlNRTlhWVFxRQFhcXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - **Used in:** 34 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [LCSC](https://www.lcsc.com/product-detail/C3021085.html) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** FILL IN - **MPN:** TPAP2112K-3.3TRG1 - **Mount Type:** Surface Mount - **Package / Case Code:** SOT-23-5 - **Pin Count:** 5 - **Logic Function:** Regulator ## Pins | Pin | Name | Type | |-----|------|------| | 1 | VIN | | | 2 | GND | | | 3 | EN | | | 4 | NC | | | 5 | VOUT | | --- *Generated from [https://www.flux.ai/lcsc/tpap2112k-3p3trg1~h3ez](https://www.flux.ai/lcsc/tpap2112k-3p3trg1~h3ez)*