# AP7381-33V-A (Component) ## Description Linear Voltage Regulator IC Positive Fixed 1 Output 150mA TO-92 The AP7381 series is a positive voltage regulator IC. The AP7381 has features of wide input voltage range, high accuracy, low dropout voltage, current limit and ultra-low quiescent current which make it ideal for use in various USB and portable devices. The IC consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection, and a chip enable circuit. The AP7381 has 2.8V, 3.3V, 5V and 7V fixed voltage version. The AP7381 is available in space-saving SOT23, SOT89 and TO92 (Ammo Packing) packages.  Wide Input Voltage Range: Up to 40V  Low Dropout Voltage: VDROP = 1000mV @ IOUT = 100mA @ VOUT = 3.3V  Low Ground Current  High Output Voltage Accuracy  Compatible with Low ESR Ceramic Capacitor  Excellent Line/Load Regulation  Thermal Shutdown Function  Short Current Protection Function  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Applications  E-meters  Battery-powered equipments  Laptops, palmtops, notebook computers  Portable information appliances #AP7381 #LDORegulator #VoltageRegulator #PowerManagement #LinearRegulator #DiodesIncorporated #3V3Regulator #EmbeddedSystems #ElectronicsDesign #CircuitDesign #PMIC #LowPowerDesign ## Component Details - **Owner:** adrian95 - **Created:** 6/8/2026 - **Last Updated:** 6/8/2026 - **Visibility:** Public - **Part Type:** Linear Regulator - **Symbol Style:** parametric-v1 - **Manufacturer Part Number:** AP7381-33V-A - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/f96ae8e45c38172ea7112d78b95e4c92503c7ffae770181abae7219cbadf1b13.pdf - **Manufacturer Name:** Diodes Incorporated ## 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/C3745132.html) | N/A | N/A | | [Mouser](https://www.mouser.com/ProductDetail/Diodes-Incorporated/AP7381-33V-A?qs=1mbolxNpo8cFZwU4HR7fJA%3D%3D) | $0.29 | 4.7K | - **Part Type:** Other - **Manufacturer:** Diodes - **MPN:** AP7381-33V-A - **Package / Case Code:** 92-TO - **Pin Count:** 3 - **Compliance:** Rohs, AEC-Q100, Green, Halogen Free, Antimony Free, Lead Free ## Pins | Pin | Name | Type | |-----|------|------| | 1 | VOUT | | | 2 | GND | | | 3 | VIN | | --- *Generated from [https://www.flux.ai/adrian95/ap7381-33v-a](https://www.flux.ai/adrian95/ap7381-33v-a)*