# ADP121\-AUJZ33R7 (Component)

## Description

Ultra\-Low Quiescent Current LDO Voltage Regulator – Fixed 3\.3 V low\-dropout \(LDO\) linear voltage regulator delivering up to 150 mA output current for battery\-powered devices, portable electronics, sensors, wireless modules, and embedded systems\. Operates from a 2\.3 V to 5\.5 V input voltage and features an ultra\-low 21 µA typical quiescent current, 135 mV maximum dropout voltage at 150 mA, and 60 dB PSRR at 10 kHz for efficient, low\-noise power regulation\. Includes an enable \(EN\) input, low shutdown current \(\<1 µA typical\), overcurrent protection, thermal shutdown, and undervoltage lockout \(UVLO\)\. Optimized for use with 1 µF ceramic capacitors, operates over a −40°C to \+125°C temperature range, and is housed in a 5\-pin TSOT\-23 package\.

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## Component Details

- **Owner:** silicon\-yard
- **Created:** 7/26/2026
- **Last Updated:** 7/26/2026
- **Visibility:** Public
- **Manufacturer Part Number:** ADP121\-AUJZ33R7
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/af5892530d3d57bbeddfb59557872b9bb28843e9aa1f3a5aa6abf87c9f67439c\.pdf
- **Part Type:** Linear Regulator
- **Manufacturer Name:** Analog Devices
- **Used in:** 68 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 |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/adp121-aujz33r7/analog-devices.html?utm_currency=USD&region=asia) | $1\.1127 | 261 |
| [Digi\-Key](https://www.digikey.com/en/products/detail/analog-devices-inc/ADP121-AUJZ33R7/1938217) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C50499.html) | $1\.0923 | 69 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Analog-Devices/ADP121-AUJZ33R7?qs=BpaRKvA4VqHby1qhPTxfCw%253D%253D) | $1\.38 | 4\.8K |
| [Verical](https://www.verical.com/pd/analog-devices-linear-regulator-ADP121-AUJZ33R7-317748?utm_currency=USD) | N/A | N/A |

- **Part Type:** Other
- **Manufacturer:** Analog Devices
- **MPN:** ADP121\-AUJZ33R7
- **Mount Type:** Wire
- **Package / Case Code:** TSOT\-23
- **Pin Count:** 5
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | VIN | Unspecified |
| 2 | GND | Unspecified |
| 3 | EN | Unspecified |
| 4 | NC | Unspecified |
| 5 | VOUT | Unspecified |

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*Generated from [https://flux\.ai/silicon\-yard/adp121\-aujz33r7](https://flux.ai/silicon-yard/adp121-aujz33r7)*