ADP121-AUJZ15R7 Analog Devices Integrated Circuit (SOT23 (5-Pin)) In Stock
Analog Devices ADP121-AUJZ15R7 is a 150 mA CMOS LDO linear regulator with a fixed 1.5 V output and 120 mV typical dropout voltage. It operates from a 2.3 V to 5.5 V input supply in a compact SOT-23-5 package. Suitable for portable consumer electronics, IoT modules, and battery-powered sensor nodes requiring low-noise power rails.
- Manufacturer
- Analog Devices
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- ADP121-AUJZ15R7 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4000(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ADP121-AUJZ15R7?
- Fixed 1.5 V output with tight ±1% accuracy
- 150 mA output current with only 120 mV typical dropout voltage
- 2.3 V to 5.5 V input voltage range supporting single-cell Li-ion and USB supplies
- Ultra-low quiescent current for extended battery life in portable designs
- SOT-23-5 package enabling compact PCB footprint
- CMOS process for low noise, ideal for RF and analog front-end power rails
What is ADP121-AUJZ15R7 used for?
The ADP121-AUJZ15R7 is commonly used to power analog and RF subsystems in portable consumer devices, wireless IoT sensor nodes, and wearable electronics where a clean 1.5 V supply rail is needed. Its low dropout voltage and minimal quiescent current make it well suited for single-cell battery-powered designs and always-on standby circuits.
What are the specifications of ADP121-AUJZ15R7?
| Pbfree Code | No |
| Manufacturer Package Code | UJ-5 |
| YTEOL | 10 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.18V |
| Dropout Voltage1-Nom | 0.12V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.3V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0016% |
| Load Regulation-Max | 0.0112% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 1.545V |
| Output Voltage1-Min | 1.455V |
| Output Voltage1-Nom | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Where can I find the ADP121-AUJZ15R7 datasheet?
ADP121-AUJZ15R7 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for ADP121-AUJZ15R7?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Can the ADP121-AUJZ15R7 supply an RF front-end module from a single-cell Li-ion battery?
Yes. The ADP121-AUJZ15R7 accepts an input from 2.3 V to 5.5 V, so it operates directly from a single-cell Li-ion battery (typically 3.0 V to 4.2 V) and delivers a stable 1.5 V output at up to 150 mA, covering most low-power RF modules and analog front ends.
How low is the dropout voltage of the ADP121-AUJZ15R7 at full load, and why does it matter for battery-end-of-life headroom?
At full 150 mA load, the ADP121-AUJZ15R7 has a typical dropout voltage of 120 mV and a maximum of 180 mV. This small headroom means the regulator continues delivering a regulated 1.5 V output even when the supply drops close to 1.68 V, extending usable battery runtime.
What PCB footprint does the SOT-23-5 package of the ADP121-AUJZ15R7 require for space-constrained wearable designs?
The ADP121-AUJZ15R7 uses a 5-pin SOT-23 package (Analog Devices code UJ-5), which occupies roughly 1.6 mm x 2.9 mm of board area. This compact 5-pin footprint makes it practical for wearable and IoT designs where PCB space is limited.
Is the ADP121-AUJZ15R7 RoHS compliant for designs targeting EU markets?
The ADP121-AUJZ15R7 carries a Pb-free code of No in the distributor data, indicating it is not marked lead-free in this version. Engineers targeting RoHS-compliant designs for EU markets should verify the JESD-609 compliance status with the Analog Devices datasheet before committing to this part.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.6201 | $155.03 |
| 500+ | $0.5949 | $297.44 |
| 1000+ | $0.5355 | $535.50 |
| 3000+ | $0.4709 | $1412.58 |
| 6000+ | $0.4375 | $2625.30 |
| 100000+ | $0.4000 | $40000.00 |
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