Key facts
- Brand
- Analog Devices
- Model
- ADP121
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-04
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Analog Devices ADP121 Linear Regulator Datasheet Handbook Rev E
The ADP121 is a CMOS linear regulator that delivers up to 150 mA with very low quiescent current (30 µA typical) and a dropout voltage as low as 90 mV at full load. It features high PSRR (70 dB @1 kHz), low output noise (40 pV rms) and built‑in current‑limit and thermal‑overload protection.
Designed for battery‑powered portable equipment, the device is offered in a 5‑lead TSOT package and a 4‑ball 0.4 mm pitch WLCSP package, both optimized for small board area and stable operation with 1 µF ceramic capacitors.
Analog Devices ADP121 specifications
| Input voltage range | 2.3 V to 5.5 V |
|---|---|
| Output voltage range | 1.2 V to 3.3 V |
| Maximum output current | 150 mA |
| Quiescent current (typical) | 30 µA at 150 mA load |
| Shutdown current | <1 pA |
| Dropout voltage (TSOT, 150 mA) | 90 mV |
| Package options | 5‑lead TSOT, 4‑ball 0.4 mm pitch WLCSP |
| Thermal resistance (TSOT) | 43 °C/W |
| Thermal resistance (WLCSP) | 58 °C/W |
Source: Analog Devices ADP121 Linear Regulator Datasheet Handbook Rev E
All Analog Devices ADP121 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum output current of the ADP121?
The ADP121 can supply up to 150 mA of output current.
From: Analog Devices ADP121 Linear Regulator Datasheet Handbook Rev E
What is the typical quiescent current at full load?
Typical quiescent current is 30 µA when delivering 150 mA.
From: Analog Devices ADP121 Linear Regulator Datasheet Handbook Rev E
What is the maximum output current of the ADP121?
The ADP121 can deliver up to 150 mA of output current.
What is the dropout voltage at a 150 mA load?
The dropout voltage is 90 mV for the TSOT package (135 mV for the WLCSP package).