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The ADP121-AUJZ12R7 from Analog Devices is a low quiescent current, low dropout linear regulator designed for battery-powered applications. It operates from an input voltage range of 2.3V to 5.5V and delivers a stable 1.2V output with an output current capability of up to 150mA.
Key electrical specifications include a low quiescent current of 11μA with no load and 30μA at full load, improving battery life. The device boasts a low dropout voltage of 90mV at 150mA load, enhancing efficiency. It also offers high Power Supply Rejection Ratio (PSRR) of 70dB at 10kHz and low noise performance of 40μV rms, making it suitable for sensitive applications.
Protection features such as current limit and thermal overload protection are integrated to safeguard the device and the system. The regulator is stable with a small 1μF ceramic output capacitor and features logic-controlled enable for flexible power management.
Packaged in a 5-lead TSOT package, the ADP121-AUJZ12R7 is designed for surface mounting, offering a compact solution for portable electronic devices, mobile phones, and post DC-to-DC regulation applications.
| Qty | Low | High |
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| 1+ | $0.28 | $0.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The ADP121-AUJZ12R7 has a fixed output voltage of 1.2V.
The maximum output current is 150mA.
The input voltage range is 2.3V to 5.5V.
The operating temperature range is -40°C to 125°C.
It is available in a SOT-23-5 Thin / TSOT-23-5 surface-mount package.
The typical dropout voltage is 90mV at a 150mA load.
Yes, it includes an enable control feature.