| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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50 pcs
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50 pcs | On Request | 1 | On Request | On Request | 98+ | On Request | On Request |
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The LT1121IST5 is a micropower low dropout regulator with shutdown capability, manufactured by Linear Technology. It is designed for battery-powered systems, featuring a low quiescent current of 30µA during operation and 16µA in shutdown mode. This regulator provides an output current of up to 150mA with a typical dropout voltage of 0.4V.
Key electrical specifications include fixed output voltages of 3.3V and 5V, with an adjustable output option available. The device operates with an input voltage range from 4.17V to 36V. It is stable with small output capacitors as low as 0.33µF, which enhances manufacturability. The LT1121IST5 also includes features like reverse battery protection and thermal limiting.
This component is available in a 3-lead SOT-223 surface mount package. Its low quiescent current and stable operation with minimal external components make it suitable for various low-power applications, including low current regulators and post-regulators for switching supplies.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.28 | $0.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The typical output current of the LT1121IST5 is 150mA.
The LT1121IST5 offers output voltages of 3.3V and 5V.
The maximum input voltage for the LT1121IST5 is 36V.
The minimum input voltage for the LT1121IST5 is 4.17V.
The operating temperature range of the LT1121IST5 is -40°C to 125°C.
The LT1121IST5 is provided in a SOT-223 package.
The LT1121IST5 has 3 pins.