Analog Devices Inc. LT1121IZ-3.3#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.91 | $6.91 |
| 15+ | $6.69 | $100.35 |
| 25+ | $6.54 | $163.50 |
| 50+ | $6.18 | $309.00 |
| 100+ | $5.45 | $545.00 |
| N+ | $1.09 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Bag | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.7V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 50 µA |
| Current - Supply (Max) | 14 mA |
| PSRR | 58dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 |
| ROHS |  |
The LT1121IZ-3.3#PBF is a low dropout linear regulator from Analog Devices, delivering a fixed 3.3V output at up to 150mA. Its 50µA quiescent current and 0.7V dropout voltage make it ideal for battery-operated and industrial applications. The TO-92-3 package ensures easy integration into compact designs.
- Extended Battery Life: 50µA quiescent current minimizes standby drain, ideal for portable devices.
- Low Dropout Operation: 0.7V dropout at 150mA allows efficient regulation from lower input rails.
- Stable Output: 58dB PSRR at 120Hz rejects ripple, ensuring clean power for sensitive circuits.
- Compact Package: TO-92-3 fits space-constrained designs without sacrificing performance.
Battery-Powered Equipment
The low 50µA quiescent current extends battery life in portable devices like remote sensors and handheld instruments, where standby power is critical.
Automotive Electronics
With a wide input range and 150mA output, it can regulate 3.3V logic rails in automotive body control modules, surviving load-dump transients.
Industrial Control Systems
Its low dropout of 0.7V allows operation from a 4V rail, providing a stable 3.3V supply for microcontrollers in noisy industrial environments.
Telecom Infrastructure
The 58dB PSRR at 120Hz filters mains ripple, ensuring clean power for analog front-ends in base station monitoring circuits.
Portable Medical Devices
Low noise and stable output make it suitable for glucose monitors and hearing aids, where consistent voltage is essential for accurate readings.
Reference Voltage Source
Its precision 3.3V output can serve as a reference for ADCs in data acquisition systems, maintaining accuracy over temperature.
- Q: What is the output voltage of the LT1121IZ-3.3#PBF?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 30V (not explicitly provided, typical for this device).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.7V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 50µA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
LT1121IZ-3.3#PBF.pdf
- Q: What is the output voltage of the LT1121IZ-3.3#PBF?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 30V (not explicitly provided, typical for this device).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.7V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 50µA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
