onsemi NCP551SN33T1G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.91 | $0.91 |
| 15+ | $0.88 | $13.20 |
| 25+ | $0.86 | $21.50 |
| 50+ | $0.82 | $41.00 |
| 100+ | $0.72 | $72.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.15V @ 10mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 8 µA |
| Current - Supply (Max) | 8 µA |
| PSRR | - |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-5 Thin, TSOT-23-5 |
| Supplier Device Package | 5-TSOP |
| ROHS |
The NCP551SN33T1G from onsemi is a 150mA low dropout linear regulator with a fixed 3.3V output. Its standout feature is an ultra-low quiescent current of 8 µA, making it ideal for battery-powered and energy-sensitive applications. The 5-TSOP package is compact, and the low dropout voltage of 0.15V at 10mA ensures efficient operation even with minimal input-to-output differential.
- Ultra-Low Quiescent Current: 8 µA extends battery life in portable devices.
- Low Dropout Voltage: 0.15V at 10mA allows operation from nearly depleted batteries.
- Compact Package: 5-TSOP saves space in miniaturized designs.
- Wide Input Range: Supports up to 12V input, providing design flexibility.
Wearable Devices
The ultra-low 8 µA quiescent current makes it perfect for smartwatches and fitness trackers, maximizing battery life during standby.
IoT Sensors
Ideal for battery-powered wireless sensors that need a stable 3.3V rail with minimal power draw, extending deployment intervals.
Portable Medical Monitors
Low dropout of 0.15V at 10mA ensures efficient operation from a single lithium cell, powering glucose monitors and pulse oximeters.
Remote Controls
Provides a regulated 3.3V supply for IR and RF remote controls, ensuring consistent performance as batteries discharge.
Energy Harvesting Systems
With its low quiescent current, it suits energy harvesting applications where every microamp counts, regulating output from solar or thermal sources.
Memory Backup Circuits
Maintains voltage for SRAM or RTC backup, with ultra-low current draw to preserve battery life.
- Q: What is the output voltage of the NCP551SN33T1G?
- 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 3.45V to 12V (based on 3.3V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.15V at 10mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 8 µA.
- Q: What package is available?
- A: It comes in a 5-TSOP package.
- Q: What is the output voltage of the NCP551SN33T1G?
- 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 3.45V to 12V (based on 3.3V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.15V at 10mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 8 µA.
- Q: What package is available?
- A: It comes in a 5-TSOP package.

NCP551SN33T1G.pdf