onsemi LP2950CDT-3.3RKG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.14 | $1.14 |
| 15+ | $1.10 | $16.50 |
| 25+ | $1.08 | $27.00 |
| 50+ | $1.02 | $51.00 |
| 100+ | $0.90 | $90.00 |
| N+ | $0.18 | 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) | 30V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.45V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 120 µA |
| Current - Supply (Max) | 12 mA |
| PSRR | - |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | DPAK |
| ROHS |  |
The LP2950CDT-3.3RKG from onsemi is a fixed 3.3V low dropout linear regulator delivering up to 100mA. Its ultra-low 120µA quiescent current and 0.45V dropout make it an excellent choice for battery-powered and always-on applications. Housed in a DPAK package, it offers robust thermal performance and reliable operation across industrial and automotive temperature ranges.
- Extended Battery Life: Ultra-low 120µA quiescent current minimizes standby power consumption, ideal for portable devices.
- Low Dropout Operation: 0.45V dropout at 100mA allows regulation even with small input-to-output voltage margins, maximizing usable battery capacity.
- Stable 3.3V Output: Fixed output eliminates external resistor dividers, simplifying design and improving accuracy.
- Robust DPAK Package: Excellent thermal dissipation for reliable operation in demanding environments.
Battery-Powered Portable Devices
The LP2950CDT-3.3RKG's low 120µA quiescent current and 100mA output make it ideal for extending battery life in handheld instruments, remote sensors, and wearable electronics where every microamp matters.
Microcontroller Power Supplies
With a fixed 3.3V output and low dropout of 0.45V, this regulator provides a clean, stable supply for 3.3V logic and MCU cores, ensuring reliable operation even as the battery voltage declines.
Automotive ECU Reference Supplies
The DPAK package and robust onsemi design allow operation in harsh automotive environments, providing a stable 3.3V rail for sensors, ADCs, and control modules.
Industrial Sensor Interfaces
Low noise and excellent line regulation make this LDO suitable for powering precision analog front-ends in industrial process control, where voltage stability directly impacts measurement accuracy.
Standby and Always-On Circuits
The ultra-low quiescent current enables always-on domains in appliances and smart home devices, maintaining memory and wake-up logic with minimal power draw.
Post-Regulation for Switching Converters
Use after a buck converter to remove ripple and provide a clean 3.3V rail for noise-sensitive audio or RF circuits, leveraging the LDO's low dropout and fast transient response.
- Q: What is the output voltage of the LP2950CDT-3.3RKG?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is up to 30V (absolute maximum), with a typical dropout of 0.45V at 100mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.45V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 120µA.
- Q: What package is available?
- A: This device comes in a DPAK (TO-252) package.
LP2950CDT-3.3RKG.pdf
- Q: What is the output voltage of the LP2950CDT-3.3RKG?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is up to 30V (absolute maximum), with a typical dropout of 0.45V at 100mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.45V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 120µA.
- Q: What package is available?
- A: This device comes in a DPAK (TO-252) package.
