STMicroelectronics LDK220U33R
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.71 | $0.71 |
| 15+ | $0.47 | $7.05 |
| 25+ | $0.46 | $11.50 |
| 50+ | $0.43 | $21.50 |
| 100+ | $0.38 | $38.00 |
| N+ | $0.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 13.2V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 200mA |
| Current - Output | 200mA |
| Current - Quiescent (Iq) | 90 µA |
| Current - Supply (Max) | 100 µA |
| PSRR | 55dB ~ 50dB (120Hz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89 |
| ROHS |  |
The LDK220U33R from STMicroelectronics is a fixed 3.3V low dropout linear regulator offering 200mA output current. Its ultra-low quiescent current of 90µA makes it ideal for battery-powered applications. The SOT-89 package provides a compact solution with a dropout voltage of just 0.35V at full load.
- Ultra-Low Quiescent Current: 90µA extends battery life in portable and standby applications, making it perfect for always-on devices.
- Low Dropout Voltage: 0.35V at 200mA allows operation from nearly depleted batteries, maximizing energy harvest.
- Compact SOT-89 Package: Small footprint with good thermal performance for space-constrained designs.
- Stable Output: 55dB PSRR ensures clean 3.3V supply for sensitive analog and RF circuits.
Battery-Powered IoT Sensors
The LDK220U33R's 90µA quiescent current is ideal for battery-operated IoT devices. Its low dropout of 0.35V at 200mA maximizes usable battery capacity, extending operational life between charges.
Wearable Electronics
Wearables require compact, efficient power management. The SOT-89 package and 200mA output are well-suited for powering microcontrollers, Bluetooth modules, and MEMS sensors in smartwatches and fitness trackers.
Portable Medical Devices
Medical devices demand stable, noise-free power. With 55dB PSRR at 120Hz, this LDO provides clean 3.3V rails for glucose monitors, hearing aids, and portable diagnostic equipment.
Automotive Body Electronics
In automotive systems, this regulator can power CAN transceivers and sensor interfaces. Its low quiescent current helps meet standby power requirements in always-on modules.
Smart Home Controllers
Smart thermostats and security panels benefit from the LDK220U33R's efficiency. The low dropout ensures stable 3.3V output even when powered from a 3.6V lithium battery.
RF and Wireless Modules
Wireless modules (Wi-Fi, BLE) need clean power for optimal RF performance. This LDO's low noise characteristics help maintain signal integrity and reduce transmission errors.
- Q: What is the output voltage of the LDK220U33R?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can provide up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.35V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 90µA.
- Q: What package is available?
- A: It comes in a SOT-89 package.
LDK220U33R.pdf
- Q: What is the output voltage of the LDK220U33R?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can provide up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.35V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 90µA.
- Q: What package is available?
- A: It comes in a SOT-89 package.
