STMicroelectronics LDK220M32R
| 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) | 3.2V |
| 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 |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LDK220M32R from STMicroelectronics is a low dropout linear regulator delivering a fixed 3.2V output with up to 200mA of current. Its low 90 µA quiescent current and 0.35V dropout at full load make it an efficient choice for battery-powered and portable designs. Housed in a compact SOT-23-5 package, it offers a practical solution for space-limited applications requiring stable voltage regulation.
- Extended Battery Life: Ultra-low 90 µA quiescent current minimizes standby power draw, ideal for portable devices.
- High Efficiency at Low Dropout: 0.35V dropout at 200mA allows operation close to the battery voltage, reducing power loss.
- Compact Footprint: SOT-23-5 package saves PCB space for miniaturized designs.
- Stable Output: PSRR of 55dB at 120Hz filters low-frequency noise, ensuring clean power for sensitive loads.
Battery-Powered IoT Sensors
The low 90 µA quiescent current and 200mA output capability make it ideal for always-on IoT sensor nodes, extending battery life while powering microcontrollers and sensors.
Portable Medical Devices
With a stable 3.2V output and low dropout of 0.35V, this regulator ensures reliable operation in battery-operated glucose monitors and pulse oximeters, even as the battery discharges.
Wearable Electronics
The compact SOT-23-5 package fits space-constrained wearables, providing clean power to Bluetooth LE modules and display drivers without excessive heat dissipation.
Industrial Control Modules
For factory automation sensors requiring a regulated 3.2V rail, the LDK220M32R offers stable performance across load transients, with PSRR of 55dB at 120Hz to reject mains hum.
Smart Home Hubs
Powering Zigbee or Thread radios, this LDO maintains a clean 3.2V supply, reducing noise coupling into RF sections and improving wireless link reliability.
- Q: What is the output voltage of the LDK220M32R?
- A: The LDK220M32R provides a fixed output voltage of 3.2V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet for exact limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.35V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 90 µA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: The LDK220M32R is available in a SOT-23-5 package.
LDK220M32R.pdf
- Q: What is the output voltage of the LDK220M32R?
- A: The LDK220M32R provides a fixed output voltage of 3.2V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet for exact limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.35V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 90 µA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: The LDK220M32R is available in a SOT-23-5 package.
