STMicroelectronics LDK220M27R
| 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) | 2.7V |
| 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 LDK220M27R from STMicroelectronics is a fixed 2.7V low dropout linear regulator capable of delivering 200mA. It features a low dropout voltage of 0.35V at full load and a quiescent current of just 90 µA, making it suitable for battery-operated devices. The regulator offers good ripple rejection of 55dB at 120Hz and is housed in a compact SOT-23-5 package, ideal for space-constrained applications.
- Extended Battery Life: The 90 µA quiescent current minimizes standby power draw, ideal for always-on IoT devices.
- High Efficiency at Low Dropout: A 0.35V dropout at 200mA allows operation from nearly depleted batteries, maximizing usable capacity.
- Clean Output Power: 55dB PSRR at 120Hz effectively filters mains-related noise in portable audio and sensor applications.
- Compact Footprint: The SOT-23-5 package saves PCB space for miniaturized wearable designs.
Battery-Powered IoT Sensors
The low 90 µA quiescent current and 200mA output make it ideal for extending battery life in wireless sensors that require a stable 2.7V rail for microcontrollers and RF transceivers.
Portable Medical Devices
Its stable 2.7V output and low dropout voltage ensure reliable operation for glucose monitors and pulse oximeters, even as the battery voltage declines.
Wearable Electronics
The compact SOT-23-5 package and 55dB PSRR at 120Hz help suppress power supply noise in smartwatches and fitness trackers, maintaining clean power for sensitive analog front-ends.
Industrial Control Modules
With a 0.35V dropout at full load, it efficiently regulates 3.3V down to 2.7V for industrial sensor interfaces, reducing heat dissipation in enclosed control cabinets.
Audio Equipment Bias Supplies
The 50dB PSRR at 10kHz helps filter high-frequency switching noise, making it suitable for biasing op-amps in portable audio DACs and headphone amplifiers.
Automotive Interior Lighting
Its ability to operate from a 2.7V input and deliver 200mA makes it useful for LED driver control logic in dashboard lighting systems, ensuring consistent brightness.
- Q: What is the output voltage of the LDK220M27R?
- A: The LDK220M27R provides a fixed output voltage of 2.7V.
- Q: What is the maximum output current?
- A: It can deliver up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V up to the absolute maximum rating (typically 5.5V for this series).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 90 µA.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.
LDK220M27R.pdf
- Q: What is the output voltage of the LDK220M27R?
- A: The LDK220M27R provides a fixed output voltage of 2.7V.
- Q: What is the maximum output current?
- A: It can deliver up to 200mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V up to the absolute maximum rating (typically 5.5V for this series).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 90 µA.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.
