STMicroelectronics LDK220M-R
| 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 | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 13.2V |
| Voltage - Output (Min/Fixed) | - |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 200mA |
| Current - Output | 200mA |
| Current - Quiescent (Iq) | 90 µA |
| Current - Supply (Max) | 100 µA |
| PSRR | 60dB ~ 45dB (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 STMicroelectronics LDK220M-R is a low dropout linear regulator capable of delivering 200mA with a dropout of only 0.35V. It features a low quiescent current of 90µA and excellent power supply rejection of 60dB at 120Hz, making it ideal for noise-sensitive applications. Housed in a compact SOT-23-5 package, it is designed for portable and battery-powered electronics where efficiency and space are critical.
- Excellent Noise Rejection: 60dB PSRR at 120Hz ensures clean output for audio and RF circuits.
- Low Power Consumption: 90µA quiescent current extends battery life in standby mode.
- Compact Footprint: SOT-23-5 package saves PCB area.
- Low Dropout: 0.35V at 200mA allows operation from nearly depleted batteries.
Battery-Powered Audio Equipment
With 60dB PSRR at 120Hz, it effectively filters mains hum in portable speakers and audio interfaces.
Low-Power Microcontrollers
The 200mA output and 90µA quiescent current support sleep-mode MCUs in remote controls and smart sensors.
Automotive Interior Electronics
SOT-23-5 package and stable operation make it suitable for infotainment and dashboard modules requiring clean rails.
Industrial Sensor Interfaces
Provides a low-noise supply for analog front-ends, improving measurement accuracy in process control.
Wearable Health Monitors
Low dropout and small footprint enable efficient power delivery in fitness bands and medical patches.
Communication Modules
Maintains stable voltage for RF transceivers, reducing spurious emissions through good PSRR.
- Q: What is the output voltage of the LDK220M-R?
- A: The output voltage is not specified in the provided data; it is likely adjustable or fixed, please check the datasheet.
- Q: What is the maximum output current?
- A: It can provide up to 200mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data.
- Q: What is the dropout voltage?
- A: Dropout is typically 0.35V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 90µA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 120Hz and 45dB at 10kHz.
- Q: What is the output voltage of the LDK220M-R?
- A: The output voltage is not specified in the provided data; it is likely adjustable or fixed, please check the datasheet.
- Q: What is the maximum output current?
- A: It can provide up to 200mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data.
- Q: What is the dropout voltage?
- A: Dropout is typically 0.35V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 90µA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 120Hz and 45dB at 10kHz.

LDK220M-R.pdf