STMicroelectronics LDK220U32R
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.88 | $0.88 |
| 15+ | $0.20 | $3.00 |
| 25+ | $0.20 | $5.00 |
| 50+ | $0.19 | $9.50 |
| 100+ | $0.17 | $17.00 |
| N+ | $0.03 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | |
| Packaging | 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) | - |
| 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 LDK220U32R from STMicroelectronics is a 200mA low dropout linear regulator with a fixed 3.2V output. It features a low 90 µA quiescent current and PSRR of 55dB at 120Hz, making it suitable for industrial and automotive applications. The SOT-89 package ensures good thermal performance.
- Robust Thermal Performance: SOT-89 package dissipates heat effectively for reliable operation.
- Low Power Loss: 90 µA quiescent current reduces energy waste in standby mode.
- Good Ripple Suppression: 55dB PSRR at 120Hz filters mains-frequency noise.
- Wide Application Range: Suitable for industrial, automotive, and consumer electronics.
Industrial Control Systems
SOT-89 package provides excellent thermal dissipation for 200mA loads in PLCs, motor controllers, and industrial sensors.
Automotive Electronics
Stable 3.2V output for infotainment, dashboard clusters, and body control modules operating in harsh environments.
Power Supply Post-Regulation
Reduces switching noise from DC-DC converters, providing clean power for analog and mixed-signal circuits.
Home Appliances
Reliable regulation for microcontrollers in washing machines, refrigerators, and smart home hubs.
Telecom Equipment
Powers line cards, routers, and base stations with consistent 3.2V rails for digital logic.
Medical Devices
Low quiescent current and stable output support portable patient monitors and diagnostic tools.
- Q: What is the output voltage of the LDK220U32R?
- A: The fixed output voltage is 3.2V.
- Q: What is the maximum output current?
- A: It can deliver up to 200mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for full specifications.
- Q: What is the quiescent current?
- A: The quiescent current is 90 µA.
- Q: What is the PSRR performance?
- A: PSRR is 55dB at 120Hz and 50dB at 10kHz.
- Q: What package is available?
- A: It comes in a SOT-89 package.
- Q: What is the output voltage of the LDK220U32R?
- A: The fixed output voltage is 3.2V.
- Q: What is the maximum output current?
- A: It can deliver up to 200mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for full specifications.
- Q: What is the quiescent current?
- A: The quiescent current is 90 µA.
- Q: What is the PSRR performance?
- A: PSRR is 55dB at 120Hz and 50dB at 10kHz.
- Q: What package is available?
- A: It comes in a SOT-89 package.

LDK220U32R.pdf