Fairchild Semiconductor FAN2558S35X
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.64 | $1.64 |
| 15+ | $0.38 | $5.70 |
| 25+ | $0.37 | $9.25 |
| 50+ | $0.35 | $17.50 |
| 100+ | $0.31 | $31.00 |
| N+ | $0.06 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 3.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | - |
| Current - Output | 180mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | - |
| PSRR | 50dB (100kHz) |
| Control Features | Enable, Power Good |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |
The FAN2558S35X from Fairchild Semiconductor is a fixed 3.5V, low-dropout linear regulator capable of delivering 180mA. It features a low quiescent current of 150 µA, making it suitable for battery-powered applications. With a PSRR of 50dB at 100kHz, it effectively filters high-frequency noise. The device is housed in a compact SOT-23-5 package, ideal for space-constrained designs.
- Low Power Consumption: 150 µA quiescent current extends battery life in portable devices.
- High-Frequency Noise Rejection: 50dB PSRR at 100kHz ensures clean power for RF and high-speed digital circuits.
- Compact Footprint: SOT-23-5 package is ideal for miniaturized electronic designs.
- Reliable Performance: Fixed 3.5V output ensures consistent operation of downstream components.
Portable Battery Devices
The FAN2558S35X's 3.5V output and 150 µA quiescent current make it ideal for powering low-power microcontrollers in handheld devices, maximizing battery life.
RF Power Amplifiers
With 50dB PSRR at 100kHz, this LDO provides a clean supply for RF power amplifiers, reducing spurious emissions and improving signal integrity.
Memory Card Interfaces
The 3.5V rail is suitable for powering SD cards and other memory interfaces, ensuring reliable read/write operations in portable electronics.
Sensor Modules
This regulator can power MEMS sensors and signal conditioning circuits, providing a stable 3.5V supply for accurate measurements.
LED Drivers
It can be used to power low-current LED drivers or indicator lights, providing a regulated voltage for consistent brightness.
Battery Management Systems
In battery monitoring circuits, this LDO provides a stable reference voltage for analog-to-digital converters, improving measurement accuracy.
- Q: What is the output voltage of the FAN2558S35X?
- A: This is a fixed 3.5V output LDO regulator.
- Q: What is the maximum output current?
- A: It can deliver up to 180mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What is the PSRR?
- A: The PSRR is 50dB at 100kHz, providing good high-frequency noise rejection.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.
- Q: What is the output voltage of the FAN2558S35X?
- A: This is a fixed 3.5V output LDO regulator.
- Q: What is the maximum output current?
- A: It can deliver up to 180mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What is the PSRR?
- A: The PSRR is 50dB at 100kHz, providing good high-frequency noise rejection.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.

FAN2558S35X.pdf