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LD1117STR
+Lista de MateriaisIC REG LIN POS ADJ 800MA SOT223
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FabricanteSTMicroeletrônica
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Peça do Fabricante #LD1117STR
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Ficha Técnica LD1117STR DataSheet
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Pacote SOT-223
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 15V |
| Voltage-Output(Min/Fixed) | 1.25V |
| Voltage-Output(Max) | 15V |
| VoltageDropout(Max) | 1.2V @ 800mA |
| Current-Output | 800mA |
| Current-Quiescent(Iq) | 5 mA |
| PSRR | 75dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
Visão Geral
Description
Key features of the LD1117STR include:
1. Low Dropout Voltage: It operates with a dropout voltage as low as 1.2V at full load, making it suitable for low-voltage applications.
2. Output Current Capability: It can deliver up to 800mA of output current, supporting power requirements for various electronic devices.
3. Output Voltage Options: Available in multiple output voltage versions, such as 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and adjustable, to suit different needs.
4. Thermal Protection: Includes thermal shutdown and current limiting features to prevent damage due to overheating or overcurrent conditions.
5. Package Type: Typically available in a TO-220, SOT-223, or similar package for easy integration into printed circuit boards (PCBs).
The LD1117STR is widely used in consumer electronics, telecommunications, and industrial applications.
Equivalent
1. LM1117: A widely used 1A low dropout regulator.
2. AMS1117: Similar specifications, often used as a replacement.
3. MIC29152: Offers similar functionality with slight variations.
4. NCP1117: By ON Semiconductor, also compatible.
5. AP1117: An alternative with comparable performance.
Always verify electrical characteristics and pin configurations before substituting to ensure compatibility.
Features
1. Output Current: It can deliver an output current up to 800 mA.
2. Dropout Voltage: It has a low dropout voltage, typically around 1.2V at maximum output current.
3. Output Voltage: It provides a fixed output voltage option, usually available in common values like 1.2V, 1.8V, 2.5V, 3.3V, and 5V.
4. Voltage Regulation: It offers good line and load regulation to maintain a stable output voltage.
5. Thermal Protection: The device includes built-in thermal shutdown to prevent overheating.
6. Current Limitation: It features overcurrent protection, safeguarding against load faults.
7. Package: Available in a SOT-223 package, which allows for efficient heat dissipation.
8. Stability: Requires a minimum output capacitor for stable operation, typically 10 µF.
9. Temperature Range: Operates over a wide temperature range, usually from -40°C to +125°C.
These features make the LD1117STR suitable for applications requiring reliable voltage regulation with low dropout and moderate current capability.
Pinout
1. Input (Vin): This pin receives the input voltage, which must be higher than the desired output voltage.
2. Ground (GND): This is the common ground reference for both the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage.
The LD1117STR is commonly used for applications requiring a stable voltage output with low dropout, meaning it can maintain regulation with a minimal difference between input and output voltages. It is suitable for various electronic devices and circuits where efficient voltage regulation is essential.
Manufacturer
Application
1. Consumer Electronics: Provides stable voltage for devices like smartphones and tablets.
2. Computing: Used in motherboards and peripherals for powering processors and memory modules.
3. Telecommunications: Powers RF circuits and other critical components in networking equipment.
4. Industrial Automation: Provides reliable power for sensors and control systems.
5. Automotive: Used in infotainment systems and other electronic control units.
6. Medical Devices: Ensures stable power supply for portable and sensitive medical equipment.
These areas benefit from the LD1117STR’s efficiency, low noise, and precision voltage regulation.