Discrete Electronic Components, General ICs, ICs
LM1117 LD1117V33 Linear Voltage Regulator Outputs 3.3V IC
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The LD1117 is a low dropout, 3-terminal positive voltage regulator designed to provide output current up to 1A in a TO-220 package.
Features include
- Low dropout voltage
- Output current up to 1.0A
- Built-in current limit and over temperature protection
- Low current consumption
Uses of LM1117 IC?
Just like the famous 7805 and LM317, the LM1117 is another Linear Voltage regulator. It is known for its small form factor since it is available as a DCY Package (SMD Component). There are many types of LM1117, the fixed types provide a fixed output voltage of 1.8V, 2.5V, 3.3V or 5V and the variable voltage regulator can have a variable voltage from 1.25V to 13.8V.
Pin Configuration
| Pin Number | Pin Name | Description |
| 1 | Adjust/Ground | This pins adjusts the output voltage, if it is a fixed voltage regulator it acts as ground |
| 2 | Output Voltage (Vout) | The regulated output voltage set by the adjust pin can be obtained from this pin |
| 3 | Input Voltage (Vin) | The input voltage which has to be regulated is given to this pin |
Applications:
- Used for Positive voltage regulations
- Variable power supply
- Current limiting circuits
- Reverse polarity circuits
- Commonly used in Desktop PC, DVD and other consumer products
- Used in motor control circuits
- Fixed/Adjustable 3-terminal Linear voltage regulator
- Fixed Voltage type: 3.3V
- Variable Voltage range: 1.25V to 13.8V
- Output current is 800mA
- In-built Current Limiting and thermal protection.
- Operating junction temperature is 125°C
