Specifications
SKU: 11530746
Parameter | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Input Voltage | VIN | 3.0 | - | 40 | V |
Output Voltage | VOUT | 1.2 | - | 37 | V |
Line Regulation | 0.01 | %/V | |||
Load Regulation | 0.1 | %/mA | |||
Dropout Voltage | VD | 1.0 | - | 2.5 | V |
Output Current | IOUT | 1.5 | - | 1.5 | A |
Quiescent Current | IQ | 5 | 10 | mA | |
Thermal Resistance (θJA) | 65 | °C/W | |||
Operating Temperature | Toper | -40 | - | 125 | °C |
Storage Temperature | Tstg | -65 | - | 150 | °C |
Instructions for Using the LM317T:
Circuit Configuration:
- Connect the input voltage (VIN) to the input terminal.
- Connect the output voltage (VOUT) to the output terminal.
- Connect the adjustment terminal (ADJ) to a resistor network to set the output voltage.
Output Voltage Adjustment:
- The output voltage is set by the ratio of two resistors, R1 and R2, connected between the output and adjustment terminals.
- Use the formula: ( V_ = 1.25 left(1 + fracright) + I_ cdot R2 )
- Typically, R1 is chosen to be 240Ω, and R2 is adjusted to achieve the desired output voltage.
Capacitors:
- Place a 0.1μF capacitor between the input and ground to improve transient response and stability.
- Optionally, place a 10μF tantalum capacitor between the output and ground to improve ripple rejection.
Heat Dissipation:
- Ensure adequate heat sinking if the device is operating at high power levels to prevent overheating.
- Calculate the power dissipation using ( P_D = (V_ - V_) cdot I_ ).
Protection:
- The LM317T includes internal thermal overload protection and safe area compensation.
- Ensure the input voltage does not exceed 40V to avoid damaging the device.
Storage and Handling:
- Store the device in a dry environment within the specified storage temperature range.
- Handle with care to avoid damage to the pins and the device itself.
Inquiry - LM317T NEW ORIGINAL