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Specifications
SKU: 4671240
Critical Conduction GreenLine SMPS Controller
| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | 4.5 | - | 40 | V | Operating voltage range |
| Output Voltage (Regulated) | VOUT | 5 | - | 15 | V | Adjustable output voltage |
| Output Current | IOUT | - | 1.5 | 3 | A | Maximum continuous output current |
| Quiescent Current | IQ | - | 5 | 15 | mA | Quiescent current at no load |
| Dropout Voltage | VDROPOUT | - | 1.2 | 2 | V | Voltage difference between VIN and VOUT at max load |
| Switching Frequency | fSW | - | 100 | 150 | kHz | Internal oscillator frequency |
| Efficiency | η | - | 85 | 95 | % | Typical efficiency at full load |
| Operating Temperature | Toper | -40 | - | 125 | °C | Operating temperature range |
| Storage Temperature | Tstg | -65 | - | 150 | °C | Storage temperature range |
| Thermal Resistance | RθJA | - | 50 | - | °C/W | Junction to ambient thermal resistance |
Instructions for Use:
Input Voltage (VIN):
- Ensure the input voltage is within the specified range of 4.5V to 40V.
- Connect the input voltage to the VIN pin.
Output Voltage (VOUT):
- The output voltage can be adjusted using external resistors.
- Use the formula ( V_ = 1.25 left(1 + fracright) ) to set the desired output voltage, where ( R_1 ) and ( R_2 ) are the feedback resistors.
Output Current (IOUT):
- The maximum continuous output current is 3A. Ensure that the load does not exceed this limit to avoid overheating or damage.
Quiescent Current (IQ):
- The quiescent current is typically 5mA and can go up to 15mA. This is the current drawn by the regulator when there is no load.
Dropout Voltage (VDROPOUT):
- The dropout voltage is the minimum difference between the input and output voltages required to maintain regulation. It is typically 1.2V and can go up to 2V.
Switching Frequency (fSW):
- The switching frequency is internally set to 100kHz to 150kHz. This frequency helps in reducing the size of external components like inductors and capacitors.
Efficiency (η):
- The typical efficiency of the regulator is 85% to 95%. Higher efficiency reduces power loss and heat generation.
Operating Temperature (Toper):
- The operating temperature range is from -40°C to 125°C. Ensure the device is used within this range to avoid performance degradation or failure.
Storage Temperature (Tstg):
- The storage temperature range is from -65°C to 150°C. Store the device in a dry environment within this range to prevent damage.
Thermal Resistance (RθJA):
- The junction-to-ambient thermal resistance is typically 50°C/W. Proper heat sinking may be required for high-power applications to keep the junction temperature within safe limits.
PCB Layout:
- Place the input and output capacitors as close as possible to the respective pins to minimize noise and improve stability.
- Use wide traces for power connections to reduce voltage drops and heating.
Protection Features:
- The MC33364DR2 includes overcurrent protection and thermal shutdown to protect the device from excessive load and overheating.
By following these guidelines, you can ensure optimal performance and reliability of the MC33364DR2 in your application.
(For reference only)Inquiry - MC33364DR2
