Details
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Parameter | Symbol | Conditions | Min | Typical | Max | Unit |
---|---|---|---|---|---|---|
Input Voltage | VIN | Continuous | 2.5 | - | 5.5 | V |
Output Voltage | VOUT | Adjustable | 0.8 | - | 3.3 | V |
Quiescent Current | IQ | VIN = 5V, VOUT = 3.3V | - | 25 | - | 渭A |
Load Regulation | - | 10mA to 500mA | - | 1.5 | - | % |
Line Regulation | - | 2.5V to 5.5V | - | 0.5 | - | % |
Dropout Voltage | VDROPOUT | IOUT = 500mA, VIN = 3.3V | - | 0.4 | - | V |
Operating Temperature | TOPR | - | -40 | - | 125 | 掳C |
Storage Temperature | TSTG | - | -65 | - | 150 | 掳C |
Instructions for Use:
Input Voltage (VIN):
- Ensure the input voltage is within the range of 2.5V to 5.5V.
- The device can operate continuously within this range.
Output Voltage (VOUT):
- The output voltage is adjustable from 0.8V to 3.3V.
- Use the external resistor network to set the desired output voltage.
Quiescent Current (IQ):
- The quiescent current is typically 25渭A when the input voltage is 5V and the output voltage is 3.3V.
- This low quiescent current helps in reducing power consumption.
Load Regulation:
- The load regulation is typically 1.5% when the load current changes from 10mA to 500mA.
- This ensures stable output voltage under varying load conditions.
Line Regulation:
- The line regulation is typically 0.5% when the input voltage varies from 2.5V to 5.5V.
- This ensures stable output voltage under varying input conditions.
Dropout Voltage (VDROPOUT):
- The dropout voltage is typically 0.4V when the output current is 500mA and the input voltage is 3.3V.
- This allows the device to maintain regulation even at low input-to-output voltage differences.
Operating Temperature (TOPR):
- The device can operate in temperatures ranging from -40掳C to 125掳C.
- Ensure that the ambient temperature does not exceed these limits to avoid thermal stress.
Storage Temperature (TSTG):
- The device can be stored in temperatures ranging from -65掳C to 150掳C.
- Store the device in a dry and clean environment to prevent damage.
PCB Layout:
- Place the device close to the input capacitor to minimize noise.
- Use a ground plane to improve thermal performance and reduce noise.
Capacitors:
- Use high-quality ceramic capacitors for both input and output.
- The input capacitor should be at least 1渭F, and the output capacitor should be at least 10渭F.
Resistor Network:
- Use the formula provided in the datasheet to calculate the values of the resistors for setting the output voltage.
- Ensure the resistors are of high precision to achieve accurate output voltage.
Thermal Considerations:
- Ensure adequate heat sinking if the device will be operating at high currents or in high ambient temperatures.
- Monitor the junction temperature to ensure it remains within safe limits.
Power-Up Sequence:
- Ensure a smooth power-up sequence to avoid inrush currents and potential damage.
- Use a soft-start circuit if necessary to control the startup behavior.
Protection Circuits:
- Implement overcurrent and overtemperature protection circuits to safeguard the device and the system.
- Use appropriate fuses and thermal cut-offs as needed.
By following these guidelines, you can ensure optimal performance and reliability of the RT6937BGQW in your application.
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