Details
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Parameter | Symbol | Min | Typical | Max | Unit |
---|---|---|---|---|---|
Input Voltage | VIN | 2.7 | - | 5.5 | V |
Output Voltage | VOUT | 1.8 | - | 3.3 | V |
Output Current | IOUT | - | 300 | 500 | mA |
Quiescent Current | IQ | - | 20 | 40 | 渭A |
Dropout Voltage | VDROPOUT | - | 250 | 350 | mV |
Shutdown Current | ISD | - | 0.1 | 1 | 渭A |
Operating Temperature | TOPR | -40 | - | 85 | 掳C |
Storage Temperature | TSTG | -65 | - | 150 | 掳C |
Instructions for BD809
Power Supply Connection:
- Connect the input voltage (VIN) to the power supply.
- Ensure the input voltage is within the specified range (2.7V to 5.5V).
Output Configuration:
- Set the output voltage (VOUT) by using external resistors or selecting a fixed output voltage version if available.
- The output voltage should be within the range of 1.8V to 3.3V.
Load Connection:
- Connect the load to the output terminal (VOUT).
- Ensure the load current does not exceed the maximum output current (500mA).
Capacitors:
- Use a 1渭F ceramic capacitor on the input side (VIN) to filter out noise and stabilize the input voltage.
- Use a 1渭F ceramic capacitor on the output side (VOUT) to ensure stable operation and minimize ripple.
Thermal Considerations:
- Ensure adequate heat dissipation, especially when operating at high currents or in high ambient temperatures.
- The operating temperature range is -40掳C to 85掳C.
Shutdown Function:
- To disable the regulator, apply a low signal to the shutdown pin (SD).
- The shutdown current is very low, typically around 0.1渭A.
Storage:
- Store the device in a dry environment with temperatures between -65掳C and 150掳C.
Handling Precautions:
- Handle the device with care to avoid damage from electrostatic discharge (ESD).
- Follow standard ESD protection guidelines during assembly and handling.
Testing:
- Before finalizing the design, test the regulator under various conditions to ensure it meets the required specifications and performance criteria.
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