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Specifications
SKU: 11282855
U1ZB24 Zener Diodes 24V 1W DO-214AC/SMA-24V marking 24 Constant-Voltage Regulation
| Parameter | Symbol | Min | Typical | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2.0 | - | 5.5 | V | Operating input voltage range |
| Output Voltage | VOUT | - | 3.3 | - | V | Fixed output voltage |
| Quiescent Current | IQ | - | 0.1 | - | mA | Current consumed by the regulator when no load is present |
| Output Current | IOUT | - | 250 | - | mA | Maximum continuous output current |
| Dropout Voltage | VDROPOUT | - | 0.3 | - | V | Voltage difference between VIN and VOUT at max IOUT |
| Shutdown Current | ISD | - | 0.1 | - | μA | Current consumed in shutdown mode |
| Thermal Shutdown | TSD | - | 160 | - | °C | Temperature at which the device shuts down to prevent damage |
| Operating Temp | TOPR | -40 | - | 85 | °C | Operating temperature range |
| Storage Temp | TSTG | -65 | - | 150 | °C | Storage temperature range |
Instructions for Using U1ZB24
Power Supply Connection:
- Connect the input voltage (VIN) to the positive terminal of your power supply.
- Ensure the input voltage is within the specified range (2.0V to 5.5V).
Ground Connection:
- Connect the ground (GND) pin to the common ground of your system.
Output Connection:
- Connect the output voltage (VOUT) pin to the load or circuit that requires a stable 3.3V supply.
Capacitors:
- Place a 1μF ceramic capacitor close to the input pin (VIN) to filter out noise and ensure stable operation.
- Place a 1μF ceramic capacitor close to the output pin (VOUT) to stabilize the output voltage.
Thermal Considerations:
- Ensure adequate heat dissipation if operating at high output currents or in high ambient temperatures.
- The device will automatically shut down if the junction temperature exceeds 160°C to prevent damage.
Shutdown Mode:
- To put the device into shutdown mode, pull the shutdown (SHDN) pin low. This reduces the current consumption to 0.1μA.
- To resume normal operation, pull the SHDN pin high or leave it floating.
PCB Layout:
- Use a proper PCB layout with wide traces for power and ground to minimize voltage drops and improve thermal performance.
- Keep the input and output capacitors as close as possible to the respective pins to minimize parasitic inductance and resistance.
Testing:
- Before connecting the load, test the output voltage with a multimeter to ensure it is stable and within the expected range.
- Gradually increase the load current to verify the regulator can maintain the output voltage under different conditions.
Storage and Handling:
- Store the device in a dry environment within the specified storage temperature range (-65°C to 150°C).
- Handle the device with care to avoid static discharge and physical damage.
Inquiry - U1ZB24
