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Specifications
SKU: 7621194
Engine Management PMIC
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Supply Voltage (Vcc) | Operating voltage range | 4.5 to 36 | V |
| Output Current (Iout) | Maximum continuous output current | 2.5 | A |
| Dropout Voltage (Vdo) | Maximum dropout voltage at Iout = 1.5A | 0.8 | V |
| Quiescent Current (Iq) | Quiescent current at Vcc = 5V, Iout = 0 | 2.5 | mA |
| Shutdown Current (Ishd) | Shutdown current | 0.1 | μA |
| Thermal Shutdown Temperature (Tsd) | Thermal shutdown temperature | 160 | °C |
| Operating Junction Temperature (Tj) | Operating junction temperature range | -40 to 150 | °C |
| Storage Temperature (Tstg) | Storage temperature range | -65 to 150 | °C |
| Package Type | Physical package type | SO-8 | - |
| Pin Configuration | Pin configuration | IN, GND, OUT, EN, NC, NC, NC, NC | - |
Instructions for Using L9779WD
Supply Voltage:
- Ensure the supply voltage is within the operating range of 4.5V to 36V.
- Use appropriate input capacitors to stabilize the input voltage.
Output Current:
- The device can provide up to 2.5A of continuous output current.
- For higher current applications, consider heatsinking or using multiple devices in parallel.
Dropout Voltage:
- The maximum dropout voltage is 0.8V at 1.5A output current.
- Ensure the input voltage is sufficiently higher than the desired output voltage to maintain regulation.
Quiescent Current:
- The quiescent current is 2.5mA at 5V input with no load.
- This value helps in power budget calculations for low-power systems.
Shutdown Current:
- The shutdown current is 0.1μA when the enable pin (EN) is pulled low.
- Use this feature to reduce power consumption in battery-powered applications.
Thermal Management:
- The thermal shutdown temperature is 160°C.
- Ensure proper heat dissipation by using a heatsink if the device will operate near its maximum power dissipation.
Operating Temperature:
- The operating junction temperature range is -40°C to 150°C.
- Ensure the ambient temperature and thermal design allow the device to stay within this range.
Storage Temperature:
- The storage temperature range is -65°C to 150°C.
- Store the device in a dry, temperature-controlled environment to prevent damage.
Package and Pin Configuration:
- The L9779WD is available in an SO-8 package.
- Pin configuration: IN (input), GND (ground), OUT (output), EN (enable), NC (not connected).
Enable Pin (EN):
- The enable pin controls the operation of the device.
- Pulling the EN pin high enables the device, while pulling it low puts the device into shutdown mode.
Capacitors:
- Use input and output capacitors as recommended by the datasheet to ensure stable operation and filter out noise.
- Typical values are 10μF for input and 10μF for output, but consult the datasheet for specific recommendations.
Inquiry - L9779WD
