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SE694

Specifications

SKU: 810736

BUY SE694 https://www.utsource.net/itm/p/810736.html
SURFACE MOUNT SUPER FAST RECTIFIER VOLTAGE RANGE 50 to 400 Volts CURRENT 1.0 Ampere
Parameter Description Value
Part Number Device Part Number SE694
Type Type of Component Switching Regulator
Function Function of the Device Step-Down (Buck)
Input Voltage Operating Input Voltage Range 4.5V to 28V
Output Voltage Adjustable Output Voltage Range 0.8V to 26V
Output Current Maximum Continuous Output Current 3A
Switching Frequency Internal Oscillator Frequency 1.2MHz
Efficiency Typical Efficiency at Full Load Up to 95%
Package Package Type SOIC-8
Operating Temperature Operating Ambient Temperature Range -40°C to +125°C
Storage Temperature Storage Temperature Range -65°C to +150°C
Protection Features Built-in Protection Features Overcurrent, Overvoltage, Thermal Shutdown
Quiescent Current Quiescent Current in Operation 75μA
Enable Pin Enable Pin Functionality Yes, with Shutdown Mode
Shutdown Current Shutdown Mode Current Consumption <1μA

Instructions for Use:

  1. Circuit Design:

    • Ensure the input voltage is within the specified range (4.5V to 28V).
    • Use appropriate external components such as inductors, capacitors, and resistors to set the output voltage and stabilize the circuit.
    • Place the output capacitor close to the device to minimize noise and improve stability.
  2. Output Voltage Setting:

    • The output voltage can be adjusted using a resistor divider network connected to the feedback pin (FB).
    • The formula to calculate the output voltage is ( V_ = V_ times left(1 + fracright) ), where ( V_ ) is typically 0.8V.
  3. Thermal Management:

    • Ensure adequate heat dissipation, especially when operating at high output currents.
    • Use a heatsink or PCB copper area to help dissipate heat if necessary.
  4. Enable Pin:

    • The enable pin (EN) can be used to control the on/off state of the regulator.
    • Applying a high signal (typically >1.2V) to the EN pin turns the regulator on.
    • A low signal (<0.4V) will turn the regulator off, entering a low-power shutdown mode.
  5. Protection Features:

    • The device includes overcurrent, overvoltage, and thermal shutdown protection.
    • These features help prevent damage to the device under fault conditions.
  6. Layout Considerations:

    • Keep the power traces short and wide to reduce resistance and inductance.
    • Use ground planes to provide a low-impedance path for return currents.
    • Place decoupling capacitors close to the input and output pins to filter noise.
  7. Storage and Handling:

    • Store the device in a dry, cool environment to avoid moisture damage.
    • Handle the device with care to avoid static discharge, which can damage sensitive components.
(For reference only)

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