Boost Converter 5V DC Input – 12V DC Output
This compact boost converter module that steps up a 5V DC input to a 12V DC output, utilizing the LM2733 switching regulator. The design emphasizes high power density through the use of the small SOT-23 package, minimal inductor and capacitor sizes, and high switching frequencies 1.6 MHz. Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.
Key Features
- Input Voltage: 5V DC
- Output Voltage: 12V DC
- Max Load Current: 330mA
- Switching Frequencies: 1.6 MHz (X)
- Cycle-by-cycle current limiting for safety and reliability
- Compact design with tiny capacitors and inductors for space efficiency
- PCB Dimensions 16.67 x 5.08 mm
Design Insights
- The LM2733’s internal switch, capable of handling up to 1A, contributes to the minimal power loss.
- The small inductor and capacitors contribute to the high-power density, making the circuit suitable for space-constrained applications.
- The high switching frequency allows for smaller passive components, reducing overall size.
Potential Applications
- Portable electronics requiring a 12V supply from a 5V source
- Compact power supply modules
- Embedded systems with space and weight constraints
Connections
- Pin 1 = Power Input 5V DC, Pin 2 = GND, Pin 3 = Output 12V DC
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This compact boost converter module that steps up a 5V DC input to a 12V DC output, utilizing the LM2733 switching regulator. The design emphasizes high power density through the use of the small SOT-23 package, minimal inductor and capacitor sizes, and high switching frequencies 1.6 MHz. Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.
Key Features
- Input Voltage: 5V DC
- Output Voltage: 12V DC
- Max Load Current: 330mA
- Switching Frequencies: 1.6 MHz (X)
- Cycle-by-cycle current limiting for safety and reliability
- Compact design with tiny capacitors and inductors for space efficiency
- PCB Dimensions 16.67 x 5.08 mm
Design Insights
- The LM2733’s internal switch, capable of handling up to 1A, contributes to the minimal power loss.
- The small inductor and capacitors contribute to the high-power density, making the circuit suitable for space-constrained applications.
- The high switching frequency allows for smaller passive components, reducing overall size.
Potential Applications
- Portable electronics requiring a 12V supply from a 5V source
- Compact power supply modules
- Embedded systems with space and weight constraints
Connections
- Pin 1 = Power Input 5V DC, Pin 2 = GND, Pin 3 = Output 12V DC
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