MP3429 Low-Ripple DC-DC Step-Up Boost Power Supply

MP3429 Low-Ripple DC-DC Step-Up Boost Power Supply is a compact DC-DC boost module designed for stable power conversion and low-noise operation. It supports a wide input voltage range and adjustable output voltages for electronics projects and power supply applications. The module offers high conversion efficiency, low ripple, and a small form factor for easy installation. Its output indicator light and enable control support practical board integration. Use it where a switching mode step-up power module is required.

Features of MP3429 Low-Ripple DC-DC Step-Up Boost Power Supply

• High-efficiency boost conversion
• Low-noise operation
• Low-ripple output
• Output indicator light
• Ultra-small volume

Specifications of MP3429 Low-Ripple DC-DC Step-Up Boost Power Supply

• Module model: MP3429
• Module type: Switching Mode Power Supply (Booster power module)
• Input voltage: 2.7V-13V (recommended >3V)
• Input current: 23.5A (MAX) (Internal switch current limit)
• Output voltage: Multiple (5V, 9V, 12V, 15V, customizable up to 18V)
• Output power: 35W average (without heat dissipation), peak power not recommended to exceed 50W
• Conversion efficiency: 90-97%
• Load adjustment rate: ±0.5%
• Voltage regulation rate: ±1%
• Static power consumption: 2mA (Carrying idler), 0.7mA (Disabling chip)
• Switching frequency: 600kHz (PSM MODE)
• Output ripple: 57mV (No load) (PSM mode, large ripple at light load)
• Output ripple: 22mV (VIN: 9V VOUT: 12V @ 200mA)
• Output ripple: 39mV (VIN: 9V VOUT: 12V @ 1000mA)
• Output ripple: 47mV (VIN: 9V VOUT: 12V @ 3000mA)
• Module enable: EN: High level enable, internal default pull-up
• Module enable: EN: Low level power loss, closed boost (VOUT=VIN-0.3V)
• Module protection: None (Chip with 150°C overheat protection)
• PCB process: Half-hole + gold sinking process
• Installation method: Lead type, SMD
• Module features: Output indicator light, low noise, low ripple, ultra-small volume
• Dimensions: 40.64 x 20.32 x 7.5 mm
• Module weight: 10g

How to Use MP3429 Low-Ripple DC-DC Step-Up Boost Power Supply

1. Connect the input power voltage to pins 5 and 6 (VIN).
2. Connect the output power voltage to pins 7, 8, and 9 (VOUT).
3. Set the desired output voltage by soldering the corresponding jump point.
4. Use the EN pin (pin 4) to enable the module.
5. Keep the input voltage within the specified range and do not exceed the maximum input current limit.

More Info

• Multiple output voltage options are available on the board.
• EN supports high-level enable with internal default pull-up.
• EN low level results in closed boost operation with VOUT=VIN-0.3V.