Step-Up Voltage Regulator U3V40F5 - 5V 4A - Pololu 4012

Index: PLL-20747 EAN: 5904422382421

Pololu brand step-up converter with an output voltage of 5 V and a capacity of 4 A. The supply voltage ranges from 1.3 V to 5 V (the starting voltage is 2.7 V). Typical inverter efficiency ranges from 90% to 95%, depending on input voltage and load. The module has temperature protection, when the temperature threshold is exceeded, it will shut down.

Step-Up Voltage Regulator U3V40F5 - 5V 4A - Pololu 4012
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Step-up inverter - 4A - Pololu:
Manufacturer: Pololu

Product description: U3V40F5 - 5V 4A step-up converter - Pololu 4012

Pololu brand step-upconverter with an output voltage of 5 V and a capacity of 4 A. The supply voltage ranges from 1.3 V to 5 V (the starting voltage is 2.7 V). Typical inverter efficiency ranges from 90% to 95%, depending on input voltage and load. The module has temperature protection; when the temperature threshold is exceeded, it will shut down.

Wyprowadzenia modułu5 V / 4 A step-up converter pinouts.

Outputs of the step-up converter module

The step-up converter has four pin-outs in the form of six 2.54 mm solder holes.

  • EN - pin to disable the system when the voltage is below 0.4 V, system on by default: 30 kΩ resistor pulled up from EN to VIN.
  • VIN - input voltage from 2.7 V to 9 V (after starting up the chip, the input voltage may be at least 1.3 V).
  • GND - system ground (common for VIN and VOUT).
  • VOUT - output voltage 9 V.

Hazardous voltage pulses

When power is applied to the module, dangerous, short-lived high amplitude eclectic impulses (so-called pins) may appear, which can permanently damage the system. Pololu's tests show that for input voltages above 11 V pins can have amplitude large enough to damage the module. To protect against this undesirable phenomenon it is recommended to solder a capacitor of at least 33 uF as close as possible to the pins supplying the converter.

System efficiency

Efficiency is defined as the ratio of output power to input power (power out)/(power in). It is a very important parameter in the case of work with portable sources of energy (batteries and accumulators), where the time of work on one charging cycle counts. The efficiency of this circuit is from 90% to 95%. The output current depends on the input voltage and the system load.

Wydajność prądowa przetwornicyCurrent efficiency of the U3V40F5 step-up converter.
Zawartość zestawuU3V40F5 5 V / 4 A step-up converter, including goldpin connector kit.

U3V40F5 step-up converter specifications

  • Input voltage: from 1.3 V to 9 V (the minimum voltage to run the circuit is 2.7 V)
  • Output voltage: 5 V (with 4% accuracy)
  • Typical efficiency: 90% to 95%, depending on input voltage and load
  • Switching frequency: ~600 Hz at high load
  • Energy-saving mode
  • Typical no-load idle current less than 2 mA
  • The 9.5 amp switch allows for:
    • Instantaneous input current up to 9.5 A
    • Up to 4.5 A input current for a few seconds
    • up to 4 A input current for a longer time
  • Integrated protection:
    • shutdown due to over temperature
    • soft-start function limits the inrush current and gradually increases the output voltage
    • Output overvoltage protection (typically 16.5V)
    • input current limitation cycle by cycle up to 9.5 A
  • Dimensions: 15.2 x 15.2 x 5.6 mm
  • Weight: 1.5 g

Voltage to 1.3 V
Voltage from 5.0 V
Voltage output from 5.0 V
Output voltage to 5.0 V
Nominal output voltage 5.0 V
Current 4.0 A
Stabilizer - Type step-up
Package width 8.5 cm
Package height 10 cm
Package depth 0.5 cm
Package weight 0.003 kg

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Step-Up Voltage Regulator U3V40F5 - 5V 4A - Pololu 4012

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Norbert 13.02.2024 Confirmed purchase Translated review
it's OK

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