8.4V, 5A Step-Down Voltage Regulator D42V55F8
ID: 1199015
5902186322899
zł120.68
Tax included
zł98.11 tax excl.
A step-down converter that reduces the input voltage from 8.4V to 60V to a stable 8.4V with up to 95% efficiency and up to 8.4A output current. It offers low standby current (<0.2mA), soft-start functionality, overcurrent, thermal, and reverse polarity protection. Compact and easy to integrate, it is ideal for microprocessor systems, IoT, and automation. Pololu 5575
Description
The D42V55F8 voltage regulator is a high-performance synchronous buck (step-down) converter designed to step down input voltages of up to 60 V to a stable 8.4 V. It features low no-load current consumption (<0.2 mA), making it energy-efficient even in standby mode. Its compact dimensions allow installation in space-constrained environments. The D42V55F8 is an ideal solution for microprocessor systems, IoT devices, automation, and hobby projects where stable 8.4 V power with high efficiency and safe operation is required.
Thanks to switching technology (SMPS, DC-DC), the converter offers significantly higher efficiency (up to 95%) compared to traditional linear regulators, minimizing energy losses and heat generation. This model can deliver a continuous output current of from 3.5 A to 7 A at low input voltages, providing stable power even for demanding circuits. The unit features reverse voltage protection, overcurrent protection, and thermal shutdown, ensuring high reliability in harsh operating conditions. The soft-start function limits inrush current and smoothly ramps up the voltage at startup, protecting connected devices.
The converter provides a set of pins for flexible integration into a power system. VOUT supplies the regulated 8.4 V output, while GND serves as the common ground reference. VIN is used for supplying the input voltage, with the minimum operating voltage depending on the output voltage and dropout. The VRP pin outputs the input voltage after reverse voltage protection — it can be used as an output to power other devices or as an alternative input bypassing the protection. Additionally, a PG (Power Good) pin — an open-drain output indicating proper output voltage — and an EN pin are available, allowing the converter to be enabled or disabled, including in low-power mode.
Features
- Input voltage: 8.4 V to 60 V
- Output voltage: 8.4 V ±3%
- Maximum continuous output current: from 3.5 A to 7 A (depending on input voltage)
- Efficiency: up to 95% (typically 70%–95%)
- Switching frequency: ~400 kHz
- No-load current consumption: < 0.2 mA
- Low-power mode (ENABLE): < 0.1 mA
- ENABLE input for remote on/off control
- Power-Good output for voltage monitoring
- Soft-start function to limit inrush current
- Reverse voltage protection
- Overcurrent and thermal protection
- Dimensions: 25.4 x 25.4 x 9 mm
- Three mounting holes 0.086″ (for #2 or M2 screws)
1199015
Data sheet
- Output voltage
- 8.4V
- Output current
- 7 A
- Converter type
- Step-down
- Supply voltage min
- 8,5 V
- Supply voltages max
- 60 V
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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