LTC1871 step-up module - 3-35 V to 3-35 V, 100 W

Product Overview

• Step-up converter for increasing voltage, input voltage 3 to 35 V
• Output voltage 3 to 35 V, maximum 100 W output power
• Switching frequency 500 kHz, low idle power consumption
• Integrated protection against overload and thermal overtemperature
• Compact design with surface-mounted components

Product Description

This step-up module efficiently increases input voltages to higher voltage levels. The integrated switching regulator operates at a switching frequency of 500 kHz and achieves a maximum output power of 100 W. The output voltage can be adjusted from 3 to 35 V, making the module suitable for numerous power supply applications.

The module uses the LTC1871 switching regulator IC and enables lower input voltages to be transformed to the higher levels required. Unlike linear regulators, it generates significantly less heat loss, which is particularly advantageous at higher power levels. Integrated protection against overload and overtemperature prevents damage in the event of incorrect use. The high switching frequency allows filtering with small inductors and capacitors.

Typical applications include powering high-power LEDs from battery voltages, adapting solar panel outputs to load requirements, or supplying microcontroller boards with various power supply voltages. The module is also suitable for mobile projects with rechargeable batteries that require a constant higher voltage. One specific example: To power high-brightness LEDs, the native battery voltage is often insufficient. The step-up module transforms 5 V to 12 V or 24 V, for example, without causing significant energy losses.

A stabilized input source is required for operation; input noise should be kept to a minimum. An input filter with additional capacitors may be necessary for long supply lines. Switching operation generates high-frequency noise; shielded connections and distance from sensitive sensors reduce interference. A load exceeding 100 W output power will cause the protection circuit to shut down.

Safety Information

Ensure correct polarity when connecting the power supply. The module is intended exclusively for building prototypes and for testing and development purposes and is not designed for installation in household electrical circuits. Before commissioning work on or near electrical installations with mains voltage, consult a qualified electrician.

Scope of Delivery

• 1x LTC1871 Step-up Module - 100W, 3-35V to 3-35V Voltage Converter