5V to 1.5V Converter Circuit
Learn how to convert 5V DC to 1.5V using a simple step-down (buck) converter. Perfect for low-power electronics like sensors, LEDs, and microcontroller peripherals.
dc to dc step down 5v to 1.5v
A step-down voltage regulator like LM317 or a buck converter IC can be used to make 5V into 1.5V. They are circuits where the voltage can be reduced, and on the 1.5V devices, which present a stable current source. They also help guard against overvoltage damage of low voltage circuitry and can be observed in battery-powered equipment and embedded systems. Heat management and selection of the components will give good performance.
Formula & Table Summary:
- Using LM317: Vout = 1.25 × (1 + R2/R1)
- Fixed Buck Converter: No external resistors needed, preset 1.5V output
- Power Dissipation: P = (Vin - Vout) × Iload
5v to 1.5v converter circuit
A 5V to 1.5V converter is a very basic DC-DC step-down (buck) circuit that is used in order to power low-voltage, 1.5V devices such as low-voltage WiFi sensors, or logic chips out of 5V power, such as USB. This circuit is quite efficient at controlling the voltage using a regulatable regulator such as the LM317 or a specific regulator IC such as a buck converter. This is usually applied in embedded systems, battery power equipment, and applications with microcontrollers.
5v to 1.5v regulator
| Input Voltage | Output Voltage | Output Current | Power Dissipation |
|---|---|---|---|
| 5V | 1.5V | 500mA | 1.75W |
| 5V | 1.5V | 300mA | 1.05W |


