Features: ND0603PC is a low-cost and cost-effective automatic Boost Converters module developed. Input 1-6V, stable output 3V/3.3V/4.2V/5V. It is ideal Lifpo4 battery regulator. Auto Boost Converters Module working frequency 1MHZ.efficiency 61%-86% . Suitable for electronics enthusiasts, hobbyists, and engineers, this Converters module is perfect for those optimizes battery performances in their DIY projects or professional applications. Ideal for use in environment with fluctuating power supplies, this Converters ensures stable voltage output for development boards and other sensitive electronics, even under varying input conditions. Specifications: Component:ABS Type:3V/3V3/4V2/5V Input voltage:0.9-6V Output: 3V/3.3V/4.2V/5V Operating current: 0.26mA Operating temperature ranges: -25-85 Storage temperature ranges: -45-125 Size:Approx. 2.6x1.50cm/1.02x0.59inch Oscillator frequency:1.0MHz Feedback voltage accuracy:2% Soft start function: 2 mS Low voltage operation: Start-up is guaranteed from 0.9V(IOUT =1mA ) circuit 15 to 78% Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1Pc Voltage Regulator