KIS-3R33S Datasheet – 10W, DC-DC Step Down Converter

This is one of the converter types.

Part Number : KIS-3R33S

Function : 3A, 10 W, DC-DC Step Down Converter

Package : Module type

See the preview image and the PDF file for more information.

Image :

KIS-3R33S module

This module comes with output voltage preset to 3.3V. However, it is easy to readjust and have output setat any voltage from 1.21 V – 10.43 V, if the circuit is modified then the output voltage can be varied up to 20V. Different LEDs from different manufacturers operateat different maximum continuous voltage, which in
turn determines the maximum current flowing throughthe LED. To protect LED and to provide stable light characteristics it is necessary to limit the voltage output from the KIS-3R33S module according to the specific requirements for each type of power LED, as specified by the manufacturer.

KIS-3R33S Pinouts

KIS-3R33S datasheet converter

KIS-3R33S Datasheet

KIS-3R33S pdf


XL4016 Datasheet – 8A, 40V, DC to DC Converter

This is one of the converter types.

Part Number : XL4016, XL4016E1

Function : 8A 180KHz 40V Buck DC to DC Converter

Package :  TO220-5L Type

Manufactures : XLSEMI ( )

See the preview image and the PDF file for more information.




Description :

The XL4016 is a 180 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 8A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 180KHz to 48KHz. An internal compensation block is built in to minimize external component count.


XL4016 Pinout




1. Wide 8V to 40V Input Voltage Range
2. Output Adjustable from 1.25V to 36V
3. Maximum Duty Cycle 100%
4. Minimum Drop Out 0.3V
5. Fixed 180KHz Switching Frequency
6. 8A Constant Output Current Capability
7. Internal Optimize Power MOSFET
8. High efficiency up to 96%
9. Excellent line and load regulation
10. Built in thermal shutdown function
11 .Built in current limit function
12. Built in output short protection function
13. Built in input over voltage protection


1. LCD Monitor and LCD TV
2. Portable instrument power supply
3. Telecom / Networking Equipment


XL4016 Datasheet