Our advantages

Chinese manufacturing processes have undergone years of iteration, resulting in mature and reliable technologies. Many international corporations opt for production outsourcing in China.  As an electronic components manufacturer in China, our products can fully replace those of major international brands in 99% of applications without the need for testing verification. Our products boast high consistency in quality, reasonable pricing, ample inventory, flexible supply, short lead times, and professional after-sales service.

Description
● SL9451 is a high-frequency (1.8MHz) step-down switching regulator with an integrated high-side high-voltage  power MOSFET. It provides up to 0.6A of efficient output in a single channel, achieving rapid loop response  through current mode control.  With a wide input voltage range from 4.2V to 40V, it is suitable for various buck power conversion applications  in mobile environment inputs. Its shutdown static current of 1uA makes it ideal for battery-powered  applications.
● Under light load conditions, efficiency in a wide load range is achieved by reducing switching frequency to  minimize switch and gate driver losses.
● Frequency fold back technology helps prevent inductor current runaway during startup. Thermal  shutdown ensures reliable and fault-tolerant operation. The circuit package is SOT23-6L

Features
● 230uA operating quiescent current
● Wide operating voltage range from 4.2V to 40V
● Internal power MOSFET with 500mΩ on-resistance
● Fixed switching frequency of 1.8 MHz
● Internal compensation
● Ceramic output capacitor for stability
● Internal soft-start
● Precision current limit without sampling resistor
● Up to 90% efficiency
● Low shutdown current: <1uA
● 6-pin SOT23 package

Application
● High voltage power conversion
● Automotive systems
● Industrial power systems
● Distributed power systems
● Battery-powered systems