SCT2450 3.8V-36V Vin, 5A, High Efficiency Synchronous Step-down DCDC Converter with Programmable Frequency

PublishTime：2021-08-28

●DESCRIPTION
■The SCT2450 is 5A synchronous buck converters with wide input voltage, ranging from 3.8V to 36V, which integrates a 45mΩ high-side MOSFET and a 20mΩ low-side MOSFET. The SCT2450, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 25uA low quiescent current which assists the converter on achieving high efficiency at light load or standby condition.
■The SCT2450 features programmable switching frequency from 100 kHz to 1.1 MHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100kHz to 1.1MHz. The SCT2450 allows power conversion from high input voltage to low output voltage with a minimum 100ns on-time of high-side MOSFET.
■The SCT2450 is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2450 features Frequency Spread Spectrum FSS with ±6% jittering span of the 500kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.
■The SCT2450 offers cycle-by-cycle current limit and hiccup over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced ESOP-8 package.
●FEATURES：
■Wide Input Range: 3.8V-36V
■Up to 5A Continuous Output Current
■0.8V ±1% Feedback Reference Voltage
■Integrated 45mΩ High-Side and 20mΩ Low-Side Power MOSFETs
■Pulse Skipping Mode (PSM) with 25uA Quiescent Current in Sleep Mode
■100ns Minimum On-time
■4ms Internal Soft-start Time
■Adjustable Frequency 100KHz to 1.1MHz
■External Clock Synchronization
■Frequency Spread Spectrum (FSS) Modulation for EMI Reduction
■Precision Enable Threshold for Programmable Input Voltage Under-voltage Lock Out Protection (UVLO) Threshold and Hysteresis
■Low Dropout Mode Operation
■Derivable Inverting Voltage Regulator
■Over-voltage and Over-Temperature Protection
■Available in an ESOP-8 Package

Brand of Product：	SCT
Part#：	SCT2450 、 SCT2450STE 、 SCT2451 、 SCT2430A 、 SCT2431A 、 SCT2430 、 SCT2432 、 SCT2433 、 SCT2430STER More Part#
Product Category：	High Efficiency Synchronous Step-down DCDC Converter 、 synchronous buck converters More
Application：	[ Battery Pack Powered System ][ Cordless Power Tools ][ Cordless Home Appliance ][ Drone ][ Aero Modeling ][ GPS Tracker ][ Cigarette Lighter Adapters ][ Chargers ][ LCD Display ][ USB Type-C Power Delivery ][ USB Charging ][ Industrial and Medical Distributed Power Supplies ][ Optical Communication and Networking System ][ Automotive System ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	ESOP-8;ESOP
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2021/07/29
Version Number：	Rev.1.8
Data Encoding：
Data Size：	2.4 MB

Data section preview(2pages)

- The full preview is over. If you want to read the whole 24 page document,please Sign in/Register -

Download

+1 Like
Add to Favorites

Recommend

Technical Resources

More>

All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.

Integrated Circuits