MT3505 24V(Surge up to 28V) 500KHz 4A(5A peak) Fast-PWM Synchronous Step-Down Converter

PublishTime：2022-07-30

●The MT3505is a fully integrated high efficiency synchronous step-down converter which requires minimum number of external components. It offers very compact solution with up to 5A continuous output current over a wide input range.
●The MT3505 employs proprietary Constant On-Time (COT) control scheme providing superior transient response and maintaining constant switching frequency under the continuous conduction mode operation. The internal ramp compensation network allows stable operation with ultra-low equivalent series resistance (ESR) output ceramic capacitors without using external compensation network. An error amplifier in the control loop provides excellent line and load regulation.
●The MT3505 integrates extensive protection functions include: UVLO, OCP, UVP and thermal shutdown. Input Under-Voltage Lockout is internally set as 4.2V. An open drain power good signal indicates the output within its regulation voltage range.
●The converter is available in a small 8pin TSOT23 and DFN3x3_10L package.
●Features:
■Input Voltage Range from 4.5V to 24V Surge up to 28V
■1.5% 0.6V Feedback Voltage Accuracy
■4A continuous output current and 5A peak current
■Support 100% duty cycle Low Dropout Operation
■Stable operation with output low ESR ceramic capacitors
■Fast PWM COT control with superior transient performance
■500KHz Switching frequency
■Integrated HS/LS Switches
▲TSOT23_8L: 52mΩ/22mΩ
▲DFN3x3_10L: 75mΩ/35mΩ
■Accurate EN UVLO threshold
■Open Drain Power Good Indication
■Forced PWM(MT3505A) or PFM(MT3505N)or Ultrasonic Mode(MT3505U) at light load
■Low quiescent current
■Thermal Shutdown with Auto recovery.
■Hiccup mode at short circuit protection
■Available in an 8-pin TSOT23 and DFN3x3_10L Package

Brand of Product：	M3 Technology
Part#：	MT3505 、 MT3505ATCR 、 MT3505NTCR 、 MT3505UTCR 、 MT3505ADCR 、 MT3505NDCR 、 MT3505UDCR 、 MT3505N 、 MT3505A 、 MT3505U More Part#
Product Category：	Fast-PWM Synchronous Step-Down Converter More
Application：	[ Laptop Computer ][ Tablet PC ][ Networking Systems ][ Personal Video Recorders ][ Flat Panel Television ][ Monitors ][ Distributed Power Systems ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	TSOT23_8L;DFN3x3_10L
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2022/2/15
Version Number：	Rev. 0.13
Data Encoding：
Data Size：	300 KB

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