MAX17543ATP+

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Analog Devices Inc./Maxim Integrated

4.5V-42V, 2.5A, HIGH-EFFICIENCY, SYNCHRONOUS STEP-DOWN DC-DC CONVERTER WITH INTERNAL COMPENSATION

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MAX17543ATP+

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Analog Devices Inc./Maxim Integrated

4.5V-42V, 2.5A, HIGH-EFFICIENCY, SYNCHRONOUS STEP-DOWN DC-DC CONVERTER WITH INTERNAL COMPENSATION

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Description Specifications Series Pricing CAD Documents

Description

General part information

MAX17543 Series

The MAX17543 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 42V input. The converter can deliver up to 2.5A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.1% over -40°C to +125°C.The MAX17543 uses peak current-mode control. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes.The device is available in a 20-pin (4mm × 4mm) TQFN package. Simulation models are available.ApplicationsBase Station Power SupplyDistributed Supply RegulationGeneral-Purpose Point-of-LoadHigh-Voltage Single-Board SystemsIndustrial Power Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	MAX17543ATP+

Current - Output	2.5 A
Frequency - Switching (Max)	2.2 MHz
Frequency - Switching (Min)	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	20-WFQFN Exposed Pad
Package Length	4 mm
Package Name	20-TQFN
Package Width	4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	42 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	37.8 V
Voltage - Output (Min/Fixed)	0.9 V

MAX17543 Series

Part	Board Type	Supplied Contents	Total Output Count	Output Type	Non-Isolated Output Count	Frequency - Switching	Contents	Utilized IC / Part	Regulator Topology	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Main Purpose	Current - Output	Voltage - Output	Frequency - Switching (Min)	Frequency - Switching (Max)	Topology	Voltage - Input (Max)	Number of Outputs	Voltage - Input (Min)	Output Configuration	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Function	Voltage - Output (Max)	Mounting Type	Package / Case	Package Length	Package Name	Package Width	Operating Temperature (Max)	Operating Temperature (Min)
Analog Devices Inc./Maxim Integrated MAX17543EVKITB#	Fully Populated	Board(s)	1	Non-Isolated	1 count	500 kHz	Board	MAX17543	Buck	42 V	6.5 V	DC/DC Step Down	2.5 A	5 VDC
Analog Devices Inc./Maxim Integrated MAX17543ATP+				Adjustable									2.5 A		100 kHz	2.2 MHz	Buck	42 V	1	4.5 V	Positive	0.9 V	Yes	Step-Down	37.8 V	Surface Mount	20-WFQFN Exposed Pad	4 mm	20-TQFN	4 mm	125 °C	-40 °C
Analog Devices Inc./Maxim Integrated MAX17543EVKITA#	Fully Populated	Board(s)	1	Non-Isolated	1 count	450 kHz	Board	MAX17543	Buck	42 V	5 V	DC/DC Step Down	2.5 A	3.3 V
Analog Devices Inc./Maxim Integrated MAX17543ATP+T				Adjustable									2.5 A		100 kHz	2.2 MHz	Buck	42 V	1	4.5 V	Positive	0.9 V	Yes	Step-Down	37.8 V	Surface Mount	20-WFQFN Exposed Pad	4 mm	20-TQFN	4 mm	125 °C	-40 °C

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

EE-Sim Design, Simulation Environment Guide

Package Drawing - Thin Quad Flatpack, No Leads

UG-5861: EE-SIM Design and Simulation Environment User Guide