MAX17536ATP datasheet(2/19 Pages) MAXIM

2 / 19 page

VINtoPGND .........................................................-0.3V to +65V

EN/UVLO,SStoSGND ........................................-0.3V to +65V

LXtoPGND................................................-0.3V to (VIN + 0.3V)

BSTtoPGND........................................................-0.3V to +70V

BSTtoLX.............................................................-0.3V to +6.5V

BST to VCC ...........................................................-0.3V to +65V

FB, CF, RESET,MODE/SYNC,RTtoSGND ......-0.3V to +6.5V

DL,VCCtoPGND ................................................-0.3V to +6.5V

SGNDtoPGND....................................................-0.3V to +0.3V

EXTVCCtoPGND ................................................-0.3V to +26V

LXTotalRMSCurrent ........................................................±9.9A

Output Short-Circuit Duration....................................Continuous

Continuous Power Dissipation (TA = +70°C) (multilayer board)

TQFN (derate 33.3mW/°C above TA = +70°C)......2666.7mW

OperatingTemperatureRange(Note1)........... -40°C to +125°C

Junction Temperature......................................................+150°C

StorageTemperatureRange............................ -65°C to +160°C

LeadTemperature(soldering,10s) .................................+300°C

Soldering Temperature (reflow).......................................+260°C

PACKAGE TYPE: 20 TQFN-EP*

Package Code

T2055+4

Outline Number

21-0140

LandPatternNumber

90-0009

THERMAL RESISTANCE, FOUR-LAYER BOARD: (Note 2)

JunctiontoAmbient(θJA)

23°C/W

JunctiontoCase(θJC)

2°C/W

Note 1: Junction temperature greater than +125°C degrades operating lifetimes

Note 2: Applicable only to the Evaluation Kit in free space with no airflow.

(VIN = VEN/UVLO=24V,RRT=open(450kHz),CVCC = 2.2µF, VPGND = VSGND = VMODE/SYNC=0V,LX=SS=RESET = open, VBST

to VLX = 5V, VFB = 1V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are referenced

toSGND,unlessotherwisenoted.)(Note3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX UNITS

INPUT SUPPLY (VIN)

InputVoltageRange

VIN

4.5

Input Shutdown Current

IIN-SH

VEN/UVLO = 0V (shutdown mode)

3.5

5.5

µA

Input Quiescent Current

IQ_PFM

VFB = 1V, MODE = RT=open

128

VFB = 1V, MODE =open,RRT=40.2kΩ

168

IQ_DCM

DCM mode, VLX= 0.1V

1.27

ENABLE/UVLO (EN/UVLO)

EN/UVLOThreshold

VENR

VEN/UVLOrising

1.19

1.215 1.24

VENF

VEN/UVLOfalling

1.068

1.09

1.112

EN/UVLOInputLeakageCurrent

IEN

VEN/UVLO = 1.245V, TA = +25°C

-50

+50

Maxim Integrated │ 2

MAX17536

4.5V to 60V, 4A, High-Efficiency, Synchronous

Step-Down DC-DC Converter

with Internal Compensation

www.maximintegrated.com

Electrical Characteristics

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these

or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.

Absolute Maximum Ratings

Package Information

For the latest package outline information and land patterns (footprints), go to

www.maximintegrated.com/packages. Note that a “+”,

“#”,or“-”inthepackagecodeindicatesRoHSstatusonly.Packagedrawingsmayshowadifferentsuffixcharacter,butthedrawing

pertainstothepackageregardlessofRoHSstatus.

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