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MAX17572 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Step-Down DC-DC Converter - Maxim Integrated

भाग संख्या MAX17572
समारोह Step-Down DC-DC Converter
मैन्युफैक्चरर्स Maxim Integrated 
लोगो Maxim Integrated लोगो 
पूर्व दर्शन
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<?=MAX17572?> डेटा पत्रक पीडीएफ

MAX17572 pdf
MAX17572
4.5V–60V, 1A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensaton
Absolute Maximum Ratings
VIN to PGND..........................................................-0.3V to +65V
EN/UVLO to GND......................................... -0.3V to VIN + 0.3V
EXTVCC to GND....................................................-0.3V to +26V
BST to PGND.........................................................-0.3V to +70V
LX to PGND................................................-0.3V to (VIN + 0.3)V
BST to LX..............................................................-0.3V to +6.5V
BST to VCC............................................................-0.3V to +65V
RESET, SS, RT/SYNC to GND.............................-0.3V to +6.5V
PGND to GND.......................................................-0.3V to +0.3V
FB to GND.............................................................-0.3V to +1.5V
VCC to GND..........................................................-0.3V to +6.5V
LX Total RMS Current.........................................................±1.6A
Continuous Power Dissipation (TA = +70°C)
(derate 24.4mW/°C above +70°C) (Multilayer board)...1951mW
Output Short-Circuit Duration.....................................Continuous
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +160°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°C
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. Junction temperature greater than +125°C degrades operating lifetimes.
Package Information
PACKAGE TYPE: 12 TDFN
Package Code
Outline Number
TD1233+1C
21-0664
Land Pattern Number
90-0397
THERMAL RESISTANCE, FOUR-LAYER BOARD
Junction to Ambient (θJA)
41°C/W
Junction to Case (θJC)
8.5°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VIN = VEN/UVLO = 24V, RRT = 40.2k, CVCC = 2.2µF, VPGND = VGND = EXTVCC = 0, 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 to GND, unless
otherwise noted.) (Note 1)
PARAMETER
INPUT SUPPLY (VIN)
Input Voltage Range
Input Shutdown Current
Input Quiescent Current
ENABLE/UVLO (EN)
EN/UVLO Threshold
EN/UVLO Input Leakage
Current
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
V­IN_
IIN-SH
IQ_PWM
VEN/UVLO = 0V (shutdown mode)
Normal switching mode, fSW = 500kHz,
VFB = 0.8V, EXTVCC = GND
4.5
 
 
4.65
5.2
60
7.25
V
µA
mA
VENR
VENF
IENLKG
VEN/UVLO rising
VEN/UVLO falling
VEN/UVLO = 1.25V, TA = 25°C
1.19
1.068
-50
1.215
1.09
 
1.26
1.131
+50
V
V
nA
www.maximintegrated.com
Maxim Integrated 2

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डाउनलोड[ MAX17572 Datasheet.PDF ]


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