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MAX17245 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous Buck Converter - Maxim Integrated

भाग संख्या MAX17245
समारोह Synchronous Buck Converter
मैन्युफैक्चरर्स Maxim Integrated 
लोगो Maxim Integrated लोगो 
पूर्व दर्शन
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<?=MAX17245?> डेटा पत्रक पीडीएफ

MAX17245 pdf
MAX17245
3.5V–36V, 3.5A, Synchronous Buck Converter With
28μA Quiescent Current and Reduced EMI
Absolute Maximum Ratings
SUP, SUPSW, EN to PGND...................................-0.3V to +42V
LX (Note 1).............................................................-0.3V to +42V
SUP to SUPSW.....................................................-0.3V to +0.3V
BIAS to AGND..........................................................-0.3V to +6V
SYNCOUT, FOSC, COMP, FSYNC,
PGOOD, FB to AGND.........................-0.3V to (VBIAS + 0.3V)
OUT to PGND........................................................-0.3V to +12V
BST to LX (Note 1)...................................................-0.3V to +6V
AGND to PGND....................................................-0.3V to + 0.3V
LX Continuous RMS Current.................................................3.5A
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (TA = +70°C)*
TQFN (derate 28.6mW/ºC above +70°C)................2285.7mW
TSSOP (derate 26.1mW/ºC above +70°C).............2088.8mW
Operating Temperature Range........................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................ +260°C
*As per JEDEC51 standard (multilayer board).
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.
Package Thermal Characteristics (Note 2)
TQFN
Junction-to-Ambient Thermal Resistance (BJA)...........35ºC/W
Junction-to-Case Thermal Resistance (BJC)...............2.7ºC/W
TSSOP
Junction-to-Ambient Thermal Resistance (BJA)........38.3ºC/W
Junction-to-Case Thermal Resistance (BJC)..................3ºC/W
Note 1: Self-protected against transient voltages exceeding these limits for ≤ 50ns under normal operation and loads up to the maximum
rated output current.
Note 2: 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
(VSUP = VSUPSW = 14V, VEN = 14V, L1 = 2.2µH, CIN = 4.7µF, COUT = 22µF, CBIAS = 1µF, CBST = 0.1µF, RFOSC = 12kΩ,
TA = TJ = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
PARAMETER
Supply Voltage
Line Transient Event
Supply Voltage
Supply Current
Shutdown Supply Current
BIAS Regulator Voltage
BIAS Undervoltage Lockout
BIAS Undervoltage Lockout
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Threshold
Hysteresis
SYMBOL
VSUP, VSUPSW
CONDITIONS
VSUP_t_LT
tt_LT < 1s
ISUP_STANDBY
ISHDN
VBIAS
VUVBIAS
Standby mode, no load, VOUT = 5V,
VFSYNC = 0V
Standby mode, no load, VOUT = 3.3V,
VFSYNC = 0V
VEN = 0V
VSUP = VSUPSW = 6V to 42V,
IBIAS = 0 to 10mA
VBIAS rising
MIN TYP MAX UNITS
3.5 36 V
42 V
28 40
4.7
2.95
22
5
5
3.15
450
+175
15
35
10
5.4
3.40
650
µA
µA
V
V
mV
°C
°C
www.maximintegrated.com
Maxim Integrated 2

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डाउनलोड[ MAX17245 Datasheet.PDF ]


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