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MAX1734 डेटा पत्रक PDF( Datasheet डाउनलोड )


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

भाग संख्या MAX1734
समारोह Step-Down DC-DC Converter
मैन्युफैक्चरर्स Maxim Integrated 
लोगो Maxim Integrated लोगो 
पूर्व दर्शन
1 Page
		
<?=MAX1734?> डेटा पत्रक पीडीएफ

MAX1734 pdf
Low-Voltage, Step-Down DC-DC Converters
in SOT23
ABSOLUTE MAXIMUM RATINGS
IN, SHDN to GND .....................................................-0.3V to +6V
OUT, FB, LX to GND ....................................-0.3V to (VIN + 0.3V)
OUT Short Circuit to GND ..........................................Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
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
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.
ELECTRICAL CHARACTERISTICS
(VIN = +2.7V to +5.5V, SHDN = IN, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Input Voltage Range
Startup Voltage
UVLO Threshold
UVLO Hysteresis
VIN
VSTART
VUVLO
VIN rising
VIN falling
2.7
1.55
1.85
1.65
200
5.5
2.0
1.95
Quiescent Supply Current
IIN
No switching, no load (FB/OUT above trip
point)
40 70
Shutdown Supply Current
Output Voltage Range (MAX1733)
Output Voltage Accuracy
(MAX1734)
Load Regulation
Line Regulation
OUT Sense Current (MAX1734)
FB Feedback Threshold
(MAX1733)
FB Leakage Current (MAX1733)
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Leakage Current
High-Side Current Limit
Low-Side Current Limit
High-Side On-Resistance
Rectifier On-Resistance
Rectifier Off-Current Threshold
LX Leakage Current
LX Reverse Leakage Current
Minimum On-Time
Minimum Off-Time
ISHDN
VOUT
VFB
IFB
VIH
VIL
ISHDN
ILIMP
ILIMN
RONP
RONN
ILXOFF
ILXLEAK
ILXLK,R
tON(MIN)
tOFF(MIN)
SHDN = GND
IOUT = 0, TA = +25°C
IOUT = 0 to 250mA
IOUT = 0 to 250mA
VIN = 2.7V to 5.5V
VOUT = VREG, VIN = V SHDN= 5V
TA = +25°C, VIN = 3.6V
VIN = 3.6V
VFB = 1.5V
2.7V < VIN < 5.5V
2.7V < VIN < 5.5V
SHDN = GND or IN
ILX = -50mA, VIN = 3.0V
ILX = -50mA, VIN = 5.5V
ILX = -50mA, VIN = 3.0V
ILX = -50mA, VIN = 5.5V
VIN = 5.5V, VLX = 0 to VIN
IN unconnected, VLX = 5.5V, SHDN = GND
VIN = 3.6V
VIN = 3.6V
1.25
-1.5
-3
1.231
1.220
1.6
300
200
0.28
0.28
0.01
0
0
4
1.250
0.001
0.001
425
325
0.7
0.5
1.0
0.8
40
0.1
0.1
0.4
0.4
4
2.0
+1.5
+3
8
1.269
1.280
0.2
0.4
1
535
430
1.4
1.1
2
1.6
5
5
0.5
0.5
UNITS
V
V
V
mV
µA
µA
V
%
%/mA
%/V
µA
V
µA
V
V
µA
mA
mA
mA
µA
µA
µs
µs
2 _______________________________________________________________________________________

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डाउनलोड[ MAX1734 Datasheet.PDF ]


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