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MAX1761 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Small / Dual / High-Efficiency Buck Controller for Notebooks - Maxim

भाग संख्या MAX1761
समारोह Small / Dual / High-Efficiency Buck Controller for Notebooks
मैन्युफैक्चरर्स Maxim 
लोगो Maxim लोगो 
पूर्व दर्शन
1 Page
		
<?=MAX1761?> डेटा पत्रक पीडीएफ

MAX1761 pdf
Small, Dual, High-Efficiency
Buck Controller for Notebooks
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +22V
VL to GND ................................................................-0.3V to +6V
VL to V+ .............................................................................+0.3V
OUT_, ON2 to GND ..................................................-0.3V to +6V
ON1, DH_ to GND ........................................-0.3V to (V+ + 0.3V)
FB_, REF, DL_ to GND.................................-0.3V to (VL + 0.3V)
CS_ to GND .....................................................-2V to (V+ + 0.3V)
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation
16-Pin QSOP (derate 8.3mW/°C above +70°C) ......….667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-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
(Circuit of Figure 1, V+ = 15V, CVL = 4.7µF, CREF = 0.1µF, VL not externally driven unless otherwise noted, TA = 0°C to +85°C, unless
otherwise noted.) (Note 1)
PARAMETER
PWM CONTROLLERS
Input Voltage Range
DC Output Voltage Accuracy
(Note 3)
Output Voltage Adjust Range
OUT_ Input Resistance
FB_ Input Bias Current
CS_ Input Bias Current
Soft-Start Ramp Time
On-Time (Note 4)
Minimum Off-Time (Note 4)
BIAS AND REFERENCE
Quiescent Supply Current
SYMBOL
CONDITIONS
V+
VOUT_
(Note 2)
V+ = 4.5V to 20V,
VL = 4.75V to 5.25V,
ON2 = VL
FB_ = OUT_
FB1 = GND
FB2 = GND
tON
tOFF
VFB_ = 1V, VL = 5V
VCS_ = 0, VL = 5V
Zero to full ILIM
V+ = 10V, VOUT1 = 2.5V,
VOUT2 = 1.8V
OUT1
OUT2
IL
FB1 = FB2 = GND, VL = 5V, VOUT1 and
VOUT2 forced above regulation point
FB1 = FB2 = GND, VOUT1 VL undriven
I+ and VOUT2 forced
above regulation point
VL = 5V
MIN TYP MAX UNITS
4.5
0.99
2.475
1.782
1
80
-0.1
-1
661
648
1
2.5
1.8
160
1700
735
720
400
20
1.01
2.525
1.818
5.5
300
0.1
1
809
792
500
V
V
V
k
µA
µA
µs
ns
ns
0.60
0.95
0.38
1.20
1.70
0.65
mA
mA
Shutdown Supply Current
VL Output Voltage
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
IL
I+
VL
VREF
IREF
VL = 5V, ON1 = ON2 = GND
VL = 0, 5V
ILOAD = 0 to 25mA, V+ = 5V to 20V
V+ = 5V to 20V, no load
IREF = 0 to 50µA
REF in regulation
Falling edge
Rising edge
4.5
1.98
5
4
4.65
2
10
1.6
1.94
10
10
4.75
2.02
8
µA
µA
V
V
mV
µA
V
2 _______________________________________________________________________________________

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डाउनलोड[ MAX1761 Datasheet.PDF ]


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