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MAX1798A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - CDMA Cellular/PCS System Power Supplies - Maxim Integrated

भाग संख्या MAX1798A
समारोह CDMA Cellular/PCS System Power Supplies
मैन्युफैक्चरर्स Maxim Integrated 
लोगो Maxim Integrated लोगो 
पूर्व दर्शन
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<?=MAX1798A?> डेटा पत्रक पीडीएफ

MAX1798A pdf
CDMA Cellular/PCS System
Power Supplies
ABSOLUTE MAXIMUM RATINGS
OFF, DR1, DR2 to GND............................................-0.3V to +6V
RSO................................................................................25mA
IN1, IN2/3, IN4/5, DIN (SDA) to GND .......................-0.3V to +6V
SCLK (SCK), BP, ON to GND...................................-0.3V to +6V
RSO, ONO to GND .................................-0.3V to (VOUT1 + 0.3V)
PGND to GND.....................................................................±0.3V
OUT1, CS (AS) to GND ..............................-0.3V to (VIN1 + 0.3V)
OUT2, OUT3 to GND...............................-0.3V to (VIN2/3 + 0.3V)
OUT4, OUT5 to GND...............................-0.3V to (VIN4/5 + 0.3V)
Continuous Sink Current
Continuous Power Dissipation (TA = +70°C)
20-Pin TQFN (derate 33.8mW/°C above +70°C) ...............2W
20-Pin TSSOP (derate 37.7mW/°C above +70°C) .............2W
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
DR1, DR2...............................................................100mARMS
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
(VIN1 = VIN2/3 = VIN4/5 = VSCLK (SCK) = VDIN (SDA) = V CS (AS) = V OFF = 3.6V; ON = GND = PGND = 0; RSO, ONO, DR1, DR2 =
open; BP bypassed with 0.01µF, OUT1 bypassed with 4.7µF; OUT2, OUT3, OUT4, OUT5 bypassed with 2.2µF; OUT1–5 set to 2.98V,
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
IN1, IN2/3, IN4/5 Operating
Voltage
2.5 5.5 V
Undervoltage Lockout IN1
Undervoltage Lockout IN2/3
Undervoltage Lockout IN4/5
Power-On Reset Threshold
Supply Current in Shutdown
Supply Current (Standby)
Supply Current (All Outputs On)
BP Voltage
BP Supply Rejection
OUT1 REGULATOR
Output Accuracy
Output Accuracy
(Line and Load)
VUVLO-1
VUVLO-2/3
VUVLO-4/5
ISHDN
ION
IN1 rising edge
IN2/3 rising edge
IN4/5 rising edge
IN1 falling edge
OFF = 0, ON = IN1
OUT1 ON, other regulators OFF IOUT1 = 0
All regulators ON, IOUT_ = 0
IBP 1nA
2.5V VIN1 5.5V
IOUT1 = 70mA (Note 3)
1mA IOUT1 300mA,
2.5V VIN1 5.5V, VOUT1 = 1.8V (Note 3)
2.10
2.10
2.10
0.9
1.231
2.30
2.30
2.30
1
113
367
1.250
0.2
2.45
2.45
2.45
2.1
10
230
680
1.269
5
V
V
V
V
µA
µA
µA
V
mV
-2 2 %
-3 3 %
Nominal Voltage Adjust Range
Dropout Voltage
Load Regulation
Line Regulation
Current Limit
32 steps through serial interface; Tables 2, 3
IOUT1 = 1mA (Notes 1, 3)
IOUT1 = 200mA (Notes 1, 3)
0.1mA IOUT1 300mA
2.5V VIN1 5.5V, VOUT1 = 1.8V (Note 3)
1.8
-0.15
320
1
73
-0.003
-0.03
500
3.3
125
0.11
850
V
mV
%/mA
%/V
mA
Output-Discharge Switch
Resistance in Shutdown
Regulator output turned off
25 300
OUT1 Reset Threshold
Output Voltage Noise
OUT1 rising and
falling
(MAX1798/MAX1799) -9.5 -7.5 -5.5
(MAX1798A/MAX1799A) -15 -13 -11
%
f = 10Hz to 100kHz, COUT = 4.7µF
45 µVRMS
2 _______________________________________________________________________________________

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डाउनलोड[ MAX1798A Datasheet.PDF ]


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