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參數(shù)資料
| 型號： | MAX1748EUE+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Triple-Output TFT-LCD DC-DC Converters |
| 中文描述： | 2 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, 1.10 MM HEIGHT, 0.65 MM PITCH, EXPOSED PAD, TSSOP-16 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 278K |
| 代理商： | MAX1748EUE+T |
MAX1748
Triple-Output TFT LCD DC-DC Converter
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = +3.0V, SHDN = IN, VSUPP = VSUPN = 10V, TGND = PGND = GND, CREF = 0.22F, CINTG = 470pF, TA = 0°C to +85°C, unless
otherwise noted. Typical values are at TA = +25°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.
IN, SHDN, TGND to GND .........................................-0.3V to +6V
DRVN to GND .........................................-0.3V to (VSUPN + 0.3V)
DRVP to GND..........................................-0.3V to (VSUPP + 0.3V)
PGND to GND.....................................................................±0.3V
RDY to GND ...........................................................-0.3V to +14V
LX, SUPP, SUPN to PGND .....................................-0.3V to +14V
INTG, REF, FB, FBN, FBP to GND ...............-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........755mW
Operating Temperature Range
MAX1748EUE .................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Supply Range
VIN
2.7
5.5
V
Input Undervoltage Threshold
VUVLO
VIN rising, 40mV hysteresis (typ)
2.2
2.4
2.6
V
IN Quiescent Supply Current
IIN
VFB = VFBP = 1.5V, VFBN = -0.2V
0.6
1
mA
SUPP Quiescent Current
ISUPP
VFBP = 1.5V
0.4
0.8
mA
SUPN Quiescent Current
ISUPN
VFBN = -0.1V
0.4
0.8
mA
IN Shutdown Current
V SHDN = 0, VIN = 5V
0.1
10
A
SUPP Shutdown Current
V SHDN = 0, VSUPP = 13V
0.1
10
A
SUPN Shutdown Current
V SHDN = 0, VSUPN = 13V
0.1
10
A
MAIN BOOST CONVERTER
Output Voltage Range
VMAIN
VIN
13
V
FB Regulation Voltage
VFB
TA = 0
°C to +85°C
1.235
1.248
1.261
V
FB Input Bias Current
IFB
VFB = 1.25V, INTG = GND
-50
50
nA
Operating Frequency
fOSC
0.85
1
1.15
MHz
Oscillator Maximum Duty Cycle
78
85
90
%
Load Regulation
IMAIN = 0 to 200mA, VMAIN = 10V
0.2
%
Line Regulation
0.1
% / V
Integrator Gm
320
mho
LX Switch On-Resistance
RLX(ON)
ILX = 100mA
0.35
0.7
LX Leakage Current
ILX
VLX = 13V
0.01
20
A
Phase I = soft-start (1.0ms)
0.275
0.380
0.500
Phase II = soft-start (1.0ms)
0.75
Phase III = soft-start (1.0ms)
1.12
LX Current Limit
ILX(MAX)
Phase IV = fully on (after 3.0ms)
1.1
1.5
2.0
A
Maximum RMS LX Current
1A
Soft-Start Period
tSS
Power-up to the end of Phase III
3072 /
fOSC
s
FB Fault Trip Level
1.07
1.1
1.14
V
POSITIVE CHARGE PUMP
VSUPP Input Supply Range
VSUPP
2.7
13
V
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相關代理商/技術參數(shù) |
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|---|---|
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