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)： 11/16頁
文件大?。?/td> 278K
代理商： MAX1748EUE+T
MAX1748
Triple-Output TFT LCD DC-DC Converter
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
Input Supply Range
VIN
2.7
5.5
V
Input Undervoltage Threshold
VUVLO
VIN rising, 40mV hysteresis (typ)
2.2
2.6
V
IN Quiescent Supply Current
IIN
VFB = VFBP = 1.5V, VFBN = -0.2V
1
mA
SUPP Quiescent Current
ISUPP
VFBP = 1.5V
0.8
mA
SUPN Quiescent Current
ISUPN
VFBN = -0.1V
0.8
mA
IN Shutdown Current
V SHDN = 0, VIN = 5V
10
A
SUPP Shutdown Current
V SHDN = 0, VSUPP = 13V
10
A
SUPN Shutdown Current
V SHDN = 0, VSUPN = 13V
10
A
MAIN BOOST CONVERTER
Output Voltage Range
VMAIN
VIN
13
V
FB Regulation Voltage
VFB
1.225
1.271
V
FB Input Bias Current
IFB
VFB = 1.25V, INTG = GND
-50
50
nA
Operating Frequency
FOSC
0.75
1.25
MHz
Oscillator Maximum Duty Cycle
78
90
%
LX Switch On-Resistance
RLX(ON)
ILX = 100mA
0.7
LX Leakage Current
ILX
VLX = 13V
20
A
Phase I = soft-start (1.0ms)
0.275
0.500
LX Current Limit
ILX(MAX)
Phase IV = fully on (after 3.0ms)
1.1
2.0
A
FB Fault Trip Level
1.07
1.14
V
POSITIVE CHARGE PUMP
SUPP Input Supply Range
VSUPP
2.7
13
V
FBP Regulation Voltage
VFBP
1.20
1.30
V
FBP Input Bias Current
IFBP
VFBP = 1.5V
-50
50
nA
DRVP PCH On-Resistance
10
VFBP = 1.213V
4
DRVP NCH On-Resistance
VFBP = 1.275V
20
k
FBP Power-Ready Trip Level
Rising edge
1.091
1.159
V
NEGATIVE CHARGE PUMP
SUPN Input Supply Range
VSUPN
2.7
13
V
FBN Regulation Voltage
VFBN
-50
50
mV
FBN Input Bias Current
IFBN
VFBN = -0.05V
-50
50
nA
DRVN PCH On-Resistance
10
VFBN = 0.035V
4
DRVN NCH On-Resistance
VFBN = -0.025V
20
k
FBN Power-Ready Trip Level
Rising edge
80
165
mV
REFERENCE
Reference Voltage
VREF
-2
A < IREF < 50A
1.223
1.269
V
Reference Undervoltage
VREF rising
0.9
1.2
V
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +3.0V, SHDN = IN, VSUPP = VSUPN = 10V, TGND = PGND = GND, CREF = 0.22F, CINTG = 470pF, TA = -40°C to +85°C,
unless otherwise noted.) (Note 1)
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