參數(shù)資料
型號(hào)： MAX1748
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： Triple-Output TFT LCD DC-DC Converter
中文描述： 三輸出TFT-LCD DC-DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 5/16頁(yè)
文件大小： 277K
代理商： MAX1748
M
Triple-Output TFT LCD DC-DC Converter
_______________________________________________________________________________________
5
9.84
9.90
9.88
9.86
9.92
9.94
9.96
9.98
10.00
10.02
10.04
0
200
100
300
400
500
600
MAIN OUTPUT VOLTAGE
vs. LOAD CURRENT
M
I
MAIN
(mA)
V
M
(
V
IN
= 3.3V
V
IN
= 5.0V
60
65
70
75
80
85
90
95
100
0
200
100
300
400
500
600
MAIN STEP-UP CONVERTER
EFFICIENCY vs. LOAD CURRENT
(BOOST ONLY)
M
I
MAIN
(mA)
E
V
IN
= 3.3V
V
MAIN
= 10V
V
IN
= 5.0V
60
65
70
75
80
85
90
95
100
0
200
100
300 400
I
MAIN
(mA)
500
800
600
700
MAIN STEP-UP CONVERTER
EFFICIENCY vs. LOAD CURRENT
(BOOST ONLY)
M
E
V
IN
= 3.3V
V
MAIN
= 8V
V
IN
= 5.0V
50
55
60
65
70
75
80
85
90
0
100
50
150 200
I
MAIN
(mA)
250
400
300
350
EFFICIENCY vs. LOAD CURRENT
(BOOST CONVERTER AND CHARGE PUMPS)
M
E
V
MAIN
= 8V
V
IN
= 3.3V
V
NEG
= -5V WITH I
NEG
= 10mA
V
POS
= 15V WITH I
POS
= 5mA
V
MAIN
= 10V
-5.05
-4.95
-5.00
-4.80
-4.85
-4.90
-4.65
-4.70
-4.75
-4.60
0
15
20
5
10
25
30
35
40
NEGATIVE CHARGE-PUMP OUTPUT
VOLTAGE vs. LOAD CURRENT
M
I
NEG
(mA)
V
N
V
SUPN
= 6V
V
NEG
= -5V
V
SUPN
= 8V
V
SUPN
= 10V
20
30
50
40
70
60
80
0
15
20
5
10
25
30
35
40
NEGATIVE CHARGE-PUMP EFFICIENCY
vs. LOAD CURRENT
M
I
NEG
(mA)
E
V
SUPN
= 6V
V
NEG
= -5V
V
SUPN
= 8V
V
SUPN
= 10V
Typical Operating Characteristics
(Circuit of Figure 5, V
IN
= 3.3V, T
A
= +25
°
C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= +3.0V,
SHDN
= IN, V
SUPP
= V
SUPN
= 10V, TGND = PGND = GND, C
REF
= 0.22μF, C
INTG
= 470pF,
T
A
= -40
°
C to +85
°
C
,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
LOGIC SIGNALS
SHDN
Input Low Voltage
0.45V hysteresis (typ)
0.9
V
SHDN
Input High Voltage
SHDN
Input Current
RDY
Output Low Voltage
RDY
Output High Leakage
2.1
V
I
SHDN
1
μ
A
V
μ
A
I
SINK
= 2mA
V
RDY
= 13V
0.5
1
Note 1:
Specifications from 0
°
C to -40
°
C are guaranteed by design, not production tested.
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