參數(shù)資料
型號: MAX1889ETE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Triple-Output TFT LCD Power Supply with Fault Protection
中文描述: 2.8 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, QCC16
封裝: 5 X 5 MM, 0.80 MM HEIGHT, ULTRA THIN, QFN-16
文件頁數(shù): 8/32頁
文件大?。?/td> 796K
代理商: MAX1889ETE
M
Triple-Output TFT LCD Power Supply
with Fault Protection
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V
IN
= +3.3V, V
MAIN
= +9V, V
PL
= +20V, V
NL
= -7V,
SHDN
= FREQ = IN, PGND = GND, T
A
= +25
°
C, unless
otherwise noted.)
100
50
0.1
1
10
POSITIVE CHARGE-PUMP INCREMENTAL
EFFICIENCY vs. LOAD CURRENT
60
55
M
LOAD CURRENT (mA)
E
70
65
80
85
75
90
95
EFF = (V
OUT
I
OUT
) /
(P
IN(LOAD)
- P
IN(NOLOAD)
)
-8.2
-8.7
0.1
1
10
NEGATIVE CHARGE-PUMP
OUTPUT VOLTAGE vs. LOAD CURRENT
-8.6
M
LOAD CURRENT (mA)
O
-8.5
-8.4
-8.3
V
IN
= 3.3V
I
MAIN
= 200mA
100
50
0.1
1
10
NEGATIVE CHARGE-PUMP INCREMENTAL
EFFICIENCY vs. LOAD CURRENT
60
55
M
LOAD CURRENT (mA)
E
70
65
80
85
75
90
95
EFF = (V
OUT
I
OUT
) /
(P
IN(LOAD)
- P
IN(NOLOAD)
)
-0.15
-0.12
-0.09
-0.06
-0.03
0
0.1
1
10
POSITIVE LINEAR-REGULATOR
LOAD REGULATION
M
LOAD CURRENT (mA)
O
2ms/div
POSITIVE LINEAR-REGULATOR
LOAD-TRANSIENT RESPONSE
A
B
19.95V
10mA
0
A: V
PL
= 20V, 50mV/div, AC-COUPLED
B: I
PL
= 0 TO 10mA, 10mA/div
20V
-0.40
-0.32
-0.16
-0.24
0
0.1
1
10
NEGATIVE LINEAR-REGULATOR
LOAD REGULATION
M
LOAD CURRENT (mA)
O
-0.08
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