參數(shù)資料
型號: MAX1882EUG
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Quad-Output TFT LCD DC-DC Converters with Buffer
中文描述: 2.05 A SWITCHING REGULATOR, 625 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 4.40 MM, 1.10 MM HEIGHT, MO-153AD, TSSOP-24
文件頁數(shù): 6/38頁
文件大小: 1051K
代理商: MAX1882EUG
M
Quad-Output TFT LCD DC-DC
Converters with Buffer
6
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
IN
= +3.0V,
SHDN
= IN, V
SUPP
= V
SUPN
= V
SUPB
= V
SUPL
= 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND =
PGND = GND, C
REF
= 0.22μF, C
BUF
= 1μF,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
V
IN
CONDITIONS
MIN
2.7
MAX
5.5
UNITS
V
Input Supply Range
Input Undervoltage
Threshold
V
UVLO
V
IN
Rising, 40mV hysteresis (typ)
2.2
2.6
V
MAX1778/MAX1880/
MAX1883 (f
OSC
= 1MHz)
1
IN Quiescent Supply
Current
I
IN
V
FB
=
V
FBP
= 1.5V,
V
FBN
= -0.2V
MAX1881/MAX1882/MAX1884/
MAX1885 (f
OSC
= 500kHz)
1
mA
MAX1778/MAX1880
(f
OSC
= 1MHz)
0.7
SUPP Quiescent Current
I
SUPP
V
FBP
= 1.5V
MAX1881/MAX1882
(f
OSC
= 500kHz)
0.5
mA
MAX1778/MAX1880
(f
OSC
= 1MHz)
0.7
SUPN Quiescent Current
I
SUPN
V
FBN
= -0.2V
MAX1881/MAX1882
(f
OSC
= 500kHz)
0.5
mA
IN Shutdown Current
V
SHDN
= 0, V
IN
= 5V
V
SHDN
= 0, V
SUPP
= 13V,
MAX1778/MAX1880/MAX1881/MAX1882
10
μA
SUPP Shutdown Current
10
μA
SUPN Shutdown Current
V
SHDN
= 0, V
SUPN
= 13V,
MAX1778/MAX1880/MAX1881/MAX1882
10
μA
SUPL Shutdown Current
V
SHDN
= 0, V
SUPL
= 13V,
MAX1778/MAX1881/MAX1883/MAX1884
10
μA
SUPB Shutdown Current
MAIN STEP-UP CONVERTER
Main Output Voltage Range
V
SHDN
= 0, V
SUPB
= 13V
13
μA
V
MAIN
V
IN
1.223
1.21
-50
0.75
375
13
V
Integrator enabled, C
INTG
= 1000pF
Integrator disabled (INTG = REF)
V
FB
= 1.25V, INTG = GND
MAX1778/MAX1880/MAX1883
MAX1881/MAX1882/MAX1884/MAX1885
1.269
1.29
+50
1.25
625
FB Regulation Voltage
V
FB
V
FB Input Bias Current
I
FB
nA
MHz
kHz
Operating Frequency
F
OSC
Oscillator Maximum Duty
Cycle
79
91
%
LX Switch On-Resistance
LX Leakage Current
R
LX(ON)
I
LX
I
LX
= 100mA
V
LX
= 13V
Phase I = soft-start (1024/f
OSC
)
Phase IV = fully on (after 3072/f
OSC
)
Falling edge, FLTSET = GND
0.7
20
0.525
2.05
1.14
μA
0.275
1.1
1.07
LX Current Limit
I
LIM
A
FB Fault Trip Level
V
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