参数资料
型号: MAX1778EUG+T
厂商: Maxim Integrated Products
文件页数: 6/39页
文件大小: 0K
描述: IC DCDC CONV MULTI OUT 24TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 转换器,TFT,LCD
输入电压: 2.7 V ~ 5.5 V
输出数: 5
输出电压: 2.7 V ~ 13 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 带卷 (TR)
MAX1778/MAX1880–MAX1885
Quad-Output TFT LCD DC/DC
Converters with Buffer
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
Input Supply Range
Input Undervoltage
Threshold
SYMBOL
V IN
V UVLO
CONDITIONS
V IN Rising, 40mV hysteresis (typ)
MIN
2.7
2.2
MAX
5.5
2.6
UNITS
V
V
IN Quiescent Supply
Current
SUPP Quiescent Current
SUPN Quiescent Current
I IN
I SUPP
I SUPN
V FB =
V FBP = 1.5V,
V FBN = -0.2V
V FBP = 1.5V
V FBN = -0.2V
MAX1778/MAX1880/
MAX1883 (f OSC = 1MHz)
MAX1881/MAX1882/MAX1884/
MAX1885 (f OSC = 500kHz)
MAX1778/MAX1880
(f OSC = 1MHz)
MAX1881/MAX1882
(f OSC = 500kHz)
MAX1778/MAX1880
(f OSC = 1MHz)
MAX1881/MAX1882
(f OSC = 500kHz)
1
1
0.7
0.5
0.7
0.5
mA
mA
mA
IN Shutdown Current
SUPP Shutdown Current
SUPN Shutdown Current
SUPL Shutdown Current
SUPB Shutdown Current
V SHDN = 0, V IN = 5V
V SHDN = 0, V SUPP = 13V,
MAX1778/MAX1880/MAX1881/MAX1882
V SHDN = 0, V SUPN = 13V,
MAX1778/MAX1880/MAX1881/MAX1882
V SHDN = 0, V SUPL = 13V,
MAX1778/MAX1881/MAX1883/MAX1884
V SHDN = 0, V SUPB = 13V
10
10
10
10
13
μA
μA
μA
μA
μA
MAIN STEP-UP CONVERTER
Main Output Voltage Range
V MAIN
V IN
13
V
FB Regulation Voltage
FB Input Bias Current
Operating Frequency
Oscillator Maximum Duty
Cycle
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
FB Fault Trip Level
V FB
I FB
F OSC
R LX(ON)
I LX
I LIM
Integrator enabled, C INTG = 1000pF
Integrator disabled (INTG = REF)
V FB = 1.25V, INTG = GND
MAX1778/MAX1880/MAX1883
MAX1881/MAX1882/MAX1884/MAX1885
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
1.223
1.21
-50
0.75
375
79
0.275
1.1
1.07
1.269
1.29
+50
1.25
625
91
0.7
20
0.525
2.05
1.14
V
nA
MHz
kHz
%
?
μA
A
V
6
Maxim Integrated
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