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参数资料
| 型号： | MAX8574EUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC CONV LCD BOOST SOT23-6 |
| 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，LCD |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 2.7 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
High-Efficiency LCD Boost
with True Shutdown
ABSOLUTE MAXIMUM RATINGS
V CC , SHDN to GND ..................................................-0.3V to +6V
SW to GND .................................................-0.3V to (V CC + 0.3V)
FB to GND (MAX8570/MAX8571/
MAX8574)...............................................-0.3V to (V CC + 0.3V)
OUT to GND (MAX8572/MAX8573/MAX8575) .......-0.3V to +30V
LX to GND ..............................................................-0.3V to +30V
I LX , I CC ..............................................................................600mA
Continuous Power Dissipation (T A = +70°C)
μDFN (derate 4.5mW/°C above +70°C)....................357.8mW
SOT23-6 (derate 8.7mW/°C above +70°C)...............695.7mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V CC = V SHDN = 3.6V, SW open, V FB = 1.3V (MAX8570/MAX8571/MAX8574) or V OUT = 16V (MAX8572/MAX8573/MAX8575), T A =
-40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
V CC Input Voltage Range
V CC Undervoltage Lockout
V CC Supply Current
V CC Shutdown Current
CONDITIONS
V CC rising, 50mV typical hysteresis
SHDN = GND, V CC = 5.5V
T A = +25 ° C
T A = -40 ° C to +85 ° C
MIN
2.70
2.33
TYP
2.5
25
0.05
0.05
MAX
5.50
2.65
35
1
UNITS
V
V
μA
μA
Line Regulation
Load Regulation
Circuit of Figure 3, V OUT = 15V, I LOAD = 5mA,
V CC = 2.7V to 5.5V
Circuit of Figure 3, V OUT = 15V, I LOAD = 0 to 5mA
0.1
0.1
%/V
%/mA
FB Regulation Voltage
FB Input Bias Current
OUT Regulation Voltage
OUT Input Bias Current
T A = 0 ° C to +85 ° C
T A = -40 ° C to +85 ° C
T A = 0 ° C to +85 ° C
T A = -40 ° C to +85 ° C
V OUT = 15V
1.216
1.2137
-50
14.85
14.813
1.226
-4
15
2.4
1.236
1.2383
+50
15.15
15.187
4.4
V
nA
V
μA
LX Voltage Range
28
V
MAX8571/MAX8573
0.217
0.241
0.267
LX Switch Current Limit (Note 2)
LX On-Resistance
MAX8570/MAX8572
MAX8574/MAX8575
MAX8571/MAX8573/MAX8574/MAX8575, I LX = 100mA
MAX8570/MAX8572, I LX = 50mA
0.088
0.425
0.101
0.484
0.9
1.5
0.108
0.540
1.5
2.4
A
Ω
LX Leakage Current
Maximum LX On-Time
V LX = 28V
T A = +25 ° C
T A = -40 ° C to +85 ° C
8
0.01
0.05
11
2
14
μA
μs
Minimum LX Off-Time
V FB > 1V or V OUT > 12.2V
V FB = 0.25V or V OUT = 3.4V
0.8
4.0
1
5
1.2
6.0
μs
Current-Limit Propagation Delay
55
ns
SHDN Low Level (V IL )
SHDN High Level (V IH )
2.7V ≤ V CC ≤ 5.5V
4.2V ≤ V CC ≤ 5.5V
2.7V ≤ V CC < 4.2V
1.5
1.4
0.7
V
V
SHDN Leakage Current
-1
+1
μA
2
_______________________________________________________________________________________
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