参数资料
型号: MAX8570ELT+T
厂商: Maxim Integrated Products
文件页数: 6/11页
文件大小: 0K
描述: IC CONV LCD STEP-UP 6-UDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
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: 6-WDFN
供应商设备封装: 6-uDFN(2x2)
包装: 标准包装
其它名称: MAX8570ELT+TDKR
High-Efficiency LCD Boost
with True Shutdown
V CC
SW
LX
SHDN
THERMAL
SHUTDOWN
ILIM
OUT
(MAX8572/MAX8573/
MAX8575 ONLY)
MAX8570–
MAX8575
CONTROL
LOGIC
EA
1.226V
FB
(MAX8570/MAX8571/
MAX8574 ONLY)
GND
Figure 1. Functional Diagram
L1
22 μ H
L1
22 μ H
D1
V OUT = V CC TO 28V
D1
V OUT = 15V
C3
4.7 μ F
SW
MAX8570
LX
C4
10pF
R1
C2
1 μ F
C3
4.7 μ F
SW
MAX8572
LX
C2
1 μ F
V CC = 2.7V TO 5.5V
C1
1 μ F
V CC
MAX8571
MAX8574
FB
R2
V CC = 2.7V TO 5.5V
C1
1 μ F
V CC
MAX8573
MAX8575 OUT
ON
OFF
SHDN
GND
ON
OFF
SHDN
GND
Figure 2. Typical Application Circuit with Adjustable Output
Voltage
Figure 3. Typical Application Circuit with 15V Preset Output
Voltage
V BATT = 0.8V TO 28V
L1
22 μ H
L1
22 μ H
C3
4.7 μ F
V CC = 2.7V TO 5.5V
C1
1 μ F
SW
V CC
MAX8570
MAX8571
MAX8574
LX
FB
D1
C4
10pF
V OUT = V BATT TO 28V
C2
R1 1 μ F
R2
C3
4.7 μ F
V CC = 2.7V TO 5.5V
C1
1 μ F
SW
V CC
MAX8570
MAX8571
MAX8574
LX
FB
D1
C4
10pF
C6
0.1 μ F D3
R1
C2
1 μ F
R2
+V OUT
-V OUT
ON
OFF
SHDN
GND
ON
OFF
SHDN
GND
D2
C5
1 μ F
Figure 4. Using a Separate Input Supply for the Inductor
Figure 5. Negative Output Voltage for LCD Bias
6
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