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参数资料
| 型号： | MAX639CSA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 5V/ADJ 225MA 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 5V，1.3 V ~ 11.5 V |
| 输入电压： | 4 V ~ 11.5 V |
| 电流 - 输出： | 225mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
5V/3.3V/3V/Adjustable, High-Efficiency,
Low I Q , Step-Down DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
V+...........................................................................................12V
LX .........................................................(V+ - 12V) to (V+ + 0.3V)
LBI, LBO, VFB, SHDN, VOUT........................-0.3V to (V+ + 0.3V)
LX Output Current (Note 1) ......................................................1A
LBO Output Current ............................................................10mA
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Ranges:
MAX639C_ _ .......................................................0°C to +70°C
MAX639E_ _ ....................................................-40°C to +85°C
MAX639MJA ..................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C) ..........................471mW
CERDIP (derate 8.00mW/°C above +70°C) ..................640mW
Note 1: Peak inductor current must be limited to 600mA by using an inductor of 100μH or greater.
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+ = 9V for the MAX639, V+ = 5V for the MAX640/MAX653, I LOAD = 0mA, T A = T MIN to T MAX , typical values are at T A = +25°C,
unless otherwise noted.)
PARAMETER
Supply Voltage
Supply Current
Output Voltage (Note 2)
Dropout Voltage
CONDITIONS
SHDN = V+, no load
MAX639, V+ = 6.0V to 11.5V, 0mA < I OUT < 100mA
MAX640, V+ = 4.0V to 11.5V, 0mA < I OUT < 100mA
MAX653, V+ = 4.0V to 11.5V, 0mA < I OUT < 100mA
I OUT = 100mA, L = 100μH
MIN
4.0
4.80
3.17
2.88
TYP
10
5.00
3.30
3.00
0.5
MAX
11.5
20
5.20
3.43
3.12
UNITS
V
μA
V
V
MAX639
I OUT = 100mA, L = 100μH
I OUT = 25mA, L = 470μH
91
94
Efficiency
MAX640
MAX653
I OUT = 100mA, L = 100μH
I OUT = 25mA, L = 470μH
I OUT = 100mA, L = 100μH
I OUT = 25mA, L = 470μH
87
91
85
89
%
MAX639
V+ = 9V, V OUT = 5V
V+ = 6V, V OUT = 3V
10.6
14.2
12.5
16.7
14.4
19.2
Switch On-Time
Switch Off-Time
MAX640
MAX653
MAX639
MAX640
MAX653
V+ = 9V, V OUT = 3.3V
V+ = 4V, V OUT = 3.3V
V+ = 9V, V OUT = 3V
V+ = 4V, V OUT = 3V
V+ = 9V, V OUT = 5V
V+ = 6V, V OUT = 3V
V+ = 9V, V OUT = 3.3V
V+ = 4V, V OUT = 3.3V
V+ = 9V, V OUT = 3V
V+ = 4V, V OUT = 3V
7.5
60.7
7.1
42.5
9.0
16.6
13.3
13.3
14.6
14.6
8.8
71.4
8.3
50.0
11.7
19.5
15.6
15.6
17.2
17.2
10.1
82.1
9.5
57.5
13.5
22.4
17.9
17.9
19.8
19.8
μs
μs
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX639EPA | 功能描述:直流/直流开关转换器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX639EPA+ | 功能描述:直流/直流开关转换器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX639ESA | 功能描述:直流/直流开关转换器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX639ESA+ | 功能描述:直流/直流开关转换器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX639ESA+T | 功能描述:直流/直流开关转换器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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