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参数资料
| 型号： | MAX1649ESA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 300kHz |
| 占空比： | 96.5% |
| 电源电压： | 3 V ~ 16 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
5V/3.3V or Adjustable, High-Efficiency,
Low-Dropout, Step-Down DC-DC Controllers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Current-Limit Trip Level
(V+ to CS)
SYMBOL
V CS
3V ≤ V+ ≤ 16V
CONDITIONS
MIN
80
TYP
110
MAX
140
UNITS
mV
CS Input Current
3V ≤ V+ ≤ 16V
±1
μA
Switch Maximum On-Time t ON (max)
Switch Minimum Off-Time t OFF (min)
EXT Rise Time
EXT Fall Time
V+ = 12V
V+ = 12V
C EXT = 0.001μF, V+ = 12V
C EXT = 0.001μF, V+ = 12V
24
0.8
32
1.1
25
25
40
1.8
μs
μs
ns
ns
Maximum Duty Cycle
t ON
t ON + t OFF
x 100%
95
96.5
%
__________________________________________Typical Operating Characteristics
(T A = +25°C, unless otherwise noted.)
SHUTDOWN CURRENT
EXT RISE AND FALL TIMES
80
SUPPLY CURRENT vs. TEMPERATURE
4.0
vs. TEMPERATURE
60
vs. TEMPERATURE (1nF)
78
V+ = 16V
3.5
55
C EXT = 1nF
76
3.0
2.5
V+ = 16V
50
45
V+ = 5V, t RISE
74
72
70
68
V+ = 10V
V+ = 4V
2.0
1.5
1.0
0.5
V+ = 4V
V+ = 8V
40
35
30
25
20
V+ = 5V, t FALL
V+ = 15V, t RISE
V+ = 15V, t FALL
66
0
15
-60 -40 -20 0
20 40 60 80 100 120 140
-60 -40 -20 0
20 40 60 80 100 120 140
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
240
220
200
180
160
EXT RISE AND FALL TIMES
vs. TEMPERATURE (5nF)
C EXT = 5nF
V+ = 5V, t RISE
V+ = 5V, t FALL
100
90
80
EFFICIENCY
vs. LOAD CURRENT (V OUT = 5V)
V OUT = 5V
CIRCUIT OF
FIGURE 1
100
90
80
EFFICIENCY
vs. LOAD CURRENT (V OUT = 3.3V)
V OUT = 3.3V
CIRCUIT OF
FIGURE 1
140
120
100
80
60
40
V+ = 15V, t RISE
V+ = 15V, t FALL
-60 -40 -20 0 20 40 60 80 100 120 140
70
60
50
40
0.1
1
10
TOP TO
BOTTOM:
V IN = 6V
V IN = 8V
V IN = 10V
V IN = 12V
V IN = 15V
100 1k
10k
70
60
50
40
0.1
1
10
TOP TO
BOTTOM:
V IN = 4.3V
V IN = 5V
V IN = 8V
V IN = 10V
V IN = 12V
V IN = 15V
100 1k
10k
TEMPERATURE (°C)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
_______________________________________________________________________________________
3
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相关代理商/技术参数 |
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|---|---|
| MAX1649ESA+ | 功能描述:DC/DC 开关控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1649ESA+T | 功能描述:DC/DC 开关控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1649ESA-T | 功能描述:DC/DC 开关控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1649EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX649 MAX651 MAX652 and MAX1649 MAX1651 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1649EVKIT-SO | 功能描述:DC/DC 开关控制器 3V or Adjustable High-Efficiency Low-Dropout Step-Down DC-DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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