参数资料
| 型号： | MAX4193CSA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST 525MA 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出数： | 1 |
| 输入电压： | 2 V ~ 16.5 V |
| 频率 - 开关： | 25kHz |
| 电流 - 输出： | 525mA |
| 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 |
CMOS Micropower Step-Up
Switching Regulator
Note that this circuit (with or without the MAX8212) can be
used to provide 5V from four alkaline cells. The initial volt-
age is approximately 6V, and the output is maintained at
5V even when the battery voltage falls to less than 2V.
Dual-Tracking Regulator
output from a 9V battery. The reference for the -15V
output is derived from the positive output through R3
and R4. Both regulators are set to maximize output
power at low-battery voltage by reducing the oscillator
frequency, through LBR, when V BATT falls to 7.2V.
A MAX634 inverting regulator is combined with a
MAX630 in Figure 8 to provide a dual-tracking ±15V
LINE-POWERED
+5V INPUT
3V
R3
249k Ω
L X 470 μ H
3
L X
MAX630 +V S
1N4148
5
+5V OUT
470 μ F
15V
1N5817
680 Ω
1N4001
470 μ H
3
L X
1N5817
UNINTERRUPTABLE
+5V OUTPUT
470 μ F
15V
R4
499k Ω
1
LBR
I C
V FB
6
7
R 1
540k Ω
3.6V
NICAD
BATTERY
200k Ω
1
LBR
MAX630
+V S
I C
5
6
280k Ω
LBD
8
C X
2
GND
4
R 2
200k Ω
100k Ω
8
LBD
V FB
7
C1
100pF
C X
47pF
GND
4
C X
2
47pF
100k Ω
POWER FAIL
Figure 5. 3V to 5V Converter with Low-Battery Frequency Shift
Figure 6. Uninterruptable +5V Supply
1.0mH
2.4M Ω
8
9V
BATTERY
3
L X
5
+V S
1M Ω
470 μ F
25V
10M Ω
2
HYST
MAX8212
OUT
1.3M Ω
1
LBR
MAX630
I C
V FB
6
7
2M Ω
3
THRESHOLD
1M Ω
390k Ω
GND
5
LBD
8
100pF
C X
2
GND
4
560k Ω
47pF
Figure 7. Battery Life Extension Down to 3V In
______________________________________________________________________________________
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4193CTV | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4193EJA | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX4193EPA | 功能描述:直流/直流开关调节器 CMOS uPower Step Up Switching Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX4193EPA+ | 功能描述:直流/直流开关调节器 CMOS uPower Step Up Switching Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX4193ESA | 功能描述:直流/直流开关调节器 CMOS uPower Step Up Switching Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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