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参数资料
| 型号： | MAX1822EPA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP ADJ 8DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 切换式电容器（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 14.5 V ~ 27.5 V |
| 输入电压： | 3.5 V ~ 16.5 V |
| 频率 - 开关： | 90kHz |
| 电流 - 输出： | 25mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 供应商设备封装： | 8-PDIP |
High-Side Power Supply
Output Ripple
V SUPPLY A
C4
1000 μ F
LOW ESR
V
C2
0.047 μ F
C2
0.047 μ F
1
7
6
2
C1+
C1-
C2+
C2-
8
V CC
MAX1822
GND
4
C3
1.0 μ F
V OUT 5
V OUT ripple is typically 50mVp-p with V CC = +5V, C1
and C2 = 0.047μF, and C3 = 1μF ( Typical Operating
Characteristics ). Ripple can be reduced by increasing
the ratio between the output storage capacitors C3 and
C1 and C2. This is usually accomplished by increasing
C3 and keeping C1 and C2 in the 0.01μF to 0.047μF
range. For example, if C1 and C2 are 0.047μF (V CC
must not exceed 13V) and C3 is 10μF, output ripple
typically falls to 15mV ( Typical Operating Character-
istics ).
Capacitor Selection
Capacitor type is unimportant when selecting capaci-
tors for the MAX1822. However, when V CC exceeds
Figure 2. MAX1822 Quiescent Supply-Current Test Circuit
13V, C1 and C2 must be no greater than 0.01μF. Using
larger value capacitors with input voltages above 13V
causes excessive amounts of energy to pass through
6-CHANNEL LOAD SWITCH
+5V
C2
0.047 μ F
1
7
C1+
C1-
8
V CC
V OUT
5
C4
1 μ F
C3
10 μ F
ALL PULLUP RESISTORS = 1M
ALL TRANSISTORS = 1RF541 (NOTE 2)
TO 1A LOAD
C2
0.047 μ F
6
2
C2+
C2-
MAX1822
GND
14
74C906
TO 1A LOAD
SW1
4
2
4
6
1
3
5
TO 1A LOAD
TO 1A LOAD
SW2
8
9
TO 1A LOAD
SW3
SW4
SW5
10
11
TO 1A LOAD
SW6
12
13
ALL CAPACITORS = 1 μ F
(NOTE 1)
7
NOTE 1: 1 μ F CAPACITORS SUPPRESS SWITCHING TRANSIENTS, SIZE DEPENDS ON LOAD CURRENTS.
NOTE 2: POWER TRANSISTOR TYPE DEPENDS ON LOAD-CURRENT REQUIREMENTS.
Figure 3. Single MAX1822 Driving Six High-Side Switches
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1822EPA+ | 功能描述:直流/直流开关调节器 High-Side Power Supply 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 |
| MAX1822ESA | 功能描述:直流/直流开关调节器 High-Side Power Supply 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 |
| MAX1822ESA+ | 功能描述:直流/直流开关调节器 High-Side Power Supply 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 |
| MAX1822ESA+T | 功能描述:直流/直流开关调节器 High-Side Power Supply 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 |
| MAX1822ESA-T | 功能描述:直流/直流开关调节器 High-Side Power Supply 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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