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参数资料
| 型号： | MAX758ACWE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.75A 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 16 V |
| 输入电压： | 4 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 160kHz |
| 电流 - 输出： | 750mA |
| 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： | 16-SOIC（0.295"，7.50mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-SOIC W |
Adjustable, Step-Down,
Current-Mode PWM Regulators
Table 1. Typical Soft-Start Times
MAX750A CIRCUIT CONDITIONS
SOFT-START TIME (ms) vs. C1 (μF)
R1 (k ? )
510
510
510
510
510
510
510
None
None
None
None
None
None
V+ (V)
6
9
11
9
9
9
9
6
9
11
9
9
9
I OUT (mA)
0
0
0
150
300
150
150
0
0
0
150
150
150
C4 (μF)
100
100
100
100
100
390
680
100
100
100
100
390
680
C1 = 0.01
2
1
1
1
1
3
4
16
10
8
34
39
40
C1 = 0.047
6
4
2
4
5
6
6
34
22
18
134
147
152
C1 = 0.1
11
6
4
8
9
9
9
51
34
28
270
280
285
C1 = 0.47
28
15
11
21
27
23
24
125
82
66
1263
1275
1280
MAX750A CIRCUIT CONDITIONS
SOFT-START TIME (ms) vs. C1 (μF)
R1 (k ? )
510
510
510
510
510
None
None
None
None
V+ (V)
7
12
16
12
12
7
12
16
12
I OUT (mA)
0
0
0
300
750
0
0
0
300
C4 (μF)
100
100
100
100
100
100
100
100
100
C1 = 0.01
1
1
1
1
1
12
7
6
27
C1 = 0.047
4
2
1
3
5
27
16
13
112
C1 = 0.1
6
3
2
5
8
40
25
20
215
C1 = 0.47
18
8
6
3
21
100
54
68
1114
as the temperature falls, and excessive ESR is the most
likely cause of trouble at temperatures below 0°C.
Sanyo OS-CON series through-hole and surface-mount
tantalum capacitors exhibit low ESR at temperatures
below 0°C. Refer to Table 2 for recommended capaci-
tor values and suggested capacitor suppliers.
Other Components
The catch diode should be a Schottky or high-speed
silicon rectifier with a peak current rating of about 1A
for full-load (750mA) operation. The 1N5817 is a good
choice. The 330pF outer-loop compensation capacitor
provides the widest input voltage range and best tran-
sient characteristics. For low-current applications, the
510k ? resistor may be omitted (see the Maximum
Output Current vs. Supply Voltage, R1 Removed graph
in the Typical Operating Characteristics).
Printed Circuit Layouts
A good layout is essential for clean, stable operation.
The layouts and component placement diagrams given
in Figures 4-7 have been successfully tested over a
wide range of operating conditions. The 1μF bypass
capacitor (C2) must be positioned as close to the V+
10
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| MAX758ACWE+ | 功能描述:直流/直流开关调节器 Adjustable PWM Step-Down Regulator 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 |
| MAX758ACWE+T | 功能描述:直流/直流开关调节器 Adjustable PWM Step-Down Regulator 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 |
| MAX758ACWE-T | 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 |
| MAX758ACWE-TG068 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX758AEPA | 功能描述:直流/直流开关调节器 Adjustable PWM Step-Down Regulator 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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