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参数资料
| 型号： | MAX1638EAG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC STEP-DWN CTRLR HI-SPD 24-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 应用： | 控制器，Intel Pentium? II |
| 输入电压： | 4.5 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 1.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 带卷 (TR) |
High-Speed Step-Down Controller with
Synchronous Rectification for CPU Power
__________________________________________Typical Operating Characteristics
(T A = +25°C, using the MAX1638 evaluation kit, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
WITHOUT GLITCHCATCHER (C OUT = 880 μ F)
A
B
10 μ s/div
V IN = 5V, V OUT = 2.0V, LOAD = 14A, 3A/ μ s
A: V OUT , 50mV/div, AC COUPLED
B: INDUCTOR CURRENT, 10A/div
FOLDBACK CURRENT LIMIT
A
LOAD-TRANSIENT RESPONSE
WITHOUT GLITCHCATCHER (C OUT = 440 μ F)
A
B
10 μ s/div
V IN = 5V, V OUT = 2.0V, LOAD = 14A, 3A/ μ s
A: V OUT , 100mV/div, AC COUPLED
B: INDUCTOR CURRENT, 10A/div
STARTUP WAVEFORMS
A
LOAD-TRANSIENT RESPONSE
WITH GLITCHCATCHER
A
B
C
D
10 μ s/div
C OUT = 440 μ F, V IN = 5V, V OUT = 2.0V, LOAD = 14A, 30A/ μ s
A: V OUT , 100mV/div, C: NDRV, 5V/div
AC COUPLED D: INDUCTOR CURRENT,
B: PDRV, 5V/div 10A/div
SWITCHING WAVEFORMS
B
A
C
B
10 μ s/div
V O = 2.0V NOMINAL
A: V OUT = 0.5V/div
B: INDUCTOR CURRENT, 5A/div
EFFICIENCY vs. OUTPUT CURRENT
B
400 μ s/div
A: V OUT = 0.5V/div
B: INDUCTOR CURRENT, 5A/div
REFERENCE VOLTAGE
vs. OUTPUT CURRENT
0
1 μ s/div
V IN = 5V, V OUT = 2.5V, LOAD = 5A
A: LX, 5V/div C: INDUCTOR CURRENT,
B: V OUT , 20mV/div, AC COUPLED 5A/div
MAXIMUM DUTY CYCLE
vs. SWITCHING FREQUENCY
100
90
80
V OUT = 3.5V
5.094
4.594
4.094
SINKING
CURRENT
100
95
90
85
70
60
50
40
30
V OUT = 2.0V
V OUT = 1.3V
3.594
3.094
2.594
2.094
1.594
1.094
SOURCING
CURRENT
80
75
70
65
60
55
50
0.1
1
10
100
0.001
0.01
0.1
1
10
0
200
400
600
800
1000
1200
OUTPUT CURRENT (A)
OUTPUT CURRENT (mA)
SWITCHING FREQUENCY (kHz)
_______________________________________________________________________________________
5
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相关代理商/技术参数 |
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| MAX1638VRMEVKIT | 功能描述:DC/DC 开关控制器 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power 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 |
| MAX1639ESE | 功能描述:DC/DC 开关控制器 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 |
| MAX1639ESE+ | 功能描述:DC/DC 开关控制器 High Speed 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 |
| MAX1639ESE+T | 功能描述:DC/DC 开关控制器 High Speed 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 |
| MAX1639ESE-T | 功能描述:DC/DC 开关控制器 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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