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参数资料
| 型号： | MAX1639 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Speed Step-Down Controller with Synchronous Rectification for CPU Power |
| 中文描述： | 高速、同步整流、降压型控制器，用于CPU电源 |
| 文件页数： | 4/13页 |
| 文件大小： | 108K |
| 代理商： | MAX1639 |
M
High-S peed S tep-Down Controller with
S ync hronous Rec tific ation for CPU Power
4
_______________________________________________________________________________________
FOLDBACK CURRENT LIMIT
(V
OUT
= 2.5V, NOMINAL)
M
A: V
OUT
= 0.5V/div
B: INDUCTOR CURRENT, 5A/div
A
B
10
μ
s/div
START-UP WAVEFORMS
M
A: INDUCTOR CURRENT, 2A/div
B: V
OUT
= 1V/div
A
B
400
μ
s/div
1
μ
s/div
SWITCHING WAVEFORMS
C
0
M
V
IN
= 5V, V
OUT
= 2.5V, LOAD = 0A
A: V
, 20mV/div
B: INDUCTOR CURRENT, 2A/div
C: LX, 5V/div
B
A
LOAD-TRANSIENT RESPONSE
(V
OUT
= 2.5V)
M
V
= 5V, V
= 2.5V, LOAD = 8A
A: V
OUT
, 100mV/div, AC COUPLED
B: INDUCTOR CURRENT, 5A/div
A
B
10
μ
s/div
__________________________________________Typic al Operating Charac teristic s
(T
A
= +25°C, using the MAX1639 evaluation kit, unless otherwise noted.)
100
50
0.1
10
EFFICIENCY vs. OUTPUT CURRENT
60
90
80
70
M
OUTPUT CURRENT (A)
E
1
3.5V
1.8V
2.5V
50
55
0
MAXIMUM DUTY CYCLE vs.
SWITCHING FREQUENCY
65
60
70
M
SWITCHING FREQUENCY (kHz)
M
85
95
90
75
80
200
800
1000 1200
100
600
400
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1640C | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
| MAX1640 | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
| MAX1640EEE | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
| MAX1640D | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
| MAX1641 | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX1639EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit the MAX1639 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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