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参数资料
| 型号： | MAX1744AUB/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 100% |
| 电源电压： | 4.5 V ~ 36 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
19-1776; Rev 4; 8/09
ATION
EVALU
AVAILA
KIT
BLE
High-Voltage, Step-Down DC-DC
Controllers in μMAX
General Description
The MAX1744/MAX1745 are step-down DC-DC con-
trollers capable of handling up to 36V inputs. These
parts use a proprietary current-limited control scheme
for excellent light- and full-load efficiency, while their
330kHz (max) switching frequency permits small exter-
nal components for space-critical applications.
Operation to 100% duty cycle permits the lowest possi-
ble dropout voltage.
The MAX1744 contains an internal feedback network
that provides a pin-selectable output voltage of either
3.3V or 5V. The MAX1745 uses an external feedback
network to generate an adjustable output voltage
between 1.25V and 18V.
The MAX1744/MAX1745 are available in a space-sav-
ing 10-pin μMAX ? package.
________________________Applications
Automotive Electronics
Telecom Systems
____________________________Features
? High-Voltage Operation (Up to 36V IN)
? Efficiency > 90%
? Output Power Capability Exceeds 50W
? 10-Pin μ Max Package
? Low-Dropout Voltage
? 100% (max) Duty Cycle
? 90 μ A Quiescent Current
? 4 μ A Shutdown Current
? Up to 330kHz Switching Frequency
? Output Voltage
5V or 3.3V (MAX1744)
Adjustable 1.25V to 18V (MAX1745)
? Current-Limited Control Scheme
Ordering Information
Wall-Cube-Powered Devices
Industrial Control Systems
Firewire ? /IEEE ? 1394
PART
MAX1744 EUB+
MAX1744AUB+
MAX1744EUB/V+
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +125 ° C
-40 ° C to +85 ° C
PIN-PACKAGE
10 μMAX
10 μMAX
10 μMAX
μMAX is a registered trademark of Maxim Integrated Products, Inc.
Firewire is a registered trademark of Apple, Inc.
IEEE is a registered service mark of the Institute of Electrical
and Electronics Engineers, Inc.
Typical Operating Circuit
IN
4.5V TO 36V
MAX1745 EUB+ -40 ° C to +85 ° C 10 μMAX
MAX1745AUB+ -40 ° C to +125 ° C 10 μMAX
MAX1745EUB/V+ -40 ° C to +85 ° C 10 μMAX
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V Denotes an automotive qualified part.
Pin Configuration
TOP VIEW
+
ON
IN
VH
EXT
P
GND 1
10 IN
5V
OFF
3.3V
SHDN
3/5
MAX1744
VL
REF
CS
OUT
VL
REF
3/5 (FB)
OUT
2
3
4
5
MAX1744
MAX1745
9
8
7
6
EXT
VH
SHDN
CS
GND
OUT
3.3V
OR 5V
μ MAX
( ) ARE FOR MAX1745 ONLY.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1744EUB | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller 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 |
| MAX1744EUB/V+ | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller 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 |
| MAX1744EUB/V+T | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller 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 |
| MAX1744EUB+ | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller 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 |
| MAX1744EUB+ | 制造商:Maxim Integrated Products 功能描述:CONTROLLER STEP DOWN DC-DC 1744 制造商:Maxim Integrated Products 功能描述:CONTROLLER, STEP DOWN, DC-DC, 1744 |
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