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參數(shù)資料
| 型號： | MAX1745AUB+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High-Voltage, Step-Down DC-DC Controller in µMAX |
| 中文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | MICRO MAX PACKAGE-10 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 256K |
| 代理商： | MAX1745AUB+T |
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 MAX package.
________________________Applications
Automotive Electronics
Telecom Systems
Wall-Cube-Powered Devices
Industrial Control Systems
Firewire/IEEE1394
____________________________Features
o High-Voltage Operation (up to 36V IN)
o Efficiency >90%
o Output Power Capability Exceeds 50W
o 10-Pin Max Package
o Low-Dropout Voltage
o 100% (max) Duty Cycle
o 90A Quiescent Current
o 4A Shutdown Current
o Up to 330kHz Switching Frequency
o Output Voltage
5V or 3.3V (MAX1744)
Adjustable 1.25V to 18V (MAX1745)
o Current-Limited Control Scheme
MAX1744/MAX1745
High-Voltage, Step-Down DC-DC
Controller in MAX
________________________________________________________________ Maxim Integrated Products
1
19-1776; Rev 1; 10/01
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX1744EUB
-40
°C to +85°C
10 MAX
MAX1744AUB
-40
°C to +125°C
10 MAX
MAX1745EUB
-40
°C to +85°C
10 MAX
MAX1745AUB
-40
°C to +125°C
10 MAX
GND
OUT
REF
VL
CS
MAX1744
3/5
5V
3.3V
ON
OFF
SHDN
IN
VH
EXT
P
IN
4.5V TO 36V
OUT
3.3V
OR 5V
Typical Operating Circuit
1
2
3
4
5
10
9
8
7
6
IN
EXT
VH
3/5 (FB)
( ) ARE FOR MAX1745 ONLY.
REF
VL
GND
MAX1744
MAX1745
MAX
TOP VIEW
CS
OUT
SHDN
Pin Configuration
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1745EUB+T | High-Voltage, Step-Down DC-DC Controller in µMAX |
| MAX1744AUB+ | High-Voltage, Step-Down DC-DC Controller in µMAX |
| MAX1744EUB+ | High-Voltage, Step-Down DC-DC Controller in µMAX |
| MAX1745AUB+ | High-Voltage, Step-Down DC-DC Controller in µMAX |
| MAX1745EUB/V+ | High-Voltage, Step-Down DC-DC Controller in µMAX |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1745EUB | 功能描述:DC/DC 開關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1745EUB | 制造商:Maxim Integrated Products 功能描述:HI VOLT STEP DOWN DC-DC SMD 1745 |
| MAX1745EUB/V+ | 功能描述:DC/DC 開關(guān)控制器 High-Voltage Step-Down DC-DC Controller in MAX RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1745EUB/V+T | 功能描述:DC/DC 開關(guān)控制器 High-Voltage Step-Down DC-DC Controller in MAX RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1745EUB+ | 功能描述:DC/DC 開關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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