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MAX8545EUB+T

更新时间： 2024-10-01 13:11:07
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
18页 342K
描述
Switching Controller, Voltage-mode, 360kHz Switching Freq-Max, BICMOS, PDSO10, MO-187C-BA, MSOP-10

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MAX8545EUB+T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP, TSSOP10,.19,20针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01Factory Lead Time：6 weeks
风险等级：0.84模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：2.5 V
标称输入电压：5 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP10,.19,20
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：360 kHz技术：BICMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

MAX8545EUB+T 数据手册

 浏览型号MAX8545EUB+T的Datasheet PDF文件第2页浏览型号MAX8545EUB+T的Datasheet PDF文件第3页浏览型号MAX8545EUB+T的Datasheet PDF文件第4页浏览型号MAX8545EUB+T的Datasheet PDF文件第5页浏览型号MAX8545EUB+T的Datasheet PDF文件第6页浏览型号MAX8545EUB+T的Datasheet PDF文件第7页 
19-2795; Rev 0; 7/03  
Low-Cost, Wide Input Range, Step-Down  
Controllers with Foldback Current Limit  
General Description  
Features  
The MAX8545/MAX8546/MAX8548 are voltage-mode  
pulse-width-modulated (PWM), step-down DC-DC con-  
trollers ideal for a variety of cost-sensitive applications.  
They drive low-cost N-channel MOSFETs for both the  
high-side switch and synchronous rectifier, and require  
no external current-sense resistor. These devices can  
supply output voltages as low as 0.8V.  
ꢀ 2.7V to 28V Input Range  
ꢀ Foldback Short-Circuit Protection  
ꢀ No Additional Bias Supply Needed  
ꢀ 0.8V to 0.83 x V Output  
IN  
ꢀ Up to 95% Efficiency  
ꢀ Low-Cost External Components  
ꢀ No Current-Sense Resistor  
ꢀ All N-Channel MOSFET Design  
The MAX8545/MAX8546/MAX8548 have a wide 2.7V to  
28V input range, and do not need any additional bias  
voltage. The output voltage can be precisely regulated  
from 0.8V to 0.83 x V . These devices can provide effi-  
IN  
ꢀ Adaptive Gate Drivers Eliminate Shoot-Through  
ciency up to 95%. Lossless short-circuit and current-limit  
protection is provided by monitoring the R  
of the  
DS(ON)  
ꢀ Lossless Overcurrent and Short-Circuit  
Protection  
ꢀ 300kHz Switching Frequency  
(MAX8545/MAX8546)  
low-side MOSFET. The MAX8545 and MAX8548 have a  
current-limit threshold of 320mV, while the MAX8546 has  
a current-limit threshold of 165mV. All devices feature  
foldback-current capability to minimize power dissipation  
under short-circuit condition. Pulling the COMP/EN pin  
low with an open-collector or low-capacitance, open-  
drain device can shut down all devices.  
ꢀ 100kHz Switching Frequency (MAX8548)  
ꢀ Pin-Compatible with the MAX1967  
ꢀ Thermal Shutdown  
The MAX8545/MAX8546 operate at 300kHz and the  
MAX8548 operates at 100kHz. The MAX8545/  
MAX8546/MAX8548 are compatible with low-cost alu-  
minum electrolytic capacitors. Input undervoltage lock-  
out prevents proper operation under power-sag  
operations to prevent external MOSFETs from overheat-  
ing. Internal soft-start is included to reduce inrush cur-  
rent. These devices are offered in space-saving 10-pin  
µMAX packages.  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
10 µMAX  
MAX8545EUB  
MAX8546EUB  
MAX8548EUB  
10 µMAX  
10 µMAX  
Applications  
Notebook Docking  
Station Supplies  
Cable Modems and  
Routers  
Typical Operating Circuit  
Set-Top Boxes  
Graphic Card and Video  
Supplies  
INPUT  
2.7V TO 28V  
Desktops and Desknotes  
V
CC  
VL  
Networking Power  
Supplies  
PCI Express Power  
Supplies  
Telecom Power Supplies  
OUTPUT  
0.8V TO  
V
IN  
BST  
DH  
0.9 x V  
IN  
UP TO 6A  
LX  
DL  
MAX8545  
MAX8546  
MAX8548  
GND  
COMP/  
EN  
Selector Guide  
OFF  
ON  
FB  
SWITCHING  
FREQUENCY  
CURRENT-LIMIT  
THRESHOLD  
PART  
MAX8545  
MAX8546  
MAX8548  
300kHz  
300kHz  
100kHz  
-320mV  
-165mV  
-320mV  
OPTIONAL  
Pin Configuration appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...18

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MAX8545EUB+T 替代型号

型号 品牌 替代类型 描述 数据表
MAX8545EUB MAXIM

完全替代

 Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8545EUB+ MAXIM

类似代替

 Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8545EUB-T MAXIM

功能相似

 Switching Controller, Voltage-mode, 360kHz Switching Freq-Max, BICMOS, PDSO10, MO-187CBA,

与MAX8545EUB+T相关器件

型号 品牌 获取价格 描述 数据表
MAX8545EUB-T MAXIM

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 		Switching Controller, Voltage-mode, 360kHz Switching Freq-Max, BICMOS, PDSO10, MO-187CBA,
MAX8546 MAXIM

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 		Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8546 ADI

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 		低成本、宽输入范围、降压型控制器，带有折返式限流
MAX8546EUB MAXIM

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 		PLASTIC ENCAPSULATED DEVICES
MAX8546EUB+ MAXIM

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 		Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8546EUB+T MAXIM

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 		Switching Controller, Voltage-mode, 360kHz Switching Freq-Max, BICMOS, PDSO10, MO-187C-BA,
MAX8546EVKIT MAXIM

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 		Evaluation Kit for the MAX8545/MAX8546/MAX8548
MAX8548 MAXIM

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 		Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8548 ADI

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 		低成本、宽输入范围、降压型控制器，带有折返式限流
MAX8548EUB MAXIM

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 		Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit

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