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MAX1901EAI+T

更新时间： 2024-11-27 19:01:39
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关光电二极管
页数 文件大小 规格书
33页 648K
描述
Dual Switching Controller, Current-mode, 0.2A, 550kHz Switching Freq-Max, BICMOS, PDSO28, 5.30 MM, MO-150, SSOP-28

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MAX1901EAI+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：SSOP
包装说明：SSOP, SSOP28,.3针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.17
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：30 V
最小输入电压：4.2 V标称输入电压：15 V
JESD-30 代码：R-PDSO-G28JESD-609代码：e3
长度：10.2 mm湿度敏感等级：1
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.2 A封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP28,.3
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.99 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：550 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：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：5.29 mmBase Number Matches：1

MAX1901EAI+T 数据手册

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19-2224; Rev 3; 12/03  
500kHz Multi-Output, Low-Noise Power-Supply  
Controllers for Notebook Computers  
General Description  
Features  
The MAX1901/MAX1902/MAX1904 are buck-topology,  
step-down, switch-mode, power-supply controllers that  
generate logic-supply voltages in battery-powered sys-  
tems. These high-performance, dual/triple-output devices  
include on-board power-up sequencing, power-good sig-  
naling with delay, digital soft-start, secondary winding  
control, low dropout circuitry, internal frequency-compen-  
sation networks, and automatic bootstrapping.  
o 97% Efficiency  
o 4.2V to 30V Input Range  
o 2.5V to 5.5V Dual Adjustable Outputs  
o Selectable 3.3V and 5V Fixed or Adjustable  
Outputs (Dual Mode™)  
o 12V Linear Regulator  
o Adjustable Secondary Feedback  
(MAX1901/MAX1904)  
Up to 97% efficiency is achieved through synchronous  
rectification and Maxim’s proprietary Idle Mode™ control  
scheme. Efficiency is greater than 80% over a 1000:1  
load-current range, which extends battery life in system  
suspend or standby mode. Excellent dynamic response  
corrects output load transients within five clock cycles.  
Strong 1A on-board gate drivers ensure fast external N-  
channel MOSFET switching.  
o 5V/50mA Linear Regulator Output  
o Precision 2.5V Reference Output  
o Programmable Power-Up Sequencing  
o Power-Good (RESET) Output  
o Output Overvoltage Protection  
(MAX1901/MAX1902)  
o Output Undervoltage Shutdown  
(MAX1901/MAX1902)  
These devices feature a logic-controlled and synchroniz-  
able, fixed-frequency, pulse-width modulation (PWM)  
operating mode. This reduces noise and RF interference  
in sensitive mobile communications and pen-entry appli-  
cations. Asserting the SKIP pin enables fixed-frequency  
mode, for lowest noise under all load conditions.  
o 333kHz/500kHz Low-Noise, Fixed-Frequency  
Operation  
o Low-Dropout, 98% Duty-Factor Operation  
o 2.5mW Typical Quiescent Power (12V input, both  
SMPSs on)  
o 4µA Typical Shutdown Current  
The MAX1901/MAX1902/MAX1904 include two PWM reg-  
ulators, adjustable from 2.5V to 5.5V with fixed 5.0V and  
3.3V modes. All these devices include secondary feed-  
back regulation, and the MAX1902 contains a 12V/120mA  
linear regulator. The MAX1901/MAX1904 include a sec-  
ondary feedback input (SECFB), plus a control pin  
(STEER) that selects which PWM (3.3V or 5V) receives the  
secondary feedback signal. SECFB provides a method  
for adjusting the secondary winding voltage regulation  
point with an external resistor divider, and is intended to  
aid in creating auxiliary voltages other than fixed 12V.  
Ordering Information  
PART  
TEMP RANGE  
-40 C to +85 C  
-40 C to +85 C  
-40 C to +85 C  
-40 C to +85 C  
-40 C to +85 C  
-40 C to +85 C  
PIN-PACKAGE  
28 SSOP  
MAX1901EAI  
MAX1901ETJ  
MAX1902EAI  
MAX1902ETJ  
MAX1904EAI  
MAX1904ETJ  
32 Thin QFN 5mm x 5mm  
28 SSOP  
32 Thin QFN 5mm x 5mm  
28 SSOP  
32 Thin QFN 5mm x 5mm  
The MAX1901/MAX1902 contain internal output overvolt-  
age and undervoltage protection features.  
Functional Diagram  
________________________Applications  
INPUT  
Notebook and Subnotebook Computers  
12V  
5V (RTC)  
PDAs and Mobile Communicators  
5V  
LINEAR  
12V  
LINEAR  
Desktop CPU Local DC-DC Converters  
3.3V  
5V  
3.3V  
SMPS  
5V  
SMPS  
Idle Mode is a trademark of Maxim Integrated Products, Inc.  
Dual Mode is a trademark of Maxim Integrated Products, Inc.  
POWER-UP  
SEQUENCE  
POWER-  
GOOD  
ON/OFF  
RESET  
Pin Configurations appear 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...33

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与MAX1901EAI+T相关器件

型号 品牌 获取价格 描述 数据表
MAX1901ETJ MAXIM

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 		500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers
MAX1901ETJ+ MAXIM

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 		Dual Switching Controller, Current-mode, 0.2A, 550kHz Switching Freq-Max, BICMOS, 5 X 5 MM
MAX1901ETJ+T MAXIM

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 		Dual Switching Controller, Current-mode, 0.2A, 550kHz Switching Freq-Max, BICMOS, 5 X 5 MM
MAX1901ETJ-T ROCHESTER

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 		0.2A DUAL SWITCHING CONTROLLER, 550kHz SWITCHING FREQ-MAX, QCC32, 5 X 5 MM, 0.80 MM, MO-22
MAX1901ETJ-T MAXIM

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 		Dual Switching Controller, Current-mode, 0.2A, 550kHz Switching Freq-Max, BICMOS, 5 X 5 MM
MAX1901-MAX1904 MAXIM

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 		500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers
MAX1902 MAXIM

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 		500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers
MAX1902EAI MAXIM

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 		500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers
MAX1902EAI ROCHESTER

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 		0.2A DUAL SWITCHING CONTROLLER, 550kHz SWITCHING FREQ-MAX, PDSO28, 5.30 MM, MO-150, SSOP-2
MAX1902EAI+ MAXIM

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 		Dual Switching Controller, Current-mode, 0.2A, 550kHz Switching Freq-Max, BICMOS, PDSO28,

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