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MAX1956ETI+T

更新时间: 2024-10-03 13:00:35
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
22页 618K
描述
Dual Switching Controller, Voltage-mode, 0.25A, 660kHz Switching Freq-Max, BICMOS, PQCC28, 5 X 5 MM, 0.8 MM HEIGHT, EXPOSED PAD, TQFN-28

MAX1956ETI+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:QFN
包装说明:VQCCN,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01Factory Lead Time:6 weeks
风险等级:5.22模拟集成电路 - 其他类型:DUAL 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:1.6 V
标称输入电压:3.3 VJESD-30 代码:S-PQCC-N28
JESD-609代码:e3长度:5 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:0.25 A
封装主体材料:PLASTIC/EPOXY封装代码:VQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:660 kHz
技术:BICMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:5 mm
Base Number Matches:1

MAX1956ETI+T 数据手册

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19-2623; Rev 0; 1/03  
1.6V to 5.5V Input, 0.5% Accurate, Dual  
180° Out-of-Phase Step-Down Controllers  
General Description  
Features  
o Operates from a 1.6V to 5.5V Supply (MAX1956)  
o 0.5% Output Accuracy  
The MAX1955/MAX1956 are dual-output, fixed-frequency,  
voltage-mode, pulse-width modulated (PWM) step-down  
controllers with 0.5% output accuracy. Each controller  
switches at a constant 600kHz and is 180° out-of-phase  
with the other controller, reducing input ripple current  
and the number of input capacitors.  
o 0.8V to 0.9V Output Range  
IN  
o Up to 25A per Phase Output Current  
o On-Chip Boost Regulator Provides 5V Gate Drive  
o Up to 93% Efficiency  
An on-chip bias supply generates a 5V gate drive to  
deliver up to 25A output current per phase with low-cost  
N-channel MOSFETs at up to 93% efficiency. Lossless  
adjustable current limit eliminates expensive current-  
sense resistors and improves efficiency. Foldback current  
limit reduces power dissipation during short-circuit  
conditions and handles transient overloads better than  
controllers using hiccup-mode short-circuit protection.  
o 180° Out-of-Phase Operation  
o ±±% Voltage Margining  
o Lossless, Foldback Current Limit  
o Selectable Voltage Sequencing  
o Synchronizable to External Clock  
o Digital Soft-Start and Soft-Stop  
o Small 28-Pin, 5mm 5mm Thin QFN Package  
Output voltage margining shifts output voltage by  
±±% from the nominal value to simplify system test.  
Outputs also can be powered up and down in select-  
able sequences to meet core and logic supply-rail  
requirements.  
Ordering Information  
The MAX1955/MAX1956 are available in a 28-lead thin  
QFN package with exposed pad.  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
28 Thin QFN-EP*  
28 Thin QFN-EP*  
MAX1955ETI  
Applications  
Base Stations  
Telecom and Network Equipment  
Servers  
MAX1956ETI  
*EP = Exposed pad.  
Pin Configuration appears at end of data sheet.  
DSP, ASIC, µP, and FPGA Supplies  
Typical Operating Circuit  
INPUT  
1.6V TO 5.5V  
VDD  
IN  
V
DD  
LXB  
BST2  
OUTPUT 2  
0.8V TO 0.9V  
IN  
UP TO 25A  
BST1  
DH2  
LX2  
OUTPUT 1  
0.8V TO 0.9V  
UP TO 25A  
DH1  
LX1  
IN  
MAX1956  
DL2  
FB2  
DL1  
PGND  
COMP2  
REF  
FB1  
COMP1  
SEQ  
GND  
ILIM1  
SYNCHRONIZATION  
CLOCK  
VDD  
SYNC  
EN  
ILIM2  
AV  
DD  
ON/OFF  
VOLTAGE  
MARGINING  
________________________________________________________________ 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.  

MAX1956ETI+T 替代型号

型号 品牌 替代类型 描述 数据表
MAX1956ETI MAXIM

完全替代

1.6V to 5.5V Input, 0.5% Accurate, Dual 180°
MAX1956ETI+ MAXIM

类似代替

Dual Switching Controller, Voltage-mode, 0.25A, 660kHz Switching Freq-Max, BICMOS, PQCC28,

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