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LX2750CLQ PDF预览

LX2750CLQ

更新时间: 2024-11-26 19:58:43
品牌 Logo 应用领域
美高森美 - MICROSEMI 开关
页数 文件大小 规格书
11页 388K
描述
Switching Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQCC16, 3 X 3 MM, ROHS COMPLIANT, PLASTIC, MLPQ-10

LX2750CLQ 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:HVQCCN,针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.22
其他特性:ALSO HAS CONTROL TECHNIQUE OF PFM; ALSO OPERATES IN ADJUSTABLE DOWN TO 0.8V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:16 V最小输入电压:10 V
标称输入电压:12 VJESD-30 代码:S-PQCC-N16
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
标称输出电压:5 V封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER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:2000 kHz温度等级:COMMERCIAL
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:40
宽度:3 mmBase Number Matches:1

LX2750CLQ 数据手册

 浏览型号LX2750CLQ的Datasheet PDF文件第2页浏览型号LX2750CLQ的Datasheet PDF文件第3页浏览型号LX2750CLQ的Datasheet PDF文件第4页浏览型号LX2750CLQ的Datasheet PDF文件第5页浏览型号LX2750CLQ的Datasheet PDF文件第6页浏览型号LX2750CLQ的Datasheet PDF文件第7页 
LX2750  
SINGLE INPUT SUPPLY PWM CONTROLLER WITH LDO  
CONTROLLER  
PRODUCTION DATA SHEET  
Pb Free Product  
FEATURES  
DESCRIPTION  
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Single Input 12V Bus Voltage  
The LX2750 controller IC is a compact synchronous  
Buck controller IC with 16 lead MLPQ package de-  
signed for step-down DC to DC converter applications.  
Selectable feedforward voltage mode control or con-  
stant on time control provides fast dynamic response.  
Selectable diode emulation mode greatly improves the  
light load efficiency. The LX2750 controller is optimized  
to convert single supply 12V bus voltage to as low as  
0.8V output voltage. An internal regulator converts bus  
voltage to 5V, which provides voltage supply to inter-  
nal logic and driver circuit. The LX2750 employs pro-  
grammable loss-less current limiting by sensing the  
Rdson of synchronous MOSFET followed by hiccup  
feature. Feedback under voltage also triggers hiccup.  
Internal UVLO keeps the controller off until the bus  
supply voltage exceeds 9V where internal digital soft  
starts get initiated to ramp up output. The LX2750 em-  
ploys NMOS LDO controller. Other features include:  
5V gate drive for HDRV signal, 12V gate drive for LDRV  
signal, programmable frequency, adaptive deadband  
control.  
Excellent Dynamic Response with Selectable  
Feedforward Voltage Mode Control or Constant On  
Time Control  
Diode Emulation Mode Available  
Programmable Switching Frequency Up to 2MHz  
Internal Digital Soft Start Function  
Programmable Over Current Protection Triggers  
Hiccup  
NMOS LDO Controller Available  
FB UVLO Followed by Hiccup Feature in Both  
Controllers  
5V High Side Driver and 12 V Low Side Driver  
Pb-free and RoHS Compliant  
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APPLICATIONS  
Graphic Card on Board Converters  
On Board DC to DC such as  
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12V to 3.3V, 2.5V or 1.8V  
Set Top Box and LCD Display  
ASIC Power Supplies  
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TYPICAL APPLICATION  
VIN1  
+12V  
7
15  
VIN  
BST  
14  
13  
10  
HDRV  
VCC  
VOUT1  
+1.8V@8A  
SW  
12  
8
PGOOD  
MODE  
Connected to 5VREG Voltage mode  
Connected to GND Constant on time mode  
11  
2
LDRV  
FB  
Connected to 5VREG synchronous mode  
Connected to GND Diode emulation mode  
9
FCCM  
RT  
16  
1
COMP  
6
5
VREF_OC  
REFIN  
3
4
LDO_DRV  
LDO_FB  
VOUT2  
+1.1V  
GPIO  
17  
GND(PAD)  
Figure1 - Typical application of LX2750  
ORDERING INFORMATION  
Device  
LX2750CLQ  
Temperature  
0 to 70o C  
Package  
3X3 MLPQ-16L  
Frequency  
Pb-Free  
Yes  
200kHz to 2MHz  
Note: Available in Tape & Reel. Append the letters "TR" to the part number. (i.e. LX2750CLQ-TR)  
Rev. 1.0a  
07/14/10  
Microsemi  
Analog Mixed Signal Group  
1
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  

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