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LM25085SD/NOPB PDF预览

LM25085SD/NOPB

更新时间: 2024-11-16 00:56:07
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
34页 1591K
描述
LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller

LM25085SD/NOPB 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVSON, SOLCC8,.11,20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.47模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE最大输入电压:42 V
最小输入电压:4.5 V标称输入电压:24 V
JESD-30 代码:S-PDSO-N8JESD-609代码:e3
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:10 A最大输出电压:42 V
最小输出电压:1.25 V封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC8,.11,20
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, 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子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:1000 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:NO LEAD
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 mm
Base Number Matches:1

LM25085SD/NOPB 数据手册

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LM25085, LM25085-Q1  
SNVS593J OCTOBER 2008REVISED NOVEMBER 2014  
LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller  
1 Features  
3 Description  
The LM25085 is a high efficiency PFET switching  
regulator controller that can be used to quickly and  
easily develop a small, efficient buck regulator for a  
wide range of applications. This high voltage  
controller contains a PFET gate driver and a high  
voltage bias regulator which operates over a wide  
4.5V to 42V input range. The constant on-time  
regulation principle requires no loop compensation,  
simplifies circuit implementation, and results in ultra-  
fast load transient response. The operating frequency  
remains nearly constant with line and load variations  
due to the inverse relationship between the input  
voltage and the on-time. The PFET architecture  
allows 100% duty cycle operation for a low dropout  
voltage. Either the RDS(ON) of the PFET or an external  
sense resistor can be used to sense current for over-  
current detection.  
1
LM25085-Q1 is an Automotive Grade product that  
is AEC-Q100 Grade 1 Qualified (-40°C to 125°C  
Operating Junction Temperature)  
Wide 4.5V to 42V Input Voltage Range  
Adjustable Current Limit Using RDS(ON) or a  
Current Sense Resistor  
Programmable Switching Frequency to 1MHz  
No Loop Compensation Required  
Ultra-Fast Transient Response  
Nearly Constant Operating Frequency with Line  
and Load Variations  
Adjustable Output Voltage from 1.25V  
Precision ±2% Feedback Reference  
Capable of 100% Duty Cycle Operation  
Internal Soft-Start Timer  
Device Information(1)  
Integrated High Voltage Bias Regulator  
Thermal Shutdown  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
3.00 mm x 3.00 mm  
3.00 mm x 3.00 mm  
3.00 mm x 3.00 mm  
3.00 mm x 3.00 mm  
LM25085-Q1  
HVSSOP (8)  
VSSOP (8)  
WSON (8)  
HVSSOP (8)  
2 Applications  
LM25085  
Automotive Infotainment  
Battery/Super Capacitor Chargers  
LED Drivers  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Simplified Schematic  
4.5V to 42V  
Input  
C
VCC  
LM25085  
VIN  
V
VCC  
ADJ  
IN  
C
ADJ  
C
IN  
GND  
R
T
R
ADJ  
L1  
PGATE  
ISEN  
Q1  
RT  
SHUTDOWN  
V
OUT  
C
OUT  
D1  
Cff  
R
FB2  
GND  
GND  
FB  
R
FB1  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 

LM25085SD/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM25085SDE/NOPB TI

完全替代

4.5-42V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller 8-WSON -40 to 125

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