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LM20143QMHE/NOPB PDF预览

LM20143QMHE/NOPB

更新时间： 2024-11-12 11:12:51
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管输出元件稳压器
页数 文件大小 规格书
39页 1268K
描述
具有调频功能的汽车级 2.95V 至 5.5V、3A、电流模式同步降压稳压器 | PWP | 16 | -40 to 125

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LM20143QMHE/NOPB 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：HTSSOP,针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.66其他特性：OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 3.3V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：2.95 V标称输入电压：5 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：5.3 A最大输出电压：5 V
最小输出电压：0.8 V标称输出电压：2.7 V
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260座面最大高度：1.2 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：1500 kHz温度等级：AUTOMOTIVE
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：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

LM20143QMHE/NOPB 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
LM20143, LM20143-Q1  
SNVS528H –OCTOBER 2007–REVISED JANUARY 2016  
LM20143/LM20143-Q1 3-A PowerWise™ Adjustable Frequency Synchronous Buck  
Regulator  
1 Features  
3 Description  
The LM20143 devices are full featured PowerWise™  
adjustable frequency synchronous buck regulators  
capable of delivering up to 3 A of continuous output  
current. The current mode control loop can be  
compensated to be stable with virtually any type of  
output capacitor. For most cases, compensating the  
device only requires two external components,  
providing maximum flexibility and ease of use. The  
device is optimized to work over the input voltage  
range of 2.95 V to 5.5 V, making it suited for a wide  
variety of low voltage systems.  
1
•
Available in AEC-Q100 Temperature Grade 1  
Input Voltage Range: 2.95 V to 5.50 V  
Accurate Current Limit Minimizes Inductor Size  
97% Peak Efficiency  
•
•
•
•
•
Adjustable Output Voltage Down to 0.80 V  
Adjustable Switching Frequency (500 kHz to 1.5  
MHz)  
•
•
•
•
•
•
•
32-mΩ Integrated FET Switches  
Starts into Prebiased Loads  
The device features internal over voltage protection  
(OVP) and over current protection (OCP) circuits for  
increased system reliability. A precision enable pin  
and integrated UVLO allows the turn-on of the device  
to be tightly controlled and sequenced. Start-up  
inrush currents are limited by both an internally fixed  
and externally adjustable Soft-Start circuit. Fault  
detection and supply sequencing is possible with the  
integrated power good circuit.  
Output Voltage Tracking  
Peak Current Mode Control  
Adjustable Soft-Start with External Capacitor  
Precision Enable Pin with Hysteresis  
Integrated OVP, UVLO, Power Good and Thermal  
Shutdown  
2 Applications  
The frequency of this device can be adjusted from  
500 kHz to 1.5 MHz by connecting an external  
resistor from the RT pin to ground.  
•
•
•
Simple to Design, High Efficiency Point of Load  
Regulation from a 5-V or 3.3-V Bus  
High Performance DSPs, FPGAs, ASICs, and  
Microprocessors  
The LM20143 is designed to work well in multi-rail  
power supply architectures. The output voltage of the  
device can be configured to track a higher voltage rail  
using the SS/TRK pin. If the output of the LM20143 is  
pre-biased at startup it will not sink current to pull the  
output low until the internal soft-start ramp exceeds  
the voltage at the feedback pin.  
Broadband, Networking, and Optical  
Communications Infrastructure  
Device Information(1)  
PART NUMBER  
LM20143  
PACKAGE  
BODY SIZE (NOM)  
HTSSOP (16)  
4.40 mm × 5.00 mm  
LM20143-Q1  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Typical Application Circuit  
L
LM20143  
V
OUT  
SW  
FB  
V
IN  
PVIN  
EN  
R
R
FB1  
C
IN  
R
C
F
C
OUT  
AVIN  
RT  
FB2  
PGOOD  
F
R
T
VCC  
COMP  
C
VCC  
SS/TRK  
PGND AGND  
R
C1  
C
SS  
C
C1  
(optional)  
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.  
 
 
 
 
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LM20143QMHE/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM20143QMH/NOPB TI

完全替代

 具有调频功能的汽车级 2.95V 至 5.5V、3A、电流模式同步降压稳压器 | PWP

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