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LM5143QRWGTQ1 PDF预览

LM5143QRWGTQ1

更新时间: 2024-11-24 02:58:31
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
53页 5131K
描述
3.5-V to 65-V Low IQ, Dual Synchronous Buck DC/DC Controller

LM5143QRWGTQ1 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:HVQCCN,
Reach Compliance Code:compliant风险等级:5.76
其他特性:ALSO AVAILABLE VOUT= 5V; ADJ O/P VOLTAGE= 0.6V TO 55V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:65 V最小输入电压:3.5 V
标称输入电压:12 VJESD-30 代码:S-PQCC-N40
长度:6 mm湿度敏感等级:3
功能数量:1端子数量:40
最高工作温度:150 °C最低工作温度:-40 °C
标称输出电压:3.3 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, HEAT SINK/SLUG, VERY THIN PROFILE筛选级别:AEC-Q100
座面最大高度:0.9 mm表面贴装:YES
切换器配置:BUCK最大切换频率:2500 kHz
温度等级:AUTOMOTIVE端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:6 mmBase Number Matches:1

LM5143QRWGTQ1 数据手册

 浏览型号LM5143QRWGTQ1的Datasheet PDF文件第2页浏览型号LM5143QRWGTQ1的Datasheet PDF文件第3页浏览型号LM5143QRWGTQ1的Datasheet PDF文件第4页浏览型号LM5143QRWGTQ1的Datasheet PDF文件第5页浏览型号LM5143QRWGTQ1的Datasheet PDF文件第6页浏览型号LM5143QRWGTQ1的Datasheet PDF文件第7页 
LM25148-Q1  
SNVSC03 – JUNE 2021  
LM25148-Q1 42-V Automotive Synchronous Buck DC/DC Controller with Ultra-Low IQ  
and Dual Random Spread Spectrum  
1 Features  
2 Applications  
AEC-Q100 qualified for automotive applications:  
– Device temperature grade 1: –40°C to +125°C  
ambient operating temperature  
Automotive electronic systems  
Advanced driver assistance systems (ADAS)  
Infotainment and clusters  
Integrated EMI mitigation  
3 Description  
– Selectable dual random spread spectrum  
(DRSS) feature for enhanced EMI performance  
across low and high-frequency bands  
– Optimized for CISPR 25 Class 5 requirements  
Versatile synchronous buck DC/DC controller  
– Wide input voltage range of 3.5 V to 42 V  
– 1% accurate, fixed 3.3-V, 5-V, 12-V, or  
adjustable outputs from 0.8 V to 36 V  
The LM25148-Q1 is a 42-V, ultra-low IQ synchronous  
buck DC/DC controller for high-current, single-output  
applications. The controller uses a peak-current-mode  
control architecture for easy loop compensation,  
fast transient response, and excellent load and  
line regulation. The LM25148-Q1 can be set up in  
interleaved mode (paralleled output) with accurate  
current sharing for high-current applications. It can  
operate at input voltages as low as 3.5 V, at nearly  
100% duty cycle if needed.  
– 150°C maximum junction temperature  
– Lossless DCR or shunt current sensing  
– Shutdown mode current: 2.2 µA  
– No-load standby current: 9 µA  
The LM25148-Q1 has a unique EMI reduction  
feature known as Dual Random Spread Spectrum  
(DRSS). Combining low-frequency triangular and  
high-frequency randomized modulations mitigates  
EMI across lower and higher radio-frequency bands,  
respectively. This hybrid technique aligns with  
the multiple resolution bandwidth (RBW) settings  
specified in industry-standard EMC tests.  
Switching frequency from 100 kHz to 2.2 MHz  
– SYNC in and SYNC out capability  
– Selectable PFM or FPWM modes  
Inherent protection features for robust design  
– Internal hiccup mode overcurrent protection  
– ENABLE and PGOOD functions  
– VCC, VDDA, and gate-drive UVLO protection  
– Internal or external loop compensation  
– Thermal shutdown protection with hysteresis  
Create a custom design using the LM25148-Q1  
with WEBENCH® Power Designer  
Device Information  
PART NUMBER  
PACKAGE(1)  
BODY SIZE (NOM)  
LM25148-Q1  
VQFN (24)  
3.5 mm × 5.5 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet  
VIN = 3.5 V...42 V  
CIN  
CVCC  
2.2  
F
VCC  
VIN  
EN  
CBOOT  
HO  
CBOOT  
0.1  
VOUT = 5 V  
IOUT = 8 A  
F
Q1  
Q2  
RS  
CNFG  
LO  
5 m  
PGOOD  
0.56  
H
CO  
SW  
4 47  
F
VDDA  
LO  
LM25148-Q1  
PGND  
RFB  
PFM/SYNCIN  
FB  
24.9 k  
CS  
VOUT  
EXTCOMP  
* Tie to GND  
if not used  
VCCX  
RT  
VDDA  
AGND  
RT  
CVDDA  
0.1  
* VOUT tracks VIN if VIN < 5.2 V  
F
9.52 k  
Typical Application Schematic  
CISPR 25 EMI Performance, 150 kHz to 30 MHz  
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. ADVANCE INFORMATION for preproduction products; subject to change  
without notice.  
 
 
 

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