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TPS54331DDAR PDF预览

TPS54331DDAR

更新时间: 2024-11-06 13:01:07
品牌 Logo 应用领域
德州仪器 - TI 转换器输入元件
页数 文件大小 规格书
24页 880K
描述
3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode 8-SO PowerPAD -40 to 150

TPS54331DDAR 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:SOIC
包装说明:HLSOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.67
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:28 V
最小输入电压:3.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e4
长度:4.9 mm湿度敏感等级:2
功能数量:1端子数量:8
最高工作温度:150 °C最低工作温度:-40 °C
最大输出电流:2 A最大输出电压:25 V
最小输出电压:0.8 V封装主体材料:PLASTIC/EPOXY
封装代码:HLSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.7 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:570 kHz温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

TPS54331DDAR 数据手册

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TPS54331  
www.ti.com ...................................................................................................................................................... SLVS839BJULY 2008REVISED OCTOBER 2008  
3A, 28V INPUT, STEP DOWN SWIFT™ DC/DC CONVERTER WITH ECO-MODE™  
1
FEATURES  
DESCRIPTION  
2
3.5V to 28V Input Voltage Range  
Adjustable Output Voltage Down to 0.8V  
The TPS54331 is a 28-V, 3-A non-synchronous buck  
converter that integrates a low Rds(on) high side  
MOSFET. To increase efficiency at light loads, a  
pulse skipping Eco-mode™ feature is automatically  
activated. Furthermore, the 1 µA shutdown supply  
current allows the device to be used in battery  
powered applications. Current mode control with  
internal slope compensation simplifies the external  
compensation calculations and reduces component  
count while allowing the use of ceramic output  
capacitors. A resistor divider programs the hysteresis  
of the input under-voltage lockout. An overvoltage  
transient protection circuit limits voltage overshoots  
during startup and transient conditions. A cycle by  
cycle current limit scheme, frequency fold back and  
thermal shutdown protect the device and the load in  
the event of an overload condition. The TPS54331 is  
available in an 8-pin SOIC package that has been  
internally optimized to improve thermal performance.  
Integrated 80 mHigh Side MOSFET Supports  
up to 3A Continuous Output Current  
High Efficiency at Light Loads with a Pulse  
Skipping Eco-mode™  
Fixed 570kHz Switching Frequency  
Typical 1µA Shutdown Quiescent Current  
Adjustable Slow Start Limits Inrush Currents  
Programmable UVLO Threshold  
Overvoltage Transient Protection  
Cycle by Cycle Current Limit, Frequency Fold  
Back and Thermal Shutdown Protection  
Available in Easy-to-Use SOIC8 Package  
Supported by SwitcherPro™ Software Tool  
(http://focus.ti.com/docs/toolsw/folders/print/s  
witcherpro.html)  
For SWIFT™ Documentation, See the TI  
Website at www.ti.com/swift  
APPLICATIONS  
Consumer Applications such as Set-Top  
Boxes, CPE Equipment, LCD Displays,  
Peripherals, and Battery Chargers  
Industrial and Car Audio Power Supplies  
5V, 12V and 24V Distributed Power Systems  
SIMPLIFIED SCHEMATIC  
EFFICIENCY  
100  
90  
Ren1  
EN  
VIN  
CI  
VIN  
80  
Ren2  
V
= 12 V  
I
70  
60  
TPS54331  
V
= 18 V  
I
CBOOT  
V
= 24 V  
I
BOOT  
PH  
LO  
V = 28 V  
I
50  
40  
V
= 5 V  
VOUT  
I
SS  
CO  
30  
20  
10  
0
D1  
RO1  
COMP  
C1  
R3  
CSS  
V
1
= 3.3 V  
O
C2  
VSENSE  
GND  
0.01  
0.1  
10  
RO2  
I
- Load Current - A  
L
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
SWIFT, Eco-mode, SwitcherPro are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008, Texas Instruments Incorporated  

TPS54331DDAR 替代型号

型号 品牌 替代类型 描述 数据表
TPS54331GDR TI

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具有 Eco-mode 的 3.5V 至 28V 输入、3A、570kHz 降压转换器 |
TPS54331QDRQ1 TI

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3-A, 28-V INPUT, STEP-DOWN SWIFT™ DC/DC CON
TPS54331DDA TI

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3A, 28V INPUT, STEP DOWN SWIFT™ DC/DC CONVE

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