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TPS54239EDDA PDF预览

TPS54239EDDA

更新时间: 2024-09-16 12:25:11
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
21页 1003K
描述
4.5V to 23V Input, 2-A Synchronous Step-Down SWIFT Converter With Eco-mode

TPS54239EDDA 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:HLSOP, SOP8,.25
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:2.29其他特性:ADJUSTABLE OUTPUT MODE FROM 0.76 TO 7 V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:23 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
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:85 °C最低工作温度:-40 °C
最大输出电流:4.6 A最大输出电压:7 V
最小输出电压:0.76 V封装主体材料:PLASTIC/EPOXY
封装代码:HLSOP封装等效代码:SOP8,.25
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子类别:Switching Regulator or Controllers
标称供电电压 (Vsup):12 V表面贴装:YES
切换器配置:BUCK最大切换频率:600 kHz
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
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 mmBase Number Matches:1

TPS54239EDDA 数据手册

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TPS54239E  
www.ti.com  
SLVSBT1 JANUARY 2013  
4.5V to 23V Input, 2-A Synchronous Step-Down SWIFT™ Converter With Eco-mode™  
Check for Samples: TPS54239E  
1
FEATURES  
DESCRIPTION  
The TPS54239E is an adaptive on-time D-CAP2™  
mode synchronous buck converter. The TPS54239E  
enables system designers to complete the suite of  
various end-equipment power bus regulators with a  
cost effective, low component count, low standby  
current solution. The main control loop for the  
TPS54239E uses the D-CAP2™ mode control that  
provides a fast transient response with no external  
compensation components. The adaptive on-time  
control supports seamless transition between PWM  
mode at higher load conditions and Eco-mode™  
operation at light loads. Eco-mode™ allows the  
TPS54239 to maintain high efficiency during lighter  
23  
D-CAP2™ Mode Enables Fast Transient  
Response  
Low Output Ripple and Allows Ceramic Output  
Capacitor  
Wide VIN Input Voltage Range: 4.5 V to 23 V  
Output Voltage Range: 0.76 V to 7.0 V  
Highly Efficient Integrated FETs Optimized  
for Lower Duty Cycle Applications  
– 140 m(High Side) and 70 m(Low Side)  
High Efficiency, less than 10 μA at shutdown  
High Initial Bandgap Reference Accuracy  
Adjustable Soft Start  
load conditions. The TPS54239E also has  
a
proprietary circuit that enables the device to adopt to  
both low equivalent series resistance (ESR) output  
capacitors, such as POSCAP or SP-CAP, and ultra-  
low ESR ceramic capacitors. The device operates  
from 4.5-V to 23-V VIN input. The output voltage can  
be programmed between 0.76 V and 7 V. The device  
also features an adjustable soft start time. The  
TPS54239E is available in the 8-pin DDA package,  
and designed to operate from –40°C to 85°C.  
Pre-Biased Soft Start  
600-kHz Switching Frequency (fSW  
)
Cycle By Cycle Over Current Limit  
Auto-Skip Eco-mode™ for High Efficiency at  
Light Load  
APPLICATIONS  
Wide Range of Applications for Low Voltage  
System  
Digital TV Power Supply  
High Definition Blu-ray Disc™ Players  
Networking Home Terminal  
Digital Set Top Box (STB)  
VIN  
Vout (50 mV/div)  
Iout (1 A/div)  
TPS54239EDDA  
8
7
6
5
1
2
3
4
VBST  
VIN  
SS  
EN  
EN  
VOUT  
SW  
VREG5  
GND  
VFB  
VOUT  
PwPd  
9
100 us/div  
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
3
D-CAP2, Eco-mode are trademarks of Texas Instruments.  
Blu-ray Disc is a trademark of Blu-ray Disc Association.  
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 © 2013, Texas Instruments Incorporated  

TPS54239EDDA 替代型号

型号 品牌 替代类型 描述 数据表
TPS54239EDDAR TI

完全替代

4.5V to 23V Input, 2-A Synchronous Step-Down SWIFT Converter With Eco-mode
TPS54239DDAR TI

类似代替

4.5V to 23V Input, 2-A Synchronous Step-Down SWIFT Converter
TPS54239DDA TI

类似代替

4.5V to 23V Input, 2-A Synchronous Step-Down SWIFT Converter

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