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TPS542951RSAR PDF预览

TPS542951RSAR

更新时间: 2024-11-09 11:07:03
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器软启动电源电路转换器开关式稳压器或控制器
页数 文件大小 规格书
23页 900K
描述
4.5V 至 18V 输入、2A/3A 双路同步降压转换器,可调节软启动 | RSA | 16 | -40 to 85

TPS542951RSAR 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:HVQCCN, LCC16,.16SQ,25
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.69
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.76 TO 7V模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:18 V最小输入电压:4.5 V
标称输入电压:12 VJESD-30 代码:S-PQCC-N16
JESD-609代码:e4长度:4 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:3 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:HVQCCN
封装等效代码:LCC16,.16SQ,25封装形状:SQUARE
封装形式:CHIP CARRIER, 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:1 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):2 mA
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:700 kHz
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:NO LEAD端子节距:0.65 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4 mmBase Number Matches:1

TPS542951RSAR 数据手册

 浏览型号TPS542951RSAR的Datasheet PDF文件第2页浏览型号TPS542951RSAR的Datasheet PDF文件第3页浏览型号TPS542951RSAR的Datasheet PDF文件第4页浏览型号TPS542951RSAR的Datasheet PDF文件第5页浏览型号TPS542951RSAR的Datasheet PDF文件第6页浏览型号TPS542951RSAR的Datasheet PDF文件第7页 
TPS542951  
www.ti.com  
SLVSBI4 JULY 2012  
2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET  
Check for Samples: TPS542951  
1
FEATURES  
APPLICATIONS  
2
D-CAP2™ Control Mode  
Point-of-Load Regulation in Low Power  
Systems for Wide Range of Applications  
Fast Transient Response  
Digital TV Power Supply  
Networking Home Terminal  
Digital Set Top Box (STB)  
DVD Player/Recorder  
No External Parts Required For Loop  
Compensation  
Compatible with Ceramic Output  
Capacitors  
Wide Input Voltage Range : 4.5 V to 18 V  
Output Voltage Range : 0.76V to 7.0V  
Gaming Consoles and Other  
DESCRIPTION  
Highly Efficient Integrated FETs Optimized for  
Low Duty Cycle Applications  
The TPS542951 is a dual, adaptive on-time D-  
CAP2™ mode synchronous buck converter. The  
TPS542951 enables system designers to complete  
the suite of various end equipment’s power bus  
regulators with a cost effective, low component count,  
and low standby current solution. The main control  
loops of the TPS542951 use the D-CAP2™ mode  
control which provides a very 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 TPS542951 to maintain high efficiency  
during lighter load conditions. The TPS542951 is able  
to adapt to both low equivalent series resistance  
(ESR) output capacitors such as POSCAP or SP-  
CAP, and ultra-low ESR, ceramic capacitors. The  
device provides convenient and efficient operation  
with input voltages from 4.5V to 18V.  
150 m(High Side) and 100 m(Low Side)  
High Initial Reference Accuracy  
Supports Constant 2 A CH1 and 3 A CH2 Load  
Current  
Low-Side rDS(on) Loss-Less Current Sensing  
Adjustable Soft Start  
Non-Sinking Pre-Biased Soft Start  
700 kHz Switching Frequency  
Cycle-by-Cycle Over-Current Limit Control  
OCL/UVLO/TSD Protections  
Hiccup Timer for Overload Protection  
Adaptive Gate Drivers with Integrated Boost  
PMOS Switch  
OCP Constant Due To Thermally Compensated  
rDS(on) with 4000ppm/  
The TPS542951 is available in a 4.4mm×5.0mm 16  
pin TSSOP (PWP) package, and is specified for an  
ambient temperature range from –40°C to 85°C.  
16-Pin HTSSOP  
Auto-Skip Eco-mode™for High Efficiency at  
Light Load  
Input Voltage  
V
2 = 1.5 V (50  
O
1
VIN2  
VIN1  
16  
15  
2
3
VBST1  
VBST2  
C12  
C11  
VO1  
C32  
C31  
L12  
L11  
VO2  
SW2 14  
SW1  
C22  
C21  
4
5
PGND1  
EN1  
PGND213  
EN2 12  
TPS542951  
HTSSOP16  
Iout (2 A/div)  
PGND  
PGND  
SS1  
6
SS2 11  
(PowerPAD)  
R11  
R21  
SGND  
SGND  
R12  
R22  
VFB1  
GND  
10  
VFB2  
7
8
C4  
9
VREG5  
PGND  
SGND  
SGND  
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
D-CAP2, Eco-mode, Eco-Mode 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 © 2012, Texas Instruments Incorporated  

TPS542951RSAR 替代型号

型号 品牌 替代类型 描述 数据表
TPS542951RSAT TI

完全替代

4.5V 至 18V 输入、2A/3A 双路同步降压转换器,可调节软启动 | RSA |
TPS542941PWPR TI

类似代替

2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET
TPS542941PWP TI

类似代替

2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET

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