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TPS51125ARGER

更新时间： 2024-02-20 08:18:42
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德州仪器 - TI 控制器
页数 文件大小 规格书
37页 1165K
描述
Dual-Synchronous, Step-Down Controller with Out-of-Audio™ Operation and 100-mA LDOs for Notebook System Power

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TPS51125ARGER 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：QFN
包装说明：HVQCCN,针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.81其他特性：ALSO OPERATES AT 5V, ALSO OPERATES IN ADJUSTABLE MODE FROM 2V TO 5.5V
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制技术：PULSE WIDTH MODULATION
最大输入电压：28 V最小输入电压：5.5 V
标称输入电压：12 VJESD-30 代码：S-PQCC-N24
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：24最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.0015 A
最大输出电压：5.5 V最小输出电压：2 V
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峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：460 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：0.5 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 mm
Base Number Matches：1

TPS51125ARGER 数据手册

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TPS51125A  
www.ti.com  
SLUS976E –SEPTEMBER 2009–REVISED MARCH 2012  
Dual-Synchronous, Step-Down Controller with Out-of-Audio™ Operation  
and 100-mA LDOs for Notebook System Power  
Check for Samples: TPS51125A  
1
FEATURES  
APPLICATIONS  
2
•
•
•
•
•
Wide Input Voltage Range: 5.5 V to 28 V  
Output Voltage Range: 2 V to 5.5 V  
Built-in 100-mA 5-V/3.3-V LDO with Switches  
Built-in 1% 2-V Reference Output  
•
•
•
Notebook Computers  
I/O Supplies  
System Power Supplies  
DESCRIPTION  
With/Without Out-of-Audio™ Mode Selectable  
Light Load and PWM only Operation  
The TPS51125A is a cost effective, dual-synchronous  
buck controller targeted for notebook system power  
supply solutions. It provides 5-V and 3.3-V LDOs and  
requires few external components. The 270-kHz  
VCLK output can be used to drive an external charge  
pump, generating gate drive voltage for the load  
switches without reducing the main converter’s  
efficiency. The TPS51125A supports high efficiency,  
fast transient response and provides a combined  
power-good signal. Out-of-Audio™ mode light-load  
operation enables low acoustic noise at much higher  
efficiency than conventional forced PWM operation.  
Adaptive on-time D-CAP™ control provides  
convenient and efficient operation. The part operates  
with supply input voltages ranging from 5.5 V to 28 V  
and supports output voltages from 2 V to 5.5 V. The  
TPS51125A is available in a 24-pin QFN package  
and is specified from -40°C to 85°C ambient  
temperature range.  
•
•
Internal 1.6-ms Voltage Servo Softstart  
Adaptive On-Time Control Architecture with  
Four Selectable Frequency Setting  
•
•
•
•
•
•
4500 ppm/°C RDS(on) Current Sensing  
Built-In Output Discharge  
Power Good Output  
Built-in OVP/UVP/OCP  
Thermal Shutdown (Non-latch)  
QFN24 (RGE)  
Table 1. Differences between the TPS51125 and TPS51125A  
TPS51125  
TPS51125A  
VREG5: at least 33 µF  
VREG5: 10 µF or larger (X5R or X7R)  
VREG3: at most 10 µF  
(1 µF acceptable at no load)  
VREG3: 10 µF or larger (X5R or X7R)  
(1 µF acceptable at no load)  
LDO Output Capacitance Requirement  
VREF: 0.22 µF to 1 µF  
VREF: 0.22 µF to 1 µF (X5R or X7R)  
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
Out-of-Audio, D-CAP 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 © 2009–2012, Texas Instruments Incorporated  
 
 
 
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TPS51125ARGER 替代型号

型号 品牌 替代类型 描述 数据表
TPS51125ARGET TI

完全替代

 Dual-Synchronous, Step-Down Controller with O

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