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TPS51225RUKR

更新时间： 2024-11-26 11:44:39
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德州仪器 - TI 控制器
页数 文件大小 规格书
31页 1291K
描述
Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs

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中文翻译

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TPS51225RUKR 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：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.69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：24 V
最小输入电压：5.5 V标称输入电压：12 V
JESD-30 代码：S-PQCC-N20JESD-609代码：e4
长度：3 mm湿度敏感等级：2
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：10 A最大输出电压：5.5 V
最小输出电压：4.5 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座面最大高度：0.8 mm
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：355 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：0.4 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

TPS51225RUKR 数据手册

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TPS51225, TPS51225B, TPS51225C  
www.ti.com  
SLUSAV0A –JANUARY 2012–REVISED JUNE 2012  
Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs  
Check for Samples: TPS51225, TPS51225B, TPS51225C  
1
FEATURES  
APPLICATIONS  
2
•
•
Input Voltage Range: 5.5 V to 24 V  
•
•
Notebook Computers  
Output Voltages: 5 V and 3.3 V (Adjustable  
Range ±10%)  
Netbook, Tablet Computers  
DESCRIPTION  
The TPS51225/B/C is  
•
•
•
•
Built-in, 100-mA, 5-V and 3.3-V LDOs  
Clock Output for Charge-Pump  
±1% Reference Accuracy  
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 260-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 efficiency. The TPS51225/B/C supports  
high efficiency, fast transient response and provides a  
combined power-good signal. Adaptive on-time, D-  
CAP™ control provides convenient and efficient  
operation. The device operates with supply input  
voltage ranging from 5.5 V to 24 V and supports  
Adaptive On-time D-CAP™ Mode Control  
Architecture with 300kHz/355kHz Frequency  
Setting  
•
•
•
•
Auto-skip Light Load Operation (TPS51225/C)  
OOA Light Load Operation (TPS51225B)  
Internal 0.8-ms Voltage Servo Soft-Start  
Low-Side RDS(on) Current Sensing Scheme with  
4500 ppm/°C Temperature Coefficient  
•
•
Built-in Output Discharge Function  
output voltages of 5.0  
V
and 3.3 V. The  
TPS51225/B/C is available in a 20-pin, 3 mm × 3  
mm, QFN package and is specified from –40°C to  
85°C.  
Separate Enable Input for Switchers  
(TPS51225/B/C)  
•
•
•
•
•
Dedicated OC Setting Terminals  
Power Good Indicator  
OVP/UVP/OCP Protection  
Non-latch UVLO/OTP Protection  
20-Pin, 3 mm × 3 mm, QFN (RUK)  
ORDERING INFORMATION(1)  
ORDERABLE  
DEVICE NUMBER  
ENABLE  
FUNCTION  
OUTPUT  
SKIP MODE  
ALWAYS ON-LDO  
PACKAGE  
QUANTITY  
SUPPLY  
Tape and Reel  
Mini reel  
TPS51225RUKR  
TPS51225RUKT  
TPS51225BRUKR  
TPS51225BRUKT  
TPS51225CRUKR  
TPS51225CRUKT  
3000  
250  
EN1/ EN2  
EN1/ EN2  
EN1/ EN2  
Auto-skip  
VREG3  
PLASTIC Quad  
Flat Pack  
(20 pin QFN)  
Tape and Reel  
Mini reel  
3000  
250  
OOA  
VREG3  
Tape and Reel  
Mini reel  
3000  
250  
Auto-skip  
VREG3 & VREG5  
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI  
website at www.ti.com.  
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-CAP, Out-of-Audio 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  
 
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TPS51225RUKR 替代型号

型号 品牌 替代类型 描述 数据表
TPS51225RUKT TI

完全替代

 Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs

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