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TPS51275BRUKR

更新时间： 2024-02-07 15:17:14
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德州仪器 - TI 控制器
页数 文件大小 规格书
31页 1691K
描述
Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs

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TPS51275BRUKR 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：WQFN-20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.72其他特性：ADJUSTABLE OUTPUT MODE FROM 4.5 TO 5.5V AND 2.97 TO 3.63V
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 V
标称输入电压：12 VJESD-30 代码：S-PQCC-N20
JESD-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：125 °C
最低工作温度：-40 °C最大输出电流：20 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：BUCK最大切换频率：355 kHz
温度等级：AUTOMOTIVE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 mmBase Number Matches：1

TPS51275BRUKR 数据手册

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TPS51275, TPS51275B, TPS51275C  
www.ti.com  
SLUSB45B –JUNE 2012–REVISED MARCH 2013  
Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs  
1
FEATURES  
APPLICATIONS  
2
•
•
Input Voltage Range: 5 V to 24 V  
•
•
Notebook Computers  
Tablet Computers  
Output Voltages: 5 V and 3.3 V (Adjustable  
Range ±10%)  
DESCRIPTION  
•
•
•
•
Built-in, 100-mA, 5-V and 3.3-V LDOs  
Clock Output for Charge-Pump  
±1% Reference Accuracy  
The TPS51275, TPS51275B and TPS51275C are  
cost-effective, dual-synchronous buck controllers  
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  
TPS51275, TPS51275B and TPS51275C 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 V to 24 V and supports output  
voltages of 5.0 V and 3.3 V. The TPS51275,  
TPS51275B and TPS51275C are available in a 20-  
pin, 3 mm x 3 mm, QFN package and is specified  
from –40°C to 85°C.  
Adaptive On-Time D-CAP™ Mode Control  
Architecture with 300-kHz and 355-kHz  
Frequency Setting  
•
Auto-skip Light Load Operation (TPS51275,  
and TPS51275C)  
•
•
•
•
•
•
•
•
•
•
OOA Light Load Operation (TPS51275B)  
Internal 0.8-ms Voltage Servo Soft-Start  
Low-Side RDS(on) Current Sensing Scheme  
Built-In Output Discharge Function  
Separate Enable Input for Switchers  
Dedicated OC Setting Terminals  
Power Good Indicator  
OVP, UVP and OCP Protection  
Non-Latch UVLO and OTP Protection  
20-Pin, 3 mm x 3 mm, QFN (RUK)  
NEED SOME SPACE  
ORDERING INFORMATION(1)  
ORDERABLE  
DEVICE NUMBER  
ENABLE  
FUNCTION  
OUTPUT  
SUPPLY  
SKIP MODE  
ALWAYS On-LDO  
PACKAGE  
QUANTITY  
TPS51275RUKR  
TPS51275RUKT  
TPS51275BRUKR  
TPS51275BRUKT  
TPS51275CRUKR  
TPS51275CRUKT  
Tape and Reel  
Mini reel  
3000  
250  
Auto-skip  
OOA  
VREG3  
Tape and Reel  
Mini reel  
3000  
250  
PLASTIC Quad  
Flat Pack  
EN1 and EN2  
VREG3 and VREG5  
Tape and Reel  
Mini reel  
3000  
250  
Auto-skip  
(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 is a trademark 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 © 2012–2013, Texas Instruments Incorporated  
 
 
 
 
 
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TPS51275BRUKR 替代型号

型号 品牌 替代类型 描述 数据表
TPS51275BRUKT TI

完全替代

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

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