Datasheet > TPS51275

TPS51275

更新时间： 2024-02-20 01:39:36

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
28页	1240K
描述
Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs

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技术参数
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TPS51275 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：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	8 weeks
风险等级：	1.71	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 V	JESD-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：	85 °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：	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

TPS51275 数据手册

TPS51275, TPS51275C

www.ti.com

SLUSB45 –JUNE 2012

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

FEATURES

APPLICATIONS

•

Input Voltage Range: 5 V to 24 V

•

Notebook Computers

Tablet Computers

Output Voltages: 5 V and 3.3 V (Adjustable

Range ±10%)

DESCRIPTION

The TPS51275/C is

•

Built-in, 100-mA, 5-V and 3.3-V LDOs

Clock Output for Charge-Pump

±1% Reference Accuracy

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 TPS51275/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 V to 24 V and supports output

voltages of 5.0 V and 3.3 V. The TPS51275/C is

available in a 20-pin, 3 mm × 3 mm, QFN package

and is specified from –40°C to 85°C.

Adaptive On-time D-CAP™ Mode Control

Architecture with 300kHz/355kHz Frequency

Setting

•

Auto-skip Light Load Operation

Internal 0.8-ms Voltage Servo Soft-Start

Low-Side R_DS(on)Current Sensing Scheme with

4500 ppm/°C Temperature Coefficient

•

Built-in Output Discharge Function

Separate Enable Input for Switchers

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

ALWAYS ON-LDO

PACKAGE

OUTPUT SUPPLY

QUANTITY

TPS51275RUKR

TPS51275RUKT

TPS51275CRUKR

TPS51275CRUKT

Tape and Reel

Mini reel

3000

250

VREG3

PLASTIC Quad Flat

Pack

EN1 and EN2

Tape and Reel

Mini reel

3000

250

(20 pin QFN)

VREG3 and 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.

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.

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.

12 3 4 5 6 7...28

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与TPS51275相关器件

型号	品牌	获取价格	描述	数据表
TPS51275_13	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
TPS51275_17	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
TPS51275B	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
TPS51275B-1	TI	获取价格	TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs
TPS51275B-1_15	TI	获取价格	TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs
TPS51275B-1RUKR	TI	获取价格	TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs
TPS51275B-1RUKT	TI	获取价格	TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs
TPS51275BRUKR	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
TPS51275BRUKT	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
TPS51275C	TI	获取价格	Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs

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