Datasheet > TPS51427RHBRG4

TPS51427RHBRG4

更新时间： 2024-11-26 19:44:15

品牌	Logo	应用领域
德州仪器 - TI		开关输出元件
页数	文件大小	规格书
41页	2120K
描述
Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85

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TPS51427RHBRG4 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	HVQCCN,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
其他特性：	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.7V TO 4.5V; ALSO HAS OUTPUT OF 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 V
JESD-30 代码：	S-PQCC-N32	JESD-609代码：	e4
长度：	5 mm	湿度敏感等级：	2
功能数量：	1	端子数量：	32
最高工作温度：	85 °C	最低工作温度：	-40 °C
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：	1 mm	表面贴装：	YES
切换器配置：	PUSH-PULL	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：	5 mm
Base Number Matches：	1

TPS51427RHBRG4 数据手册

TPS51427

www.ti.com ................................................................................................................................................ SLUS819B–APRIL 2008–REVISED SEPTEMBER 2008

DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER

FOR NOTEBOOK POWER RAILS

FEATURES

DESCRIPTION

•

Fixed-Frequency Emulated On-Time Control;

Frequency Selectable from Three Options

The TPS51427 is a dual synchronous step-down

controller designed for notebook and mobile

communications applications. This device is part of a

low-cost suite of notebook power bus regulators that

enables system designs with low external component

•

D-CAP™ Mode Enables Fast Transient

Response Less than 100 ns

•

Advanced Ramp Compensation Allows Low

Output Ripple with Minimal Jitter

counts.

The

TPS51427

includes

two

•

Selectable PWM-Only/OOA™/Auto-Skip Modes

Wide Input Voltage Range: 5.5 V to 28 V

Dual Fixed or Adjustable SMPS:

pulse-width-modulation (PWM) controllers, SMPS1

and SMPS2. The output of SMPS1 can be adjusted

from 0.7 V to 5.9 V, while the output of SMPS2 can

be adjusted from 0.5 V to 2.5 V. This device also

features a low-dropout (LDO) regulator that provides

a 5-V/3.3-V output, or adjustable from 0.7-V to 4.5-V

output via LDOREFIN. The fixed-frequency emulated

adaptive on-time control supports seamless operation

between PWM mode under heavy load conditions

and reduced frequency operation at light loads for

high-efficiency down to the milliampere range. An

integrated boost switch enhances the high-side

MOSFET to further improve efficiency. The main

control loop is the D-CAP™ mode that is optimized

for low equivalent series resistance (ESR) output

capacitors such as POSCAP or SP-CAP. Advanced

ramp compensation minimizes jitter without degrading

line and load regulation. R_DS(on)current sensing

methods offers maximum cost saving.

–

0.7 V to 5.9 V (Channel1)

0.5 V to 2.5 V (Channel2)

•

Fixed 3.3-V/5-V, or Adjustable Output 0.7-V to

4.5-V LDO; Capable of Sourcing 100 mA

Fixed 3.3-VREF Output Capable of Sourcing

10 mA

Temperature Compensated Low-Side R_DS(on)

Current Sensing

Adaptive Gate Drivers with Integrated Boost

Switch

•

Bootstrap Charge Auto Refresh

Integrated Soft Start, Tracking Soft Stop

Independent PGOOD and EN for Each Channel

The TPS51427 supports supply input voltages that

range from 5.5 V to 28 V. It is available in the 32-pin,

APPLICATIONS

5-mm

5-mm QFN package (Green, RoHs-

•

Notebook I/O and System Bus Rails

Graphics Application

PDAs and Mobile Communication Devices

compliant, and Pb-free). The device is specified from

–40°C to +85°C.

TPS51427

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, OOA are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

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...41

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与TPS51427RHBRG4相关器件

型号	品牌	获取价格	描述	数据表
TPS51427RHBT	TI	获取价格	DUAL D-CAP⑩ SYNCHRONOUS STEP-DOWN CONTROLLER
TPS5142RHBR	TI	获取价格	SWITCHING CONTROLLER, PQCC32, 5 X 5 MM, GREEN, PLASTIC, QFN-32
TPS5142RHBT	TI	获取价格	SWITCHING CONTROLLER, PQCC32, 5 X 5 MM, GREEN, PLASTIC, QFN-32
TPS51461	TI	获取价格	3.3-V/5-V Input, 6-A, D-CAP+? Mode Synchronous Step-Down Integrated FETs Converter
TPS51461RGER	TI	获取价格	3.3-V/5-V Input, 6-A, D-CAP Mode Synchronous Step-Down Integrated FETs Converter With 2-Bi
TPS51461RGET	TI	获取价格	3.3-V/5-V Input, 6-A, D-CAP Mode Synchronous Step-Down Integrated FETs Converter With 2-Bi
TPS51462	TI	获取价格	3.3-V/5-V Input, D-CAPâ¢ Mode Synchronous St
TPS51462_17	TI	获取价格	3.3-V/5-V Input, D-CAP Mode Synchronous Step-Down Integrated FETs Converter With 2-Bit VID
TPS51462RGER	TI	获取价格	3.3-V/5-V Input, D-CAPâ¢ Mode Synchronous St
TPS51462RGET	TI	获取价格	3.3-V/5-V Input, D-CAPâ¢ Mode Synchronous St

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