Datasheet > TPS5300DAP

TPS5300DAP

更新时间： 2024-11-25 23:37:19

品牌	Logo	应用领域
其他 - ETC		模拟IC 开关光电二极管
页数	文件大小	规格书
16页	233K
描述
Analog IC

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TPS5300DAP 数据手册

TPS5300

IMVP MOBILE POWER SUPPLY CONTROLLER

SLVS334 – DECEMBER 2000

DAP PACKAGE

(TOP VIEW)

Single-Chip Speed Step Solution

Hysteretic Controller Provides Fast

Transient Response Time and Reduced

Output Capacitance

DRV_CLK

VSENSE_CLK

DT_SET

ANAGND

VSENSE_CORE

SLOWST

VREFB

DRV_IO

VSENSE_IO

VBIAS

ENABLE_EXT

RAMP

VID0

VID1

VID2

VID3

VID4

Two Linear Regulator Controllers

Regulating Clock and I/O Voltages

Internal 2-A (Typ) Gate Drivers With

Bootstrap Diode Which Increase Efficiency

5-Bit Dynamic VID

VHYST

OCP

DROOP

Active Droop Compensation Enables Tight

Dynamic Regulation for Reduced Output

Capacitance

IOUT

PSM/LATCH

IS–

VR_ON

BOOT

Power Saving Mode (PSM) Promotes Long

Battery Life

IS+

VGATE

DRVGND

High Bandwidth Current Sense Amplifier

Adaptive Dead-Time Control Circuit

Prevents Cross Conduction

OVP, OCP, UVLO, UVP, and Thermal System

Protection

VGATE Terminal Provides Power-Good

Signal for All Three Outputs

Enable External Terminal (ENABLE_EXT)

32-Pin TSSOP PowerPAD Enhances

Thermal Performance

1% Reference Voltage Accuracy

description

The TPS5300 is a hysteretic synchronous-buck controller, with two on-chip linear regulator controllers,

incorporating speed-step output voltage positioning technology. The TPS5300 provides a precise,

programmable supply voltage to a mobile processor. A ripple regulator provides the core voltage, while two

linear regulator drivers regulate external NPN power transistors for the I/O and CLK voltages. A 5-bit voltage

identification (VID) DAC allows programming for the ripple regulator voltage to values between 0.925 V to

1.275 V in 25 mV steps and 1.30 V to 2 V in 50 mV. The fast transient response time and active voltage DROOP

positioning reduce the number of output capacitors required to keep the output voltage within tight dynamic

voltage regulation limits. The power saving mode (PSM) allows the user to select a single operating ramp or

allows the controller to automatically switch to lower frequencies at low loads. The high-gain current sense

differential amplifier allows the use of small-value sense resistors that minimize conduction losses. The

TPS5300 includes high-side and low-side gate drivers rated at 2 A typical, that enable efficient operation at

higher frequencies and drive larger or multiple power MOSFETs. An adaptive dead-time circuit minimizes

dead-time losses while preventing cross-conduction of high-side and low-side switches. All three outputs power

up together as they track the same user programmable slowstart voltage. The enable external (ENABLE_EXT)

terminal allows the TPS5300 to activate external switching controllers for additional system power

requirements. The TPS5300 features undervoltage lockout, overvoltage, undervoltage, and

user-programmable overcurrent protection, and is packaged in a small 32-pin TSSOP PowerPAD package.

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...16

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与TPS5300DAP相关器件

型号	品牌	获取价格	描述	数据表
TPS5300DAPG4	TI	获取价格	3.3A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO32, GREEN, PLASTIC, HTSSOP-32
TPS5300DAPR	TI	获取价格	暂无描述
TPS53014	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53014DGS	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53014DGSR	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53015	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53015DGS	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53015DGSR	TI	获取价格	Single Synchronous Step-down Controller for Low Voltage Power Rails
TPS53114	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53114PW	TI	获取价格	暂无描述

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