TPS40042

更新时间： 2024-09-16 03:58:39

品牌	Logo	应用领域
德州仪器 - TI		输入元件控制器
页数	文件大小	规格书
35页	834K
描述
LOW PIN COUNT, LOW VIN (3.0 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH EXTERNAL REFERENCE INPUT

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TPS40042 数据手册

TPS40042

www.ti.com

SLUS777–NOVEMBER 2007

LOW PIN COUNT, LOW V (3.0 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC

CONTROLLER WITH EXTERNAL REFERENCE INPUT

FEATURES

CONTENTS

•

3.0-V to 5.5-V Input

•

External Reference required: 0.5 V to 1.5 V

Output Voltage from REFIN to 90% of VIN

High-Side Drive for N-Channel FET

Supports Pre-Biased Outputs

Device Ratings

Electrical Characteristics

Device Information

Application Information

Design Examples

Adaptive Anti-Cross Conduction Gate Drive

Fixed switching frequency (600 kHz) Voltage

Mode Control

Additional References

•

Three Selectable Short Circuit Protection

Levels

DESCRIPTION

•

Hiccup Restart from Faults

Active Low Enable

The TPS40042 DC/DC controller is designed to

operate with an input source between a 3.0 V and 5.5

V. To reduce the number of external components, a

number of operating parameters are fixed internally.

The operating frequency for example, is internally set

at 600 kHz. (Continued)

Thermal Shutdown Protection at 145°C

10-Pin, 3-mm x 3-mm SON (DRC)

APPLICATIONS

•

DDR Memory

Point of Load

Telecommunications

DC to DC Modules

TPS40042

HDRV 10

Reference Input

REFIN

BOOT

LDRV

GND

OUT

Enable

COMP

VDD

UDG-07141

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.

Predictive Gate Drive is a registered 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...35

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