Datasheet > LM2717

LM2717

更新时间： 2024-10-28 11:12:55

品牌	Logo	应用领域
德州仪器 - TI		转换器
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21页	1191K
描述
双路降压直流/直流转换器

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LM2717 数据手册

LM2717

www.ti.com

SNVS253D –MAY 2005–REVISED MARCH 2013

LM2717 Dual Step-Down DC/DC Converter

Check for Samples: LM2717

FEATURES

DESCRIPTION

The LM2717 is composed of two PWM DC/DC buck

(step-down) converters. The first converter is used to

generate a fixed output voltage of 3.3V. The second

converter is used to generate an adjustable output

voltage. Both converters feature low R_DSON(0.16Ω)

internal switches for maximum efficiency. Operating

frequency can be adjusted anywhere between

300kHz and 600kHz allowing the use of small

external components. External soft-start pins for each

enables the user to tailor the soft-start times to a

specific application. Each converter may also be shut

down independently with its own shutdown pin. The

LM2717 is available in a low profile 24-lead TSSOP

package ensuring a low profile overall solution.

•

Fixed 3.3V Output Buck Converter with a 2.2A,

0.16Ω, Internal Switch

•

Adjustable Buck Converter with a 3.2A, 0.16Ω,

Internal Switch

•

Operating Input Voltage Range of 4V to 20V

Input Undervoltage Protection

300kHz to 600kHz Pin Adjustable Operating

Frequency

•

Over Temperature Protection

Small 24-Lead TSSOP Package

APPLICATIONS

•

TFT-LCD Displays

Handheld Devices

Portable Applications

Laptop Computers

Typical Application Circuit

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.

All 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.

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LM2717 替代型号

型号	品牌	替代类型	描述	数据表
LM2717-ADJ	TI	功能相似	LM2717-ADJ Dual Step-Down DC/DC Converter

与LM2717相关器件

型号	品牌	获取价格	描述	数据表
LM2717_08	NSC	获取价格	Dual Step-Down DC/DC Converter
LM2717-ADJ	NSC	获取价格	Dual Step-Down DC/DC Converter
LM2717-ADJ	TI	获取价格	LM2717-ADJ Dual Step-Down DC/DC Converter
LM2717-ADJ_08	NSC	获取价格	Dual Step-Down DC/DC Converter
LM2717-ADJ_15	TI	获取价格	LM2717-ADJ Dual Step-Down DC/DC Converter
LM2717MT	NSC	获取价格	Dual Step-down DC/DC Converter
LM2717MT/NOPB	NSC	获取价格	IC 3.2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO24, LEAD FREE, TSSOP-24, Swi
LM2717MT/NOPB	TI	获取价格	双路降压直流/直流转换器 \| PW \| 24 \| -40 to 125
LM2717MT-ADJ	NSC	获取价格	Dual Step-Down DC/DC Converter
LM2717MT-ADJ/NOPB	NSC	获取价格	IC 3.5 A DUAL SWITCHING CONTROLLER, 720 kHz SWITCHING FREQ-MAX, PDSO24, LEAD FREE, TSSOP-2