Datasheet > LM2650_15

LM2650_15

更新时间： 2024-11-24 01:17:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
19页	938K
描述
Synchronous Step-Down DC/DC Converter

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM2650_15 数据手册

LM2650

www.ti.com

SNVS133C –JUNE 1999–REVISED APRIL 2013

LM2650 Synchronous Step-Down DC/DC Converter

Check for Samples: LM2650

FEATURES

DESCRIPTION

The LM2650 is

a step-down DC/DC converter

•

Ultra High Efficiencies (95% possible)

featuring high efficiency over a 3A to milliamperes

load range. This feature makes the LM2650 an ideal

fit in battery-powered applications that demand long

battery life in both run and standby modes.

High Efficiency Over a 3A to Milliamperes

Load Range

•

Synchronous Switching of Internal NMOS

Power FETs

The LM2650 also features

shutdown mode in which it draws at most 25μA from

the input power supply.

logic-controlled

•

Wide Input Voltage Range (4.5V to 18V)

Output Voltage Adjustable from 1.5V to 16V

Automatic Low-Power Sleep Mode

The LM2650 employs a fixed-frequency pulse-width

modulation (PWM) and synchronous rectification to

achieve very high efficiencies. In many applications,

efficiencies reach 95%+ for loads around 1A and

exceed 90% for moderate to heavy loads from 0.2A

to 2A.

Logic-Controlled Micropower Shutdown (I_QSD

25 µA)

≤

•

Frequency Adjustable up to 300 kHz

Frequency Synchronization with External

Signal

low-power hysteretic or "sleep" mode keeps

•

Programmable Soft-Start

efficiencies high at light loads. The LM2650 enters

and exits sleep mode automatically as the load

crosses "sleep in" and "sleep out" thresholds. The

LM2650 provides nodes for programming both

thresholds via external resistors. A logic input allows

the user to override the automatic sleep feature and

keep the LM2650 in PWM mode regardless of the

load level.

Short-Circuit Current Limiting

Thermal Shutdown

Available in 24-lead Small-Outline Package

APPLICATIONS

•

Notebook and Palmtop Personal Computers

Portable Data Terminals

An optional soft-start feature limits current surges

from the input power supply at start up and provides

Modems

simple means of sequencing multiple power

Portable Instruments

supplies.

Global Positioning Devices (GPSs)

Battery-Powered Digital Devices

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.

12 3 4 5 6 7...19

中文翻译

下载PDF

与LM2650_15相关器件

型号	品牌	获取价格	描述	数据表
LM2650M-ADJ	NSC	获取价格	Synchronous Step-Down DC/DC Converter
LM2650M-ADJ/NOPB	NSC	获取价格	IC 7.5 A SWITCHING REGULATOR, 370 kHz SWITCHING FREQ-MAX, PDSO24, SOP-24, Switching Regula
LM2650M-ADJ/NOPB	TI	获取价格	Synchronous Step-Down DC/DC Converter
LM2650MX-ADJ	NSC	获取价格	Synchronous Step-Down DC/DC Converter
LM2650MX-ADJ/NOPB	TI	获取价格	Synchronous Step-Down DC/DC Converter
LM2651	NSC	获取价格	1.5A High Efficiency Synchronous Switching Regulator
LM2651	TI	获取价格	1.5A 高效开关稳压器
LM2651_05	NSC	获取价格	1.5A High Efficiency Synchronous Switching Regulator
LM2651MTC-1.8	NSC	获取价格	1.5A High Efficiency Synchronous Switching Regulator
LM2651MTC-1.8/NOPB	TI	获取价格	2.6A SWITCHING REGULATOR, 345kHz SWITCHING FREQ-MAX, PDSO16, TSSOP-16

与LM2650_15相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

35
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

26
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

54
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

52

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2650_15

LM2650_15 数据手册

与LM2650_15相关器件

与LM2650_15相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2650_15

LM2650_15 数据手册

与LM2650_15相关器件

与LM2650_15相关文章

您还可以找

您在本页遇到什么问题？