5秒后页面跳转
捷配首页

Datasheet > LM2619
LM2619 PDF预览

LM2619

更新时间： 2024-11-07 02:58:27
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
20页 1367K
描述
500-mA Sub-Miniature Step-Down DC-DC Converter

阅读下载

中文翻译

获取价格

LM2619 数据手册

 浏览型号LM2619的Datasheet PDF文件第2页浏览型号LM2619的Datasheet PDF文件第3页浏览型号LM2619的Datasheet PDF文件第4页浏览型号LM2619的Datasheet PDF文件第5页浏览型号LM2619的Datasheet PDF文件第6页浏览型号LM2619的Datasheet PDF文件第7页 
LM2619  
www.ti.com  
SNVS212B –NOVEMBER 2002–REVISED MAY 2013  
500-mA Sub-Miniature Step-Down DC-DC Converter  
Check for Samples: LM2619  
1
FEATURES  
DESCRIPTION  
The LM2619 step down DC-DC converter is  
optimized for powering circuits from a single lithium-  
ion cell. It steps down an input voltage of 2.8V to  
5.5V to an output of 1.5V to 3.6V at up to 500mA.  
Output voltage is set using resistor feedback dividers.  
2
•
•
•
Sub-Miniature 10-Bump Thin DSBGA Package  
Uses Small Ceramic Capacitors  
5-mV (Typical) PWM Mode Output Voltage  
Ripple (COUT = 22 µF)  
•
•
•
•
Internal Soft Start  
The device offers three modes for mobile phones and  
similar portable applications. Fixed-frequency PWM  
mode minimizes RF interference. A SYNC input  
allows synchronizing the switching frequency in a  
range of 500 kHz to 1 MHz. Low-current hysteretic  
PFM mode reduces quiescent current to 160 µA  
(typical). Shutdown mode turns the device off and  
reduces battery consumption to 0.02 µA (typical).  
Current Overload Protection  
Thermal Shutdown  
External Compensation  
KEY SPECIFICATIONS  
•
•
•
•
•
•
•
•
Operates from a single Li-ion cell : 2.8V to 5.5V  
Output voltage : 1.5V to 3.6V  
Current limit and thermal shutdown features protect  
the device and system during fault conditions.  
DC feedback voltage precision: ±1%  
Maximum Load Capability: 500mA  
PWM Mode Quiescent Current: 600µA typ  
Shutdown Current: 0.02 µA typ  
The LM2619 is available in a 10-bump DSBGA  
package. This packaging uses chip-scale DSBGA  
technology and offers the smallest possible size. A  
high switching frequency (600 kHz) allows use of tiny  
surface-mount components.  
PWM switching frequency: 600kHz  
SYNC input for PWM mode frequency  
synchronization from 0.5MHz to 1MHz  
The device features external compensation to tailor  
the response to a wide range of operating conditions.  
•
•
High efficiency (96% typical at 3.9 VIN, 3.6 VOUT  
and 200 mA) in PWM mode from internal  
synchronous rectification  
APPLICATIONS  
•
•
•
•
Mobile Phones  
100% Maximum Duty Cycle for Lowest  
Dropout  
Hand-Held Radios  
RF PC Cards  
Wireless LAN Cards  
Typical Application Circuits  
VIN  
2.8V to  
5.5V  
VIN  
3.2V to  
5.5V  
VOUT  
1.8 V  
VOUT  
2.5V  
10mF  
PVIN  
LM2619  
PVIN  
LM2619  
VDD  
10mF  
VDD  
EN  
EN  
SW  
FB  
SW  
FB  
1 0 mH  
10mH  
ON/OFF  
ON/OFF  
SYNC/  
MODE  
SYNC/  
MODE  
PWM/PFM  
PWM/PFM  
22mF  
22mF  
6.65k  
22.1k  
EAOUT  
EANEG SGND PGND  
39.2k  
EAOUT  
EANEG SGND PGND  
68.1k  
33.2k  
33.2k  
330pF  
330pF  
Figure 1. Typical Circuit for 1.8-V Output Voltage  
Figure 2. Typical Circuit for 2.5-V Output Voltage  
1
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.  
2
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.  
Copyright © 2002–2013, Texas Instruments Incorporated  
1234567...20

中文翻译

下载PDF

与LM2619相关器件

型号 品牌 获取价格 描述 数据表
LM2619_03 NSC

获取价格

 		500mA Sub-Miniature Step-Down DC-DC Converter
LM2619_15 TI

获取价格

 		500-mA Sub-Miniature Step-Down DC-DC Converter
LM2619ATL NSC

获取价格

 		500mA Sub-Miniature Step-Down DC-DC Converter
LM2619ATL/NOPB TI

获取价格

 		500mA Sub-Miniature Step-Down DC-DC Converter 10-DSBGA -25 to 85
LM2619ATLX NSC

获取价格

 		500mA Sub-Miniature Step-Down DC-DC Converter
LM2619MTC NSC

获取价格

 		500mA Step-Down DC-DC Converter
LM2619MTC/NOPB TI

获取价格

 		IC,SMPS CONTROLLER,CURRENT/VOLTAGE,TSSOP,14PIN,PLASTIC
LM2619MTCX NSC

获取价格

 		500mA Step-Down DC-DC Converter
LM2619MTCX/NOPB NSC

获取价格

 		IC,SMPS CONTROLLER,CURRENT/VOLTAGE,TSSOP,14PIN,PLASTIC
LM261H NSC

获取价格

 		IC COMPARATOR, 3000 uV OFFSET-MAX, MBCY10, METAL CAN, TO-100, 10 PIN, Comparator

与LM2619相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证