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LM3676SD-ADJ/NOPB PDF预览

LM3676SD-ADJ/NOPB

更新时间： 2024-11-16 11:11:31
品牌 Logo 应用领域
德州仪器 - TI 控制器开关
页数 文件大小 规格书
27页 4250K
描述
具有模式控制的 2MHz、600mA 降压直流/直流控制器 | NGQ | 8 | -30 to 85

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LM3676SD-ADJ/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：SOIC
包装说明：LLP-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.84Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：2.9 V标称输入电压：3.6 V
JESD-30 代码：R-XDSO-N8JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-30 °C
最大输出电流：1.2 A最大输出电压：3.3 V
最小输出电压：1.1 V封装主体材料：UNSPECIFIED
封装代码：HVSON封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：2600 kHz温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LM3676SD-ADJ/NOPB 数据手册

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LM3676  
www.ti.com  
SNVS426C –NOVEMBER 2006–REVISED MAY 2013  
2-MHz 600-mA Step-Down DC-DC Converter With Mode Control  
Check for Samples: LM3676  
1
FEATURES  
DESCRIPTION  
The LM3676 step-down DC-DC converter is  
optimized for powering low voltage circuits from a  
single Li-Ion cell battery and input voltage rails from  
2.9V to 5.5V. It provides up to 600mA load current,  
over the entire input voltage range. There are several  
different fixed voltage output options available as well  
as an adjustable output voltage version.  
2
•
•
•
•
16µA Typical Quiescent Current  
600mA Maximum Load Capability  
2MHz Typical PWM Fixed Switching Frequency  
Automatic PFM/PWM Mode Switching or  
Forced PWM Mode  
•
Available in Fixed Output Voltages and  
Adjustable Version  
The LM3676 has a mode-control pin that allows the  
user to select continuous Pulse Width Modulation  
(PWM) mode over the complete load range or an  
intelligent PFM-PWM mode that changes modes  
depending on the load. PWM mode offers superior  
efficiency under high load conditions (>100mA) and  
the lowest output noise performance. In Auto mode,  
PFM-PWM, hysteretic PFM extends the battery life  
through reduction of the quiescent current to 16µA  
(typ.) during light loads and system standby.  
•
•
8-Lead Non-Pullback WSON Package  
Internal Synchronous Rectification for High  
Efficiency  
•
•
•
•
Internal Soft Start  
0.01µA Typical Shutdown Current  
Operates From a Single Li-Ion Cell Battery  
Only Three Tiny Surface-Mount External  
Components Required (One Inductor, Two  
Ceramic Capacitors)  
The LM3676 is available in a 8-lead non-pullback  
WSON package in leaded (PB) and lead-free (NO  
PB) versions. A high switching frequency of 2 MHz  
(typ) allows use of tiny surface-mount components,  
an inductor and two ceramic capacitors.  
•
Current Overload and Thermal Shutdown  
Protection  
APPLICATIONS  
•
•
•
•
•
•
•
Mobile Phones  
PDAs  
MP3 Players  
WLAN  
Portable Instruments  
Digital Still Cameras  
Portable Hard Disk Drives  
TYPICAL APPLICATION CIRCUITS  
V
IN  
L1: 2.2 mH  
2.9V to 5.5V  
V
IN  
V
OUT  
SW  
2
8
C
OUT  
C
IN  
LM3676  
10 mF  
PGND  
NC  
4.7 mF  
FB  
4
7
3
1
6
5
SGND  
MODE  
EN  
Figure 1. Typical Application Circuit  
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.  
2
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.  
Copyright © 2006–2013, Texas Instruments Incorporated  
 
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