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LMR61428XMM-NOPB PDF预览

LMR61428XMM-NOPB

更新时间: 2024-02-02 18:45:30
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
16页 973K
描述
LMR61428 SIMPLE SWITCHER® 14Vout, 2.85A Step-Up Voltage Regulator in MSOP

LMR61428XMM-NOPB 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:TSSOP, TSSOP8,.19
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:5.72其他特性:ALSO OPERATES IN ADJUSTABLE MODE UP TO 14V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
最大输入电压:5 V最小输入电压:2.5 V
标称输入电压:3.3 VJESD-30 代码:S-PDSO-G8
JESD-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:-40 °C最大输出电流:2.85 A
最大输出电压:14 V最小输出电压:1.24 V
标称输出电压:3.3 V封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP8,.19
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BOOST
最大切换频率:2000 kHz技术:BICMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 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 mmBase Number Matches:1

LMR61428XMM-NOPB 数据手册

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LMR61428  
www.ti.com  
SNVS815 JUNE 2012  
LMR61428 SIMPLE SWITCHER® 14Vout, 2.85A Step-Up Voltage Regulator in MSOP  
Check for Samples: LMR61428  
1
FEATURES  
APPLICATIONS  
2
1.2V to 14V Input Voltage  
Boost/SEPIC conversions from 3.3V, 5V, and  
12V  
Adjustable Output Voltage up to 14V  
Switch current up to 2.85A  
Space constrained applications  
LCD displayed  
Up to 2 MHz Switching Frequency  
Low shutdown Iq, <1µA  
LED applications  
Cycle by cycle current limitting  
MSOP-8 packaging (3.0 x 5.0 x 1.09mm)  
WEBENCH® enabled  
DESCRIPTION  
The LMR61428 is a step-up DC-DC switching regulator for battery-powered and low input voltage systems that  
can achieve efficiencies up to 90%. It has a wide input voltage range from 1.2V to 14V and a possible regulated  
output voltage range of 1.24V to 14V. It has an internal 0.17Ω N-Channel MOSFET power switch.  
The high switching frequency of up to 2MHz of the LMR61428 allows for tiny surface mount inductors and  
capacitors. Because of the unique constant-duty-cycle gated oscillator topology very high efficiencies are realized  
over a wide load range. The supply current is reduced to 80µA because of the BiCMOS process technology. In  
the shutdown mode, the supply current is less than 2.5µA.  
The LMR61428 is available in a Mini-SO-8 package. This package uses half the board area of a standard 8-pin  
SO and has a height of just 1.09 mm.  
Performance Benefits  
Extremely easy to use  
Tiny overall solution reduces system cost  
System Performance  
Figure 1. Efficiency vs Load Current, VOUT = 5V  
84  
82  
80  
78  
76  
74  
72  
Vin = 3.0V  
Vin = 3.2V  
Vin = 3.4V  
Vin = 3.6V  
Vin = 3.8V  
Vin = 4.0V  
70  
68  
66  
64  
0.00 0.09 0.18 0.27 0.36 0.45 0.54  
(A)  
I
OUT  
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 © 2012, Texas Instruments Incorporated  

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