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LTC1872BES6#PBF PDF预览

LTC1872BES6#PBF

更新时间: 2024-02-05 14:41:15
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管控制器
页数 文件大小 规格书
12页 195K
描述
LTC1872B - Constant Frequency Current Mode Step-Up DC/DC Controller in ThinSOT; Package: SOT; Pins: 6; Temperature Range: -40°C to 85°C

LTC1872BES6#PBF 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:LSSOP,
针数:6Reach Compliance Code:compliant
风险等级:5.72模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE最大输入电压:9.8 V
最小输入电压:2.5 V标称输入电压:4.2 V
JESD-30 代码:R-PDSO-G6JESD-609代码:e3
长度:2.95 mm湿度敏感等级:1
功能数量:1端子数量:6
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:1 A封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW 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:1.45 mm
表面贴装:YES切换器配置:SINGLE
最大切换频率:650 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:1.625 mm
Base Number Matches:1

LTC1872BES6#PBF 数据手册

 浏览型号LTC1872BES6#PBF的Datasheet PDF文件第2页浏览型号LTC1872BES6#PBF的Datasheet PDF文件第3页浏览型号LTC1872BES6#PBF的Datasheet PDF文件第4页浏览型号LTC1872BES6#PBF的Datasheet PDF文件第5页浏览型号LTC1872BES6#PBF的Datasheet PDF文件第6页浏览型号LTC1872BES6#PBF的Datasheet PDF文件第7页 
LTC1872B  
Constant Frequency  
Current Mode Step-Up  
DC/DC Controller in ThinSOT  
U
FEATURES  
DESCRIPTIO  
Burst ModeTM Operation Disabled for Lower Output  
The LTC®1872B is a constant frequency current mode  
step-up DC/DC controller providing excellent AC and DC  
load and line regulation. The device incorporates an accu-  
rate undervoltage lockout feature that shuts down the  
LTC1872B when the input voltage falls below 2.0V.  
Ripple at Light Loads  
High Efficiency: Over 90%  
High Output Currents Easily Achieved  
Wide VIN Range: 2.5V to 9.8V  
VOUT Limited Only by External Components  
The LTC1872B provides a ±2.5% output voltage accuracy  
and consumes only 270µA of quiescent current. In shut-  
down, the device draws a mere 8µA.  
Constant Frequency 550kHz Operation  
Current Mode Operation for Excellent Line and Load  
Transient Response  
High constant operating frequency of 550kHz allows the  
use of a small external inductor. The constant frequency  
operation is maintained down to very light loads, resulting  
in less low frequency noise generation over a wide load  
current range.  
Shutdown Mode Draws Only 8µA Supply Current  
Low Profile (1mm) ThinSOTTM Package  
U
APPLICATIO S  
Optical Communications  
The LTC1872B is available in a 6-lead low profile (1mm)  
ThinSOT package. For a Burst Mode operation enabled  
versionoftheLTC1872B, pleaserefertotheLTC1872data  
sheet.  
Lithium-Ion-Powered Applications  
Cellular Telephones  
Wireless Devices  
Portable Computers  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode and ThinSOT are trademarks of Linear Technology Corporation.  
Scanners  
U
TYPICAL APPLICATION  
Typical Efficiency vs Load Current*  
V
IN  
3.3V  
100  
95  
90  
85  
80  
75  
70  
65  
C1  
10µF  
10V  
R1  
0.03Ω  
V
V
= 3.3V  
OUT  
IN  
= 5V  
147k  
1
5
L1  
I
/RUN  
V
TH  
IN  
4.7µH  
LTC1872B  
GND  
220pF  
80.6k  
V
OUT  
2
3
4
6
5V  
1A  
SENSE  
C2  
4× 10µF  
10V  
D1  
M1  
V
NGATE  
FB  
422k  
C1: TAIYO YUDEN CERAMIC EMK325BJ106MNT  
C2: MURATA GRM42-2X5R106K010AL  
D1: IR10BQ015  
L1: MURATA LQN6C4R7M04  
M1: Si2302DS  
R1: DALE 0.25W  
1
10  
100  
1000  
LOAD CURRENT (mA)  
1872B TA01  
1872B TA01b  
Figure 1. LTC1872B High Output Current 3.3V to 5V Boost Converter  
*Output ripple waveforms for the circuit of Figure 1 appear in Figure 2.  
1

LTC1872BES6#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1872BES6#TR Linear

完全替代

LTC1872B - Constant Frequency Current Mode Step-Up DC/DC Controller in ThinSOT; Package: S

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