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LTC3412IFE#TRPBF

更新时间： 2024-09-23 13:02:15
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
20页 213K
描述
LTC3412 - 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator; Package: TSSOP; Pins: 16; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3412IFE#TRPBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP,
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.08Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：5.5 V最小输入电压：2.7 V
标称输入电压：3.3 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e3长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：最大输出电流：6.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, 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表面贴装：YES
切换器配置：BUCK最大切换频率：4000 kHz
温度等级：OTHER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：30
宽度：4.4 mmBase Number Matches：1

LTC3412IFE#TRPBF 数据手册

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LTC3412  
2.5A, 4MHz, Monolithic  
Synchronous Step-Down Regulator  
U
FEATURES  
DESCRIPTIO  
The LTC®3412 is a high efficiency monolithic synchro-  
nous, step-down DC/DC converter utilizing a constant  
frequency, current mode architecture. It operates from an  
input voltage range of 2.625V to 5.5V and provides an  
adjustable regulated output voltage from 0.8V to 5V while  
delivering up to 2.5A of output current. The internal  
synchronous power switch with 85mΩ on-resistance  
increases efficiency and eliminates the need for an exter-  
nal Schottky diode. Switching frequency is set by an  
external resistor or can be sychronized to an external  
clock. 100% duty cycle provides low dropout operation  
extending battery life in portable systems. OPTI-LOOP®  
compensation allows the transient response to be opti-  
mized over a wide range of loads and output capacitors.  
The LTC3412 can be configured for either Burst Mode®  
operation or forced continuous operation. Forced con-  
tinuousoperationreducesnoiseandRFinterferencewhile  
Burst Mode operation provides high efficiency by reduc-  
ing gate charge losses at light loads. In Burst Mode  
operation, external control of the burst clamp level allows  
the output voltage ripple to be adjusted according to the  
requirements of the application. To further maximize  
battery life, the P-channel MOSFET is turned on continu-  
ously in dropout (100% duty cycle).  
■
High Efficiency: Up to 95%  
2.5A Output Current  
Low Quiescent Current: 62μA  
Low RDS(ON) Internal Switches: 85mΩ  
Programmable Frequency: 300kHz to 4MHz  
No Schottky Diode Required  
±2% Output Voltage Accuracy  
0.8V Reference Allows Low Output Voltage  
Selectable Forced Continuous/Burst Mode Operation  
with Adjustable Burst Clamp  
Synchronizable Switching Frequency  
Low Dropout Operation: 100% Duty Cycle  
Power Good Output Voltage Monitor  
Overtemperature Protection  
■
■
■
■
■
■
■
■
■
■
■
■
■
Available in 16-Lead Thermally Enhanced TSSOP  
and QFN Packages  
U
APPLICATIO S  
■
Portable Instruments  
Battery-Powered Equipment  
Notebook Computers  
Distributed Power Systems  
Cellular Telephones  
Digital Cameras  
■
■
■
■
■
, LT, LTC, LTM, Burst Mode and OPTI-LOOP are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
Efficiency vs Load Current  
V
IN  
2.7V TO 5.5V  
22μF  
100  
SV  
IN  
PV  
IN  
R
PGOOD  
SW  
LTC3412  
T
1μH  
V
2.5V  
2.5A  
OUT  
80  
60  
40  
20  
0
309k  
4.7M  
Burst Mode OPERATION  
FORCED CONTINUOUS  
100μF  
PGND  
SGND  
RUN/SS  
470pF  
15k  
I
TH  
SYNC/MODE  
V
FB  
1000pF  
100pF  
392k  
110k  
75k  
3412 F01  
V
V
= 3.3V  
IN  
OUT  
= 2.5V  
0.001  
0.01  
0.1  
1
10  
LOAD CURRENT (A)  
3412 G01  
Figure 1. 2.5V, 2.5A Step-Down Regulator  
3412fb  
1
1234567...20

中文翻译

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LTC3412IFE#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3412IFE#PBF Linear

类似代替

 LTC3412 - 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator; Package: TSSOP; Pins: 16
LTC3412EFE#TR Linear

功能相似

 LTC3412 - 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator; Package: TSSOP; Pins: 16

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