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LTC3714EG#PBF

更新时间： 2024-11-11 13:09:47
品牌 Logo 应用领域
凌特 - Linear 运算放大器控制器
页数 文件大小 规格书
28页 338K
描述
LTC3714 - Intel Compatible, Wide Operating Range, Step-Down Controller with Internal Op Amp; Package: SSOP; Pins: 28; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3714EG#PBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP, SSOP28,.3
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.49Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
最大输入电压：36 V最小输入电压：4 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G28
JESD-609代码：e3长度：10.2 mm
湿度敏感等级：1功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：2 A
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装等效代码：SSOP28,.3封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：2 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL技术：CMOS
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：30
宽度：5.3 mmBase Number Matches：1

LTC3714EG#PBF 数据手册

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LTC3714  
Intel Compatible,  
Wide Operating Range, Step-Down Controller  
with Internal Op Amp  
U
DESCRIPTIO  
FEATURES  
The LTC®3714 is a synchronous step-down switching  
regulator controller for CPU power. An output voltage  
between 0.6V and 1.75V is selected by a 5-bit code (Intel  
mobile VID specification). The controller uses a constant  
on-time, valley current control architecture to deliver very  
low duty cycles without requiring a sense resistor. Oper-  
ating frequency is selected by an external resistor and is  
■
True Current Mode with Ultrafast Transient  
Response  
■
Stable with Ceramic COUT  
■
tON(MIN) < 100ns for Operation from High Input  
Ranges  
■
Supports Active Voltage Positioning  
■
No Sense Resistor Required  
■
5-Bit VID Programmable Output Voltage: 0.6V to 1.75V  
compensated for variations in VIN and VOUT.  
■
Dual N-Channel MOSFET Synchronous Drive  
Discontinuous mode operation provides high efficiency  
operation at light loads. A forced continuous control pin  
reduces noise and RF interference and can assist second-  
ary winding regulation by disabling discontinuous mode  
when the main output is lightly loaded. Internal op amp  
allows programmable offsets to the output voltage during  
power saving modes.  
■
Programmable Output Offsets  
■
Power Good Output Voltage Monitor  
■
Wide VIN Range: 4V to 36V  
■
±1% 0.6V Reference  
■
Adjustable Frequency  
■
Programmable Soft-Start  
■
Output Overvoltage Protection  
■
■
■
■
Fault protection is provided by internal foldback current  
limiting, an output overvoltage comparator and optional  
short-circuitshutdowntimer.Soft-startcapabilityforsup-  
ply sequencing is accomplished using an external timing  
capacitor. The regulator current limit level is user pro-  
grammable. Wide supply range allows operation from 4V  
to 36V at the input.  
Optional Short-Circuit Shutdown Timer  
Forced Continuous Control Pin  
Logic Controlled Micropower Shutdown: IQ ≤ 30µA  
Available in 0.20U9" Wide 28-Lead SSOP Package  
APPLICATIO S  
Power Supply for Mobile Pentium® Processors and  
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Pentium is a registered trademark of Intel Corporation.  
Transmeta Processors  
Notebook and Portable Computers  
■
U
TYPICAL APPLICATIO  
LTC3714  
R
ON  
Transient Response of 8A to 23A Output Load Step  
PGOOD  
I
ON  
INTV  
C
CC  
V
IN  
V
IN  
SS  
0.1µF  
5V TO 24V  
10µF  
35V  
×4  
M1  
RUN/SS  
TG  
1.395V  
IRF7811  
L1  
×2  
0.68µH  
V
I
TH  
SW  
OUT  
C , 0.22µF  
B
0.6V TO 1.75V  
23A  
R
C
C
C
C
BOOST  
OUT  
+
V
D
B
CMDSH-3  
270µF  
2V  
OUT  
SGND  
(1.35V)  
INTV  
CC  
×4  
50mV/DIV  
M2  
D1*  
UPS840  
BG  
VID4  
VID3  
VID2  
VID1  
VID0  
IRF7811  
×3  
1.213V  
23A  
SENSE  
5-BIT  
VID  
+
C
VCC  
4.7µF  
0.003Ω*  
I
PGND  
LOAD  
10A/DIV  
3714 F01  
V
OSENSE  
8A  
*OPTIONAL  
20µs/DIV  
3714 TA03  
Figure 1. High Efficiency Step-Down Converter  
3714f  
1
1234567...28

中文翻译

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LTC3714EG#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3714EG#TRPBF Linear

完全替代

 LTC3714 - Intel Compatible, Wide Operating Range, Step-Down Controller with Internal Op Am

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