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LTC3734EUH

更新时间: 2024-11-13 11:41:47
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
28页 251K
描述
Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

LTC3734EUH 技术参数

是否Rohs认证:不符合生命周期:Transferred
零件包装代码:QFN包装说明:HVQCCN, LCC32,.2SQ,20
针数:32Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.19Is 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:30 V最小输入电压:4 V
JESD-30 代码:S-PQCC-N32JESD-609代码:e0
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:32
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:5 A最大输出电压:1.708 V
最小输出电压:0.7 V封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC32,.2SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):235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:610 kHz
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:20
宽度:5 mmBase Number Matches:1

LTC3734EUH 数据手册

 浏览型号LTC3734EUH的Datasheet PDF文件第2页浏览型号LTC3734EUH的Datasheet PDF文件第3页浏览型号LTC3734EUH的Datasheet PDF文件第4页浏览型号LTC3734EUH的Datasheet PDF文件第5页浏览型号LTC3734EUH的Datasheet PDF文件第6页浏览型号LTC3734EUH的Datasheet PDF文件第7页 
LTC3734  
Single-Phase,  
High Efficiency DC/DC  
Controller for Intel Mobile CPUs  
U
FEATURES  
DESCRIPTIO  
The LTC®3734 is a single-phase synchronous step-down  
switching regulator controller that drives all N-channel  
powerMOSFETsinaconstantfrequencyarchitecture. The  
output voltage is programmable by six VID bits during  
normal operation and by external resistors during initial  
boot-up and deeper sleep state. The LTC3734 drives its  
output stage at frequencies up to 550kHz. Powerful on-  
chipgatedriverseliminatetheneedforexternalgatedriver  
ICs, thus simplifying the design.  
Wide Input Voltage Range: 4V to 30V  
±1% Output Voltage Accuracy  
6-Bit IMVP-IV VID Code: VOUT = 0.7V to 1.708V  
Intel Compatible Power Saving Mode (PSIB)  
Power Good Output with Adaptive Masking  
Lossless Voltage Positioning  
Resistor Programmable VOUT at Boot-Up and  
Deeper Sleep State  
Resistor Programmable Deep Sleep Offset  
Programmable Fixed Frequency: 210kHz to 550kHz  
Adjustable Soft-Start Current Ramping  
Foldback Output Current Limit  
Short-Circuit Shutdown Timer with Defeat Option  
Overvoltage Protection  
AnIntelcompatiblePSIBinputisprovidedtoselectbetween  
twomodesofoperation.Fullyenhancedsynchronousmode  
achieves a very small output ripple and very fast transient  
response while power saving mode realizes very high ef-  
ficiency. OPTI-LOOP® compensation allows the transient  
responsetobeoptimizedforawiderangeofoutputcapaci-  
tance and ESR values.  
Available in 32-Lead 5mm × 5mm × 0.8mm (Profile)  
QFN Package  
U
The LTC3734 is available in a small 5mm × 5mm QFN  
APPLICATIO S  
package. For 2-phase applications refer to the LTC3735.  
Mobile and Desktop Computers  
Internet Servers  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
OPTI-LOOP is a registered trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
V
IN  
5V TO 24V  
C
IN  
M1  
M2  
MCH_PG  
DPRSLPVR  
STP_CPUB  
PSIB  
TG  
SW  
10μF  
35V  
×4  
0.8μH  
0.002Ω  
BG  
D1  
PGND  
V
OUT  
FREQSET  
+
0.7V TO 1.708V  
20A  
SENSE  
C
OUT  
+
VID5-VID0  
PGOOD  
6-BIT VID  
270μF  
2V  
SENSE  
×3  
12.7k  
13.3k  
LTC3734  
RBOOT  
I
TH  
56.2k  
13.3k  
R
C
RDPRSLP  
RUN/SS  
3k  
C
1.27M  
100pF  
RDPSLP  
+
C
0.1μF  
680pF  
V
OA  
SGND  
1.27M  
OAOUT  
V
OA  
4.5V TO 7V  
PV  
CC  
BAT54A  
4.7μF  
BOOST  
SV  
CC  
4.5V TO 7V  
0.47μF  
0.1μF  
3734 F01  
SW  
Figure 1. High Current Step-Down Converter  
3734f  
1

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