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LTC1929CG-PG#PBF PDF预览

LTC1929CG-PG#PBF

更新时间： 2024-09-24 19:38:27
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 314K
描述
LTC1929 - 2-Phase, High Efficiency, Synchronous Step-DownSwitching Regulators; Package: SSOP; Pins: 28; Temperature Range: 0°C to 70°C

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中文翻译

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LTC1929CG-PG#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：5.1模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
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：最大输出电流：3 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：1.99 mm
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：360 kHz技术：CMOS
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：5.29 mmBase Number Matches：1

LTC1929CG-PG#PBF 数据手册

 浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第2页浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第3页浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第4页浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第5页浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第6页浏览型号LTC1929CG-PG#PBF的Datasheet PDF文件第7页 
LTC1929/LTC1929-PG  
2-Phase, High Efficiency,  
Synchronous Step-Down  
Switching Regulators  
U
FEATURES  
DESCRIPTIO  
The LTC®1929/LTC1929-PG are 2-phase, single output,  
synchronous step-down current mode switching regula-  
torcontrollersthatdriveN-channelexternalpowerMOSFET  
stages in a phase-lockable fixed frequency architecture.  
The 2-phase controllers drive their two output stages out  
of phase at frequencies up to 300kHz to minimize the RMS  
ripple currents in both input and output capacitors. The  
2-phase technique effectively multiplies the fundamental  
frequency by two, improving transient response while  
operating each channel at an optimum frequency for  
efficiency. Thermal design is also simplified.  
■
2-Phase Single Output Controller  
■
Reduces Required Input Capacitance and Power  
Supply Induced Noise  
■
Current Mode Control Ensures Current Sharing  
■
Phase-Lockable Fixed Frequency: 150kHz to 300kHz  
■
True Remote Sensing Differential Amplifier  
OPTI-LOOPTM Compensation Improves Transient  
■
Response  
■
±
1% Output Voltage Accuracy  
■
■
■
■
■
■
■
■
Power Good Output Voltage Monitor (LTC1929-PG)  
Wide VIN Range: 4V to 36V Operation  
Very Low Dropout Operation: 99% Duty Cycle  
Adjustable Soft-Start Current Ramping  
Internal Current Foldback  
Short-Circuit Shutdown Timer with Defeat Option  
Overvoltage Soft-Latch Eliminates Nuisance Trips  
An internal differential amplifier provides true remote  
sensing of the regulated supply’s positive and negative  
output terminals as required by high current applications.  
The RUN/SS pin provides soft-start and a defeatable,  
timed, latched short-circuit shutdown to shut down both  
channels. Internal foldback current limit provides protec-  
tion for the external synchronous MOSFETs in the event of  
an output fault. OPTI-LOOP compensation allows the  
transient response to be optimized over a wide range of  
output capacitance and ESR values.  
Available in 28-LUead SSOP Package  
APPLICATIO S  
■
Desktop Computers  
■
Internet/Network Servers  
■
Large Memory Arrays  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
OPTI-LOOP is a trademark of Linear Technology Corporation.  
■
DC Power Distribution Systems  
U
TYPICAL APPLICATIO  
10Ω  
V
IN  
5V TO 28V  
10µF  
35V  
0.1µF  
CERAMIC  
×4  
V
TG1  
BOOST1  
SW1  
IN  
0.1µF  
0.47µF  
LTC1929  
L1  
1µH  
0.002Ω  
RUN/SS  
BG1  
D1  
PGND  
+
1000pF  
SENSE1  
SENSE1  
I
TH  
–
10k  
100pF  
16k  
TG2  
BOOST2  
SW2  
SGND  
V
OUT  
0.47µF  
1.6V/40A  
L2  
1µH  
0.002Ω  
V
BG2  
D2  
DIFFOUT  
EAIN  
–
INTV  
CC  
+
C
10µF  
OUT  
+
V
SENSE2  
SENSE2  
1000µF  
4V  
OS  
16k  
+
–
V
OS  
×2  
C
OUT  
: T510E108K004AS L1, L2: CEPH149-1ROMC  
1929 F01  
Figure 1. High Current 2-Phase Step-Down Converter  
1
1234567...28

中文翻译

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LTC1929CG-PG#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1929CG-PG Linear

完全替代

 2-Phase, High Efficiency,Synchronous Step-Down Switching Regulators
LTC1929IG-PG Linear

类似代替

 2-Phase, High Efficiency,Synchronous Step-Down Switching Regulators

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