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MIC2127AYML-T5 PDF预览

MIC2127AYML-T5

更新时间： 2024-11-06 21:13:51
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关
页数 文件大小 规格书
38页 835K
描述
75V, SYNCHRONOUS BUCK CONTROLLER

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中文翻译

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MIC2127AYML-T5 技术参数

是否无铅： 不含铅生命周期：Active
包装说明：HVQCCN, LCC16,.12SQ,20Reach Compliance Code：compliant
Factory Lead Time：6 weeks风险等级：2.11
其他特性：SEATED HT-CALCULATED模拟集成电路 - 其他类型：SWITCHING CONTROLLER
最大输入电压：75 V最小输入电压：4.5 V
标称输入电压：12 VJESD-30 代码：S-XQCC-N16
长度：3 mm功能数量：1
端子数量：16最高工作温度：125 °C
最低工作温度：-40 °C最大输出电压：30 V
最小输出电压：0.6 V封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装等效代码：LCC16,.12SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
筛选级别：TS16949座面最大高度：0.9 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：800 kHz温度等级：AUTOMOTIVE
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD宽度：3 mm
Base Number Matches：1

MIC2127AYML-T5 数据手册

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MIC2127A  
75V, Synchronous Buck Controller Featuring Adaptive  
On-Time Control  
Features  
General Description  
• Hyper Speed Control® Architecture Enables:  
The MIC2127A is a constant-frequency synchronous  
buck controller featuring a unique adaptive on-time  
control architecture. The MIC2127A operates over an  
input voltage range from 4.5V-75V. The output voltage  
is adjustable down to 0.6V with an accuracy of ±1%.  
The device operates with programmable switching  
frequency from 270 kHz-800 kHz.  
- High Input to Output Voltage Conversion  
Ratio Capability  
- Any Capacitor™ Stable  
- Ultra-Fast Load Transient Response  
• Wide 4.5V-75V Input Voltage Range  
• Adjustable Output Voltage from 0.6V to 30V  
The MIC2127A features a MODE pin that allows the  
user to select either Continuous Conduction mode or  
Hyper Light Load (HLL) mode under light loads. An  
auxiliary bootstrap LDO improves the system efficiency  
by supplying the MIC2127A internal circuit bias power  
and gate drivers from the output of the converter. A  
logic level enable (EN) signal can be used to enable or  
disable the controller. The MIC2127A can start-up  
monotonically into a prebiased output. The MIC2127A  
features an open drain power good signal (PG) that  
signals when the output is in regulation and can be  
used for simple power supply sequencing.  
• 270 kHz-800 kHz Programmable Switching Fre-  
quency  
• Built-In 5V Regulator for Single-Supply Operation  
• Auxiliary Bootstrap LDO for Improving System  
Efficiency  
• Internal Bootstrap Diode  
• Selectable Light Load Operating Mode  
• Enable Input and Power Good Output  
• Programmable Current Limit  
• Hiccup Mode Short-Circuit Protection  
The MIC2127A offers a full suite of protection features  
to ensure protection of the IC during Fault conditions.  
These include undervoltage lockout to ensure proper  
operation under power-sag conditions, “hiccup” mode  
short-circuit protection, internal soft start of 5 ms to  
reduce inrush current during start-up and thermal shut-  
down.  
• Soft Start, Internal Compensation and Thermal  
Shutdown  
• Supports Safe Start-Up into a Prebiased Output  
Applications  
• Networking/Telecom Equipment  
• Base Station, Servers  
The MIC2127A is available in a 16-pin 3 mm x 3 mm  
VQFN package, with an operating junction temperature  
range from –40°C to +125°C.  
• Distributed Power Systems  
• Industrial Power Supplies  
Typical Application  
VIN  
PVDD  
VIN  
4.5V* to 75V  
4.7 μF  
0.1 μF  
0.1 μF  
2.2 μFX3  
Q1  
DH  
10Ÿ  
BST  
L1  
10 μH  
VDD  
VOUT  
5V@5A  
4.7 μF  
SW  
ILIM  
C1  
+
330 μF  
MIC2127A  
47 μF  
1.3 kŸ  
0.1 μF  
PG  
EN  
Q2  
DL  
7.5 kŸ  
4.7 nF  
VIN  
36 kŸ  
VDD  
MODE  
FB  
1 kŸ  
100 kŸ  
60 kŸ  
EXTVDD  
VOUT  
FREQ  
VIN  
1 μF  
AGND  
PGND  
Q1,Q3: SiR878ADP  
L1: SRP1265A-100M, Bourns  
C1: 10SVP330M  
*Output voltage follows input voltage when the input is below the target output voltage  
2016 Microchip Technology Inc.  
DS20005676B-page 1  
 
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中文翻译

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