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RT8812C PDF预览

RT8812C

更新时间： 2023-12-18 00:00:00
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
20页 285K
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RT8812C 技术参数

Status：ActiveVs (typ)(V)：5
Vin (min)(V)：5Vin (max)(V)：26
Vout (min)(V)：0.3Vout (max)(V)：2
Preset Vout(V)：Output Adj. Method：Ext Vref;Resistor
Accuracy(+/- %)：1Freq (typ)(kHz)：300
Freq (min)(kHz)：150Freq (max)(kHz)：600
Iq (typ)(mA)：1.5Features：Adjustable Current Limit;Enable Input;OCP;OVP;Power Good;Selectable (PSM or PWM);UVP
Package Type：WQFN3x3-20

RT8812C 数据手册

 浏览型号RT8812C的Datasheet PDF文件第2页浏览型号RT8812C的Datasheet PDF文件第3页浏览型号RT8812C的Datasheet PDF文件第4页浏览型号RT8812C的Datasheet PDF文件第5页浏览型号RT8812C的Datasheet PDF文件第6页浏览型号RT8812C的Datasheet PDF文件第7页 
®
RT8812C  
Dual-Phase PWM Controller with PWM-VID Reference  
General Description  
Features  
Dual-Phase PWM Controller  
Two Embedded MOSFET Drivers and Embedded  
Switching Boot Diode  
The RT8812C is a 2/1 phase synchronous Buck PWM  
controller which is optimized for high performance graphic  
microprocessor and computer applications. The IC  
integrates a Constant-On-Time (COT) PWM controller, two  
MOSFET drivers with internal bootstrap diodes, as well  
as channel current balance and protection functions  
including Over-Voltage Protection (OVP), Under-Voltage  
Protection (UVP), current limit, and thermal shutdown into  
the WQFN-20L 3x3 package.  
External Reference Input Control  
PWM-VID Dynamic Voltage Control  
Dynamic Phase Number Control  
Lossless RDS(ON) Current Sensing for Current Balance  
Internal Soft-Start  
Adjustable Current Limit Threshold  
Adjustable Switching Frequency  
UVP/OVP Protection  
The RT8812C adopts RDS(ON) current sensing technique.  
Current limit is accomplished through continuous inductor-  
current-sense, while RDS(ON) current sensing is used for  
accurate channel current balance. Using the method of  
current sampling utilizes the best advantages of each  
technique.  
Shoot Through Protection and Short Pulse Free  
Technology  
Support an Ultra-Low Output Voltage as Standby  
Voltage  
Thermal Shutdown  
The RT8812C features external reference input and PWM-  
VIDdynamic output voltage control, in which the feedback  
voltage is regulated and tracks external input reference  
voltage. Other features include adjustable switching  
frequency, dynamic phase number control, internal soft-  
start, power good indicator, and enable functions.  
Power Good Indicator  
RoHS Compliant and Halogen Free  
Applications  
CPU/GPU Core Power Supply  
Notebook PC Memory Power Supply  
Chipset/RAM Power Supply  
GenericDC/DC Power Regulator  
Simplified Application Circuit  
RT8812C  
V
IN  
PVCC  
V
PVCC  
BOOT1  
UGATE1  
PHASE1  
V
OUT  
TON  
LGATE  
1
V
IN  
PGOOD  
V
IN  
BOOT  
2
UGATE2  
PSI  
VID  
PHASE2  
LGATE2  
EN  
RGND  
VSNS  
V
V
GND_SNS  
GND  
OUT_SNS  
Copyright 2013 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS8812C-02 November 2013  
www.richtek.com  
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