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TMK316BJ106ML PDF预览

TMK316BJ106ML

更新时间: 2024-11-04 11:59:23
品牌 Logo 应用领域
立锜 - RICHTEK 转换器
页数 文件大小 规格书
16页 236K
描述
2A, 24V, 3MHz Step-Down Converter

TMK316BJ106ML 数据手册

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RT8278  
2A, 24V, 3MHz Step-Down Converter  
General Description  
Features  
Wide Operating Input Range : 4.5V to 24V  
The RT8278 is a high voltage buck converter that can  
support an input voltage range from 4.5V to 24V with output  
current up to 2A. Current mode operation provides fast  
transient response and eases loop stabilization.  
Adjustable Output Voltage Range : 0.8V to 15V  
Output Current up to 2A  
25μA Low Shutdown Current  
High Efficiency up to 90% at 2.2MHz  
Programmable Frequency : 220kHz to 3MHz  
Internal Soft-Start  
The chip provides protection functions such as cycle-by-  
cycle current limiting and thermal shutdown protection.  
In shutdown mode, the regulator only draws 25μA of  
supply current. The RT8278 is available in a SOP-8  
(Exposed Pad) package.  
Stable with Low ESR Output Ceramic Capacitors  
Thermal Shutdown Protection  
Cycle-By-Cycle Over Current Protection  
RoHS Compliant and Halogen Free  
Ordering Information  
RT8278  
Applications  
DSL Modem forADSL2+ Standard  
Package Type  
SP : SOP-8 (Exposed Pad-Option 1)  
Distributed Power Systems  
Lead Plating System  
G : Green (Halogen Free and Pb Free)  
Pre-Regulator for Linear Regulators  
Note :  
Richtek products are :  
Pin Configurations  
` RoHS compliant and compatible with the current require-  
ments of IPC/JEDEC J-STD-020.  
` Suitable for use in SnPb or Pb-free soldering processes.  
(TOP VIEW)  
8
BOOT  
VIN  
RT  
2
3
4
7
6
5
EN  
GND  
Marking Information  
SW  
COMP  
FB  
9
RT8278GSP : Product Number  
GND  
RT8278  
YMDNN : Date Code  
GSPYMDNN  
SOP8 (Exposed Pad)  
Typical Application Circuit  
1
3
2
7
V
IN  
BOOT  
RT8278  
VIN  
C
10µF  
C
IN  
4.5V to 24V  
BOOT  
L
2.2µH  
10nF  
V
OUT  
SW  
3.3V/2A  
Chip Enable  
EN  
RT  
D
B220A  
R1  
C
OUT  
8
31.6k  
22µF  
R
24K  
RT  
5
6
4,  
FB  
9 (Exposed Pad)  
C
C
1nF  
R
36k  
C
R2  
10k  
GND  
COMP  
NC  
C
P
DS8278-02 March 2011  
www.richtek.com  
1

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