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RT6222AHGJ6F 参数 Datasheet PDF下载

RT6222AHGJ6F图片预览
型号: RT6222AHGJ6F
PDF下载: 下载PDF文件 查看货源
内容描述: [IC REG BUCK ADJ 2.5A SYNC TSOT23]
分类和应用:
文件页数/大小: 15 页 / 312 K
品牌: RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
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®
RT6222A/B  
2.5A, 18V, 500kHzACOTTMSynchronousStep-Down Converter  
General Description  
Features  
4.3V to 18V Input Voltage Range  
The RT6222A/B is a synchronous step-down converter  
withAdvanced Constant On-Time (ACOTTM) control mode.  
The ACOTTM provides a very fast transient response with  
few external components. The low impedance internal  
MOSFET supports high efficiency operation with wide input  
voltage range from 4.3V to 18V. The proprietary circuit of  
the RT6222A/B enables to support all ceramic capacitors.  
The output voltage can be adjusted between 0.6V and 8V.  
2.5A Output Current  
Advanced Constant On-Time Control  
Fast Transient Response  
Support All Ceramic Capacitors  
Up to 95% Efficiency  
500kHz Switching Frequency  
Adjustable Output Voltage from 0.6V to 8V  
Cycle-by-Cycle Current Limit  
Input Under-Voltage Lockout  
Hiccup Mode Under-Voltage Protection  
Thermal Shutdown  
Ordering Information  
RT6222A/B  
Package Type  
J6F : TSOT-23-6 (FC)  
Power Saving Mode for High Efficiency at Light  
Load  
Lead Plating System  
G : Green (Halogen Free and Pb Free)  
Low Output Voltage Ripple at Light Load  
High Side Over Current Limit  
RoHS Compliant and Halogen Free  
UVP Option  
H: Hiccup  
PSM/PWM  
A : PSM/PWM  
B : Force-PWM  
Applications  
Industrial and Commercial Low Power Systems  
Note :  
Computer Peripherals  
Richtek products are :  
LCDMonitors and TVs  
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.  
Green Electronics/Appliances  
Point of Load Regulation for High-PerformanceDSPs,  
FPGAs, and ASICs  
Simplified Application Circuit  
RT6222A/B  
BOOT  
V
IN  
VIN  
V
SW  
FB  
OUT  
Enable  
EN  
GND  
Copyright 2015 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS6222A/B-00 October 2015  
www.richtek.com  
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