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RTQ6363

更新时间： 2024-09-24 17:01:07
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
35页 645K
描述
60VIN, 3.5A, Asynchronous Step-Down Converter with Low Quiescent Current

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RTQ6363 数据手册

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®
RTQ6363  
60VIN, 3.5A, Asynchronous Step-Down Converter with Low  
Quiescent Current  
General Description  
Features  
Wide Input Voltage Range  
The RTQ6363 is a 3.5A, high-efficiency, peak current mode  
control asynchronous step-down converter. The device  
operates with input voltages from 4V to 60V. The device  
can program the output voltage between 0.8V to VIN. The  
low quiescent current design with the integrated low RDS(ON)  
of high-side MOSFET achieves high efficiency over the  
wide load range. The peak current mode control with simple  
external compensation allows the use of small inductors  
and results in fast transient response and good loop  
stability.  
4.5V to 60V  
4V to 60V (Soft-start is finished)  
Wide Output Voltage Range : 0.8V to VIN  
0.8V 1% Reference Accuracy  
Peak Current Mode Control  
Integrated 80mΩ High-Side MOSFET  
Low Quiescent Current : 100μA  
Low Shutdown Current : 2.25μA  
Adjustable Switching : 100kHz to 2.5MHz  
Synchronizable Switching : 300kHz to 2.2MHz  
Power Saving Mode (PSM) at Light Load  
Low Dropout at Light Loads with Integrated Boot  
Recharge FET  
The wide switching frequency of 100kHz to 2500kHz allows  
for efficiency and size optimization when selecting the  
output filter components. The ultra-low minimum on-time  
enables constant-frequency operation even at very high  
step-down ratios. For switching noise sensitive  
applications, it can be externally synchronized from  
300kHz to 2200kHz.  
Externally Adjustable Soft-Start by Part Number  
Option  
Power Good Indication by Part Number Option  
Enable Control  
The RTQ6363 provides complete protection functions such  
as input under-voltage lockout, output under-voltage  
protection, output over-voltage protection, over-current  
protection, and thermal shutdown. Cycle-by-cycle current  
limit provides protection against shorted outputs, and soft-  
start eliminates input current surge during start-up. The  
RTQ6363 is available in WDFN-10L 4x4 and SOP-8  
(Exposed pad) packages.  
Adjustable UVLO Voltage and Hysteresis  
Built-In UVLO, UVP, OVP, OCP, OTP  
Applications  
Communications and Industrial 12V, 24V and 48V Power  
Systems  
IndustrialAutomation and Motor Control  
Vehicle Accessories : GPS, Entertainment  
Simplified Application Circuit  
C
C
BOOT  
BOOT  
RTQ6363GQW  
RTQ6363GSP  
V
IN  
V
IN  
VIN  
VIN  
BOOT  
BOOT  
L1  
L1  
C
SW  
FB  
V
OUT  
C
SW  
V
OUT  
IN  
IN  
D1  
D1  
R
C
C
OUT  
FB1  
OUT  
R
R
EN  
FB1  
Enable Signal  
PGOOD  
EN  
Enable Signal  
FB  
PGOOD  
R
RT  
R
FB2  
FB2  
RT/SYNC  
COMP  
C
R
COMP  
COMP1  
COMP  
R
C
COMP  
COMP1  
C
SS/TR  
R
RT  
C
SS  
C
COMP2  
COMP2  
RT/SYNC  
PAD  
GND  
GND  
PAD  
Copyright 2020 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DSQ6363-01 May 2020  
www.richtek.com  
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