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RT6204

更新时间： 2024-01-28 10:18:43
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立锜 - RICHTEK /
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18页 1188K
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RT6204 技术参数

Status：ActiveVin (min) (V)：5.2
Vin (max) (V)：60Number of Outputs：1
Vout (min) (V)：0.8Vout (max) (V)：50
Preset Vout (V)：Output Adj. Method：Resistor
Iout (max) (A)：0.5Current Limit (typ) (A)：0.86
Freq (typ) (kHz)：350Freq (min) (kHz)：
Freq (max) (kHz)：Ext Sync：No
Ron_HS (typ) (mOhm)：660;890Ron_LS (typ) (mOhm)：330
Iq (typ) (mA)：0.6Features：Adjustable Soft-Start;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;OCP;PSM;SCP;Stable with Ceramic Capacitor;UVP
Package Type：PSOP-8Datasheet：https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS6204-04.pdf

RT6204 数据手册

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RT6204  
500mA, 60V, 350kHz Synchronous Step-Down Converter  
General Description  
Features  
0.8V Feedback Reference Voltage with 1.5%  
The RT6204 is a 60V, 500mA, 350kHz, high-efficiency,  
synchronous step-down DC-DC converter with an  
input-voltage range of 5.2V to 60V and a programmable  
output-voltage range of 0.8V to 50V. It features  
current-mode control to simplify external compensation  
and to optimize transient response with a wide range of  
inductors and output capacitors. High efficiency can be  
achieved through integrated N-MOSFETs, and  
pulse-skipping mode at light loads. With EN pin,  
power-up sequence can be more flexible and shutdown  
quiescent current can be reduced to < 3A.  
Accuracy  
Wide Input Voltage Range : 5.2V to 60V  
Output Current : 500mA  
Integrated N-MOSFETs  
Current-Mode Control  
Fixed Switching Frequency : 350kHz  
Programmable Output Voltage : 0.8V to 50V  
Low < 3AShutdown Quiescent Current  
Up to 92% Efficiency  
Pulse-Skipping Mode for Light-Load Efficiency  
Programmable Soft-Start Time  
Cycle-by-Cycle Current Limit Protection  
Input Under-Voltage Lockout, Output Under-Voltage  
and Thermal Shutdown Protection  
The RT6204 features cycle-by-cycle current limit for  
over-current protection against short-circuit outputs,  
and user-programmable soft-start time to prevent inrush  
current during startup. It also includes input under-voltage  
lockout, output under-voltage, and thermal shutdown  
protection to provide safe and smooth operation in all  
operating conditions.  
Applications  
4-20mA Loop-Powered Sensors  
OBD-II Port Power Supplies  
The RT6204 is available in the SOP-8 (Exposed pad)  
package.  
Low-Power Standby or Bias Voltage Supplies  
Industrial Process Control, Metering, and Security  
Systems  
High-Voltage LDO Replacement  
Telecommunications Systems  
Commercial Vehicle Power Supplies  
General Purpose Wide Input Voltage Regulation  
Simplified Application Circuit  
C
BOOT  
Efficiency vs. Output Current  
100  
90  
80  
V
VIN  
BOOT  
SW  
IN  
L1  
C
IN  
V
OUT  
70  
60  
50  
40  
30  
20  
10  
0
V
V
V
V
= 24V  
= 36V  
= 48V  
= 60V  
IN  
IN  
IN  
IN  
RT6204  
R1  
C
EN  
SS  
Enable  
FB  
GND  
COMP  
FF  
C
C
C
OUT  
R2  
C
C
P
SS  
R
C
V
= 12V  
OUT  
0
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5  
Output Current (A)  
Copyright © 2018 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation.  
DS6204-04 February 2018  
www.richtek.com  
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