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RT5800

更新时间： 2024-02-07 16:51:32
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立锜 - RICHTEK /
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47页 2664K
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RT5800 技术参数

Status：ActiveVin (min) (V)：3
Vin (max) (V)：6Number of Outputs：3
Vout (min) (V)：0.3Vout (max) (V)：1.85
Preset Vout (V)：Output Adj. Method：Digital
Iout (max) (A)：5.5Current Limit (typ) (A)：7
Freq (typ) (kHz)：2100Freq (min) (kHz)：1850
Freq (max) (kHz)：2500Ext Sync：No
Ron_HS (typ) (mOhm)：25Ron_LS (typ) (mOhm)：15
Iq (typ) (mA)：0.07Features：ACOT Control;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OTP;OVP;SCP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type：WQFN4.5x5-30(FC)Datasheet：https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS5800-00.pdf

RT5800 数据手册

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RT5800  
2.1MHz, 3 CHs, Step-Down Converter with I2C Interface  
Features  
FMEA Compliant PinOut  
General Description  
The RT5800 is a multi-phase, programmable power  
management IC, integrated with four high efficient,  
synchronous step-down converter cores. The RT5800  
can be 2 + 2 and 2 + 1 + 1 output by OTP. It also  
features wide output voltage range and the capability to  
configure the corresponding power stages, which make  
the device optimized to meet power management  
requirements for low-power processors, such as core  
power for CPUs and GPUs. The RT5800 supports  
many programmable functions including voltage level,  
slew rate of voltage change, and slew rate of soft-start  
via an I2C interface capable of operating up to 3.4MHz.  
The RT5800 also supports remote-sense function to  
get accurate output voltage at large loading. Moreover,  
the device has interrupt and fault-detection function to  
report error status. The RT5800 is available in a  
WQFN-30L 4.5x5 (FC) package.  
2 + 2 / 2 + 1 + 1 Phase Output  
Input Supply Voltage Range : 3V to 6V  
I2C Programmable Output Voltage : 0.3V to 1.85V  
Maximum Output Current : 5.5A per Phase  
Output Remote Sense for High Accuracy  
Fast Transient Response  
Selectable Automatic Phase Shielding and  
Power Saving Mode Enables Higher Light Load  
Efficiency  
Dynamic  
Voltage  
Scaling  
(DVS)  
with  
Programmable Slew Rate for Each Output  
Programmable Soft-Start Function  
Interrupt Function and Fault Detection  
Watchdog Function  
Input Under-Voltage Lockout (UVLO)  
Cycle-by-Cycle Current Limit  
Output Under-Voltage Protection  
Over-Temperature Protection  
WQFN-30L 4.5x5 (FC)  
Applications  
Automotive Systems  
Simplified Application Circuit  
AVIN  
VOUT1  
L1  
L4  
PVIN1  
PVIN2  
PVIN3  
PVIN4  
V
IN  
LX1  
C
IN  
LX4  
V
OUT1  
OUT1  
OUT2  
OUT3  
C
C
C
RTN1  
VOUT2  
LX2  
EN  
L2  
L3  
V
OUT2  
SCL  
RT5800  
2
I C Signal  
SDA  
VSELA  
RTN2  
Signal Input  
VOUT3  
LX3  
WDOG_RST  
INT  
V
OUT3  
Signal Output  
RTN3  
VIO  
PGND  
AGND  
AVIN_FILT  
Copyright © 2019 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation.  
DS5800-00 November 2019  
www.richtek.com  
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