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RT6575E PDF预览

RT6575E

更新时间: 2024-02-29 07:23:34
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
23页 256K
描述
暂无描述

RT6575E 技术参数

Status:ActiveVs (typ) (V):12
Vin (min) (V):5Vin (max) (V):25
Vout (min) (V):2Vout (max) (V):5.5
Preset Vout (V):Output Adj. Method:Resistor
Accuracy (+/- %):1Freq (typ) (kHz):300;355
Freq (min) (kHz):240;280Freq (max) (kHz):360;430
Iq (typ) (mA):0.42Features:ACOT Control;Adjustable Current Limit;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;OCP;OVP;PSM;Power Good;UVP
Package Type:WQFN3x3-20

RT6575E 数据手册

 浏览型号RT6575E的Datasheet PDF文件第2页浏览型号RT6575E的Datasheet PDF文件第3页浏览型号RT6575E的Datasheet PDF文件第4页浏览型号RT6575E的Datasheet PDF文件第5页浏览型号RT6575E的Datasheet PDF文件第6页浏览型号RT6575E的Datasheet PDF文件第7页 
®
RT6575E  
Dual-Channel Synchronous DC-DC Step-Down Controller  
with 5V/3.3V LDOs  
General Description  
Features  
Support Connected Standby Mode for Ultrabook  
CCRCOT Control with 100ns Load Step Response  
PWM Maximum Duty Ratio > 98%  
5V to 25V Input Voltage Range  
Dual Adjustable Output :  
The RT6575E is a dual-channel step-down controller  
generating supply voltages for battery-powered systems.  
It includes two Pulse-Width Modulation (PWM) controllers  
adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear  
regulators. Each linear regulator provides up to 100mA  
output current and 3.3V linear regulator provides 1%  
accuracy under 35mA. The RT6575E has an oscillator  
output to drive the external charge pump application. Other  
features include on-board power-up sequencing, a power-  
good output, internal soft-start, and soft-discharge output  
that prevents negative voltage during shutdown.  
CH1 : 2V to 5.5V  
CH2 : 2V to 4V  
5V/3.3V LDOs with 100mA Output Current  
1% Accuracy on 3.3V LDO Output  
Oscillator Driving Output for Charge Pump  
Application  
Internal Frequency Setting  
A constant current ripple PWM control scheme operates  
without sense resistors and provides 100ns response to  
load transient. For maximizing power efficiency, the  
RT6575E automatically switches to the diode-emulation  
mode in light load applications. The RT6575E is available  
in the WQFN-20L 3x3 package.  
300kHz/355kHz (CH1/CH2)  
Internal Soft-Start and Soft-Discharge  
4700ppm/°C RDS(ON) Current Sensing  
Independent Switcher Enable Control  
Built-In OVP/UVP/OCP/OTP  
Non-Latch UVLO  
Power Good Indicator  
RoHS Compliant and Halogen Free  
Simplified Application Circuit  
V
IN  
UGATE2  
VIN  
RT6575E  
BOOT2  
UGATE1  
BOOT1  
PHASE2  
LGATE2  
V
OUT2  
V
OUT1  
PHASE1  
LGATE1  
FB2  
CS1  
CS2  
BYP1  
FB1  
LDO5  
5V  
Channel 1 Enable  
Channel 2 Enable  
EN1  
PGOOD  
LDO3  
icator  
PGOOD Ind  
EN2  
3.3V  
VCLK  
GND  
Copyright 2018 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS6575E-00 August 2018  
www.richtek.com  
1

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