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MAX77813

更新时间： 2024-11-05 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 升压转换器
页数 文件大小 规格书
33页 1572K
描述
5.5V输入、2A高效降压-升压转换器

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MAX77813 数据手册

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Evaluation Kit  
Available  
Design  
Resources  
Tools  
and Models  
Support  
Click here to ask an associate for production status of specific part numbers.  
5.5V Input, 2A, High-Efficiency  
Buck-Boost Converter  
MAX77813  
General Description  
Features and Benefits  
The MAX77813 is a high-efficiency step-up/step-down  
(buck-boost) converter targeted for single-cell Li+/Li-ion  
battery powered applications. The device maintains a  
regulated output voltage from 2.6V to 5.14V across an  
input voltage range of 2.3V to 5.5V. The device supports  
up to 2A of output current in boost mode and up to 3A in  
buck mode.  
● V Range: 2.30V to 5.5V  
IN  
● V  
Range: 2.60V to 5.14V  
OUT  
2
(I C Programmable in 20mV Steps)  
● Up to 2A Output Current in Boost Mode  
(V = 3.0V, V  
= 3.4V, ILIM = High)  
IN  
OUT  
● Up to 3A Output Current in Buck Mode (ILIM = High)  
● Up to 97% Peak Efficiency  
The device seamlessly transitions between buck and  
boost modes. A unique control algorithm allows high-  
efficiency, outstanding load, and line transient response.  
● SKIP Mode for Optimal Light Load Efficiency  
● 55µA (Typ) Low Quiescent Current  
Dedicated enable and power-OK pins allow simple hard-  
2
● 3.4MHz High Speed I C Serial Interface  
2
ware control. An I C serial interface is optionally used for  
● Inductor Switching Current Limit Selection Pin  
● Power-OK Output  
dynamic voltage scaling, system power optimization, and  
fault read-back. The device supports two inductor switching  
current limit options selected by the ILIM pin.  
● 2.5MHz Switching Frequency  
The MAX77813 is available in a 20-bump, 2.13mm x  
1.83mm wafer-level package (WLP).  
● Protection Features  
• Soft-Start  
• Thermal Shutdown  
• Overvoltage Protection  
• Overcurrent Protection  
Applications  
● Single-Cell Li+/Li-ion Battery Powered Devices  
● Handheld Scanners, Mobile Payment Terminals,  
Security Cameras  
● 2.13mm x 1.83mm, 20-Bump WLP  
● AR/VR Headsets  
Ordering Information appears at end of data sheet.  
Typical Application Circuit  
1µH  
MAX77813  
BOOST TO BUCK  
LINE TRANSIENT RESPONSE  
LX1  
IN  
LX2  
IOUT = 1.5A  
VOUT = 3.3V  
OUT  
DC INPUT  
V
OUT  
3.4V  
2.3V TO 5.5V  
2.6V TO 5.14V  
2A (BOOST MODE)  
3A (BUCK MODE)  
10μF  
47μF  
V
SYS  
2.9V  
FB  
500mV/di v  
20mV/div  
VIN  
1μF  
PGND  
BOO ST  
MO DE  
BOO ST  
MO DE  
BUCK MODE  
V
IO  
VOUT  
SDA  
SCL  
EN  
SERIAL HOST  
POK  
ILIM  
POWER-OK  
CURRENT LIMIT  
SELECT  
ENABLE  
100µs/di v  
HIGH-EFFICIENCY BUCK-BOOST CONVERTER  
2
WITH OPTIONAL I C CONTROL IN TINY 20-BUMP WLP  
19-8238; Rev 5; 1/23  
©
2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 © 2023 Analog Devices, Inc. All rights reserved.  
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