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MAX710 PDF预览

MAX710

更新时间: 2024-12-01 14:58:19
品牌 Logo 应用领域
亚德诺 - ADI DC-DC转换器
页数 文件大小 规格书
12页 301K
描述
3.3V/5V或可调、升/降压型DC-DC转换器

MAX710 数据手册

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EVALUATION KIT AVAILABLE  
MAX710/MAX711  
3.3V/5V or Adjustable,  
Step-Up/Down DC-DC Converters  
_______________General Description  
____________________________Features  
Step-Up/Down Voltage Conversion  
+1.8V to +11V Input Range  
The MAX710/MAX711 integrate a step-up DC-DC con-  
verter with a linear regulator to provide step-up/down  
voltage conversion. They are optimized for battery  
applications where the input varies above and below  
the regulated output voltage. They have an input range  
from +1.8V to +11V. Typical efficiency when boosting  
battery inputs is 85%.  
Output:  
5V/250mA at V = 1.8V  
IN  
5V/500mA at V = 3.6V  
IN  
No External FETs Required  
Load Disconnected from Input in Shutdown  
Battery Drain:  
The MAX710/MAX711 can be configured for minimum  
noise or optimum efficiency. Shutdown control turns off  
the part completely, disconnecting the input from the  
output (I  
= 0.2µA). Standby control turns off only  
SHDN  
200µA No-Load (V = 4V)  
IN  
7µA in Standby  
0.2µA when Off  
the step-up converter and leaves the low-power linear  
regulator active (I = 7µA).  
Q
The MAX710 has a preset 3.3V or 5V output voltage.  
The MAX711 has an adjustable output that can be set  
from +2.7V to +5.5V with two resistors. Both devices  
come in 16-pin narrow SO packages.  
Low-Noise and High-Efficiency Modes  
________________________Applications  
Single-Cell, Lithium-Powered Portable Devices  
Digital Cameras  
______________Ordering Information  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
Dice  
MAX710C/D  
MAX710ESE  
MAX711C/D  
MAX711ESE  
2- to 4-Cell AA Alkaline Hand-Held Equipment  
3.3V and Other Low-Voltage Systems  
-40°C to +85°C  
0°C to +70°C  
16 Narrow SO  
Dice  
-40°C to +85°C  
16 Narrow SO  
2-, 3-, and 4-Cell Battery-Powered Equipment  
Battery-Powered Devices with AC Input Adapters  
__________Typical Operating Circuit  
__________________Pin Configuration  
+1.8V TO +11V  
INPUT  
TOP VIEW  
C1  
N/E  
LBO  
L1  
LBI+  
LX  
PGND  
ILIM  
1
2
3
4
5
6
7
8
16 LX  
ON  
15 PGND  
14 GND  
13 REF  
12 PS  
OFF  
ON  
LX  
SHDN  
STBY  
MAX710  
C2  
STBY  
3.3V  
SHDN  
STBY  
3/5 (FB)  
N/E  
MAX710  
MAX711  
PS  
5V  
3/5  
OUTPUT  
3.3V/5V  
OUT  
11 LBI+  
10 LBI-  
C4  
LBI-  
LBO  
9
OUT  
REF PGND GND ILIM  
C3  
0.1µF  
SO  
( ) IS FOR THE MAX711.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
19-1254; Rev 0; 7/97  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  

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