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MAX1963A

更新时间： 2024-11-24 05:00:27
品牌 Logo 应用领域
美信 - MAXIM 稳压器
页数 文件大小 规格书
15页 364K
描述
Low-Input-Voltage, 300mA LDO Regulators with RESET in SOT and TDFN

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MAX1963A 数据手册

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19-3684; Rev 0; 5/05  
Low-Input-Voltage, 300mA LDO Regulators  
with RESET in SOT and TDFN  
General Description  
Features  
The MAX1963A/MAX1976A low-dropout linear regula-  
tors operate from a +1.62V to +3.6V supply and deliver  
a guaranteed 300mA continuous load current with a low  
100mV dropout. The high-accuracy ( 0.ꢀ5% output  
voltage is preset to an internally trimmed voltage in the  
+0.7ꢀV to +3.0V range. An active-low, open-drain reset  
output remains asserted for at least 2.2ms (MAX1963A%  
or 70ms (MAX1976A% after the output voltage reaches  
regulation. These devices are offered in thin SOT23 and  
thin DFN packages. An internal pMOS pass transistor  
allows the low supply current to remain independent of  
load and dropout voltage, making these devices ideal for  
portable battery-powered equipment.  
♦ Low 1.62V Minimum Input Voltage  
♦ Guaranteed 300mA Output Current  
♦
2.ꢀ5 Aꢁꢁuraꢁc Oꢂer LoadꢃLineꢃ/emp  
♦ Low 100mV Dropout at 300mA Load  
♦ 2.2ms (MAX1963A) or 70ms (MAX1976A)  
RESET Output Flag  
♦ Supplc Current Independent of Load and  
Dropout Voltage  
♦ Logiꢁ-Controlled Shutdown  
♦ /hermal-Oꢂerload and Short-Cirꢁuit Proteꢁtion  
♦ Preset Output Voltages (0.7ꢀV to 3.0V)  
♦ /inc 6-Pin /hin SO/23 Paꢁkage (<1.1mm High)  
♦ /DFN Paꢁkage (<0.8mm High)  
Applications  
Notebook/Handheld Computers  
Cellular/Smart/PDA Phones  
DSC, CD/MP3 Players  
PCMCIA Cards  
Ordering Information  
PAR/*  
/EMP RANGE PIN-PACKAGE  
MAX1963AEZT_ _ _-T -40°C to +8ꢀ°C 6 Thin SOT23-6  
MAX1963AETT_ _ _-T -40°C to +8ꢀ°C 6 TDFN-6 3mm x 3mm  
MAX1963AETA_ _ _-T -40°C to +8ꢀ°C 8 TDFN-8 2mm x 2mm  
MAX1976AEZT_ _ _-T -40°C to +8ꢀ°C 6 Thin SOT23-6  
MAX1976AETT_ _ _-T -40°C to +8ꢀ°C 6 TDFN-6 3mm x 3mm  
MAX1976AETA_ _ _-T -40°C to +8ꢀ°C 8 TDFN-8 2mm x 2mm  
Pin Configurations  
TOP VIEW  
8
7
6
5
1
2
3
6
5
4
OUT  
I.C.  
IN  
GND  
MAX1963A  
MAX1976A  
*Insert the desired three-digit suffix (see the Selector Guide) into  
the blanks to complete the part number. Contact the factory for  
other output voltages.  
MAX1963A  
MAX1976A  
SHDN  
RESET  
1
2
3
4
Typical Operating Circuit  
/HIN SO/23  
/DFN  
2mm x 2mm  
INPUT  
1.62V TO 3.6V  
OUTPUT  
0.75V TO 3.0V  
UP TO  
300mA  
IN  
OUT  
6
5
4
3
C
IN  
1µF  
LOGIC  
SUPPLY  
C
4.7µF  
OUT  
MAX1963A  
MAX1976A  
MAX1963A  
MAX1976A  
100kΩ  
ON  
RESET  
SHDN  
TO µC  
1
2
OFF  
GND  
/DFN  
3mm x 3mm  
Selector Guide appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...15

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