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MAX1759

更新时间： 2024-11-14 22:57:59
品牌 Logo 应用领域
美信 - MAXIM 泵
页数 文件大小 规格书
12页 191K
描述
Buck/Boost Regulating Charge Pump in レMAX

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中文翻译

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MAX1759 数据手册

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19-1600; Rev 0; 1/00  
Buck/Boost Regulating  
Charge Pump in µMAX  
General Description  
Features  
The MAX1759 is a buck/boost regulating charge pump  
that generates a regulated output voltage from a single  
lithium-ion (Li+) cell, or two or three NiMH or alkaline  
cells for small hand-held portable equipment. The  
MAX1759 operates over a wide +1.6V to +5.5V input  
voltage range and generates a fixed 3.3V or adjustable  
ꢀ Regulated Output Voltage (Fixed 3.3V or  
Adjustable 2.5V to 5.5V)  
ꢀ 100mA Guaranteed Output Current  
ꢀ +1.6V to +5.5V Input Voltage Range  
ꢀ Low 50µA Quiescent Supply Current  
ꢀ 1µA Shutdown Mode  
™)  
(2.5V to 5.5V) output (Dual Mode . Maxim’s unique  
charge-pump architecture allows the input voltage to be  
higher or lower than the regulated output voltage.  
Despite its high 1.5MHz operating frequency, the  
MAX1759 maintains low 50µA quiescent supply current.  
ꢀ Load Disconnected from Input in Shutdown  
ꢀ High 1.5MHz Operating Frequency  
ꢀ Uses Small Ceramic Capacitors  
ꢀ Short-Circuit Protection and Thermal Shutdown  
ꢀ Small 10-Pin µMAX Package  
Designed to be an extremely compact buck/boost con-  
verter, this device requires only three small ceramic  
capacitors to build a complete DC-DC converter capa-  
ble of generating a guaranteed 100mA (min) output  
current from a +2.5V input. For added flexibility, the  
MAX1759 also includes an open-drain power-OK  
(POK) output that signals when the output voltage is in  
regulation.  
The MAX1759 is available in a space-saving 10-pin  
µMAX package that is 1.09mm high and half the size of  
an 8-pin SO.  
Ordering Information  
Applications  
PART  
TEMP. RANGE  
PIN-PACKAGE  
Li+ Battery-Powered Applications  
MAX1759EUB  
-40°C to +85°C  
10 µMAX  
Miniature Equipment  
Backup Battery Boost Converters  
Translators  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
C
X
IN  
OUT  
3.3V AT 100mA  
CXN  
CXP  
OUT  
+1.6V TO +5.5V  
POK  
SHDN  
IN  
1
2
3
4
5
10 FB  
IN  
9
8
7
6
OUT  
C
C
OUT  
IN  
MAX1759  
CXP  
MAX1759  
IN  
CXN  
PGND  
ON  
GND  
POK  
POWER OK  
SHDN  
OFF  
FB GND PGND  
µMAX  
Dual Mode is a trademark of Maxim Integrated Products.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  
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