反转输入电源电压25毫安输出电流CXUS65175不受调节的电荷泵电压逆变器99%的电压转换效率用于手机小液晶面板便携式设备

CXUS65175是一种不受调节的电荷泵电压逆变器，可用于从正输入产生负电源。从+1.8V到+5V的输入电压可以转换成-1.8V到-5V的输出电源。该器件是电池供电和板级电压转换应用的理想选择，在3.3V电源下的典型工作电流为0.45mA。CXUS65175可以提供25毫安的输出电流，电压降为250毫伏。零件有过温保护。应用包括手机、掌上电脑和其他便携式设备。这些设备有8针标准操作程序包。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXUS65175 is an unregulated charge-pump voltage inverter which may be used to generate a negative supply from positive input. Input voltages ranging from +1.8V to +5V can be inverted into a -1.8V to -5V output supply. The devices is ideal for both battery- powered and board level voltage conversion applications with a typical operating current of 0.45mA at 3.3V supply. The CXUS65175 can deliver 25mA output current with a voltage drop of 250mV. The parts are over -temperature protected. Applications include cell phones, PDAs, and other portable equipment. The devices is available in 8-pin SOP Package.

   产品特点 返回TOP

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„ Inverts Input Supply Voltage 

„ 25mA Output Current with a Voltage Drop of 250mV 

„ 0.45mA Quiescent Current at 3.3V Supply Voltage 

„ 99% Voltage Conversion Efficiency 

„ 1.8V to 5V operating range 

„ Require Only Two Capacitors 

„ Over-Temperature Protection 

„ 8-Pin SOP Package

   应用范围 返回TOP

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Cell Phone 

„ Small LCD Panels 

„ Portable Equipment 

„ Handy-Terminals, PDAs 

„ Battery-Operated Equipment

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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Charge   Pump and Current Source
Part   NO.	Vin(V) min.	Vin(V) max.	IOUT (mA)	FOSC (kHz)	VOUT (V)	LED  Number	Eff. (%)	Note	Package
CXUS65171	3	5.5	600	250	1x/2x	1	--	Flash LEDdriver,Flash/Torch/SHDN	TDFN3X3-10
CXUS65172	2.7	5.5	80	250	1x/2x	4	90	4-CH LED in Parallel,PWM control16  levels dimming control	TDFN2.5X2.5-10 TQFN3X3-16
CXUS65173	2.7	5	90	1000	4.5/5	--	88	EN,GND,VOUT,C+,VIN,C-,Boost	TSOT-23-6/TDFN2X2-6
CXUS65174	1.8	5	60	270	-VIN	--	90	IN,EN,GND,C-,C+,OUT,Inverting	SOT-23-6/TDFN2X2-6
CXUS65175	1.8	5	60	270	-VIN	--	90	NC,CP+,GND,CP-,OUT,NC,NC,IN	SOP-8
CXUS65176	8	24	10	350	1.5x	--	--	PG,D_CAP	MSOP-8
CXUS65177	8	24	10	370	1.5x	--	--	PG,D_CAP,12V,ONx,DRIVERx	TQFN3X3-20
CXUS65178	4.5	5.5	14	--	2x	--	--	2-NMOSFET driver,20mA discharging	TQFN3X3-20