The CXUS65140 generates an unregulated negative output voltage from an input voltage ranging from 1.4V to 5.5V. The device is typically supplied by a pre-regulated supply rail of 5V or 3.3V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-ion cell can also power them.
Only three external capacitors are required to build a complete DC/DC charge pump inverter. Assembled in a small package, the complete converter can be built on a 50mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The CXUS65140 can deliver a maximum output current of 200mA with a typical conversion efficiency of greater than 80% over a wide output current range.
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产品概述 返回TOP
The CXUS65140 generates an unregulated negative output voltage from an input voltage ranging from 1.4V to 5.5V. The device is typically supplied by a pre-regulated supply rail of 5V or 3.3V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-ion cell can also power them.
Only three external capacitors are required to build a complete DC/DC charge pump inverter. Assembled in a small package, the complete converter can be built on a 50mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The CXUS65140 can deliver a maximum output current of 200mA with a typical conversion efficiency of greater than 80% over a wide output current range.
The CXUS65140 is available in SOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.
产品特点 返回TOP
• Inverts Input Supply Voltage
• Up to 200mA Output Current
• Input Voltage Range from 1.4V to 5.5V
• Quiescent Current: 1.5mA (TYP)
• 950kHz Switching Frequency
• Integrated Active Schottky Diode for Start-Up into Load
• -40℃ to +85℃ Operating Temperature Range
• Available in Green SOT-23-6 Package
应用范围 返回TOP
LCD Bias
GaAs Bias for RF Power Amps
Sensor Supply in Portable Instruments
Bipolar Amplifier Supply
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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电荷泵DC/DC转换器 |
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Product |
CH |
Enable |
VCC(Min) (V) |
VCC(Max) (V) |
VOUT(V) |
IOUT (mA) |
Frequency (kHz) |
Iq(mA) |
SHDN Iq (μA) |
Package |
|
1 |
Y |
2.7 |
5 |
5 |
100 |
750 |
60 |
1 |
SOT-23-6 |
|
|
2 |
Y |
2.7 |
5 |
5 |
500 |
1700 |
70 |
2 |
TDFN-3x3-8L |
|
|
1 |
Y |
1.4 |
5.5 |
-VIN |
200 |
950 |
1500 |
1 |
SOT-23-6 |
|
|
1 |
N |
1.4 |
5.5 |
-VIN |
60 |
47 |
115 |
NA |
SOT-23-5 |
|
