SGM3207 Unregulated 60mA Charge Pump Voltage Inverter
■The SGM3207 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 SGM3207 can deliver a maximum output current of 60mA with a typical conversion efficiency of greater than 85% over a wide output current range. The fixed switching frequency is 19kHz.
■The SGM3207 is available in SOT-23-5 package. It operates over an ambient temperature range of -40°C to +85°C.
●FEATURES
■Inverts Input Supply Voltage
■Up to 60mA Output Current
■Input Voltage Range from 1.4V to 5.5V
■Quiescent Current: 72μA (TYP)
■Integrated Active Schottky Diode for Start-Up into Load
■-40°C to +85°C Operating Temperature Range
■Available in Green SOT-23-5 Package
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Datasheet |
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Please see the document for details |
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SOT-23-5 |
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English Chinese Chinese and English Japanese |
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2014/1/13 |
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REV.A |
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590 KB |
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