The SGM2066 is a negative output charge pump which has an inside adjustable regulator. The input voltage range is from 2.7V to 5.5V and the unregulated output equals to -VIN. For the regulated output of the SGM2066, the range is from -1.5V to -5V.
The inrush current of the SGM2066 can be decreased by the internal soft-start circuit. For application case, four ceramic capacitors and no inductor are required, and it can be used for supplying optical modules, bias of RF amplifiers and sensors.
The SGM2066 is available in a Green TDFN-2×2-8AL package. It operates over an operating temperature range of -40℃ to +125℃.
Operating Input Voltage Range: 2.7V to 5.5V
Output Current Limit: 250mA (TYP)
Inverter Output Impedance: 2.3Ω at VIN = 5.5V
Quiescent Current: 410μA (TYP)
Low Dropout Voltage: 34mV (TYP) at IOUT = 100mA, VOUT = -5V
Low Noise: 28μVRMS (TYP) at VIN = 5V
Current Limit and Thermal Protection
Shutdown Supply Current: 0.1μA (TYP)
-40℃ to +125℃ Operating Temperature Range
Available in a Green TDFN-2×2-8AL Package
Optical Applications
Biasing of the Amplifier for RF
Supplying Sensors in Portable Devices
Cellular Telephones
Portable Equipment
