The MAX1697UEUT+T is a monolithic, CMOS inverting charge pump with shutdown function in 6 pin SOT-23 package. This charge pump voltage inverter accepts an input voltage ranging from 1.4V to 5.5V at TA = +25°C. It has an ultra low 12ohm output resistance which permits loads of up to 60mA with maximum efficiency. The MAX1697U is available with operating frequencies of 250KHz which allows optimization of supply current or external component size. Its small external components and micropower shutdown mode make this device ideal for both battery powered and board level voltage conversion applications. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a negative supply from a 5V or 3.3V logic supply to power analogue circuitry. The MAX1697U is used in small LCD panels, GaAsFET bias supplies and battery operated equipment.
Voltage conversion efficiency of 99.9% at IOUT = 0, TA = +25°C
Operating temperature range from -40°C to 85°C
EMI friendly ultra small charge pump
Supply current is 1800μA and shutdown supply current is 0.002μA at TA = +25°C
Start-up current limited
Slew rate limited to reduce EMI
Output resistance is 12ohm at TA = +25°C, IOUT = 60mA
(EN)
