ADM660AR

Product Summary

The ADM660AR is a charge-pump voltage converter that can be used to either invert the input supply voltage giving VOUT = -VIN or double it (ADM660 only) giving VOUT = 2 × VIN. Input voltages ranging from +1.5 V to +7 V can be inverted into a negative -1.5 V to -7 V output supply. This inverting scheme is ideal for generating a negative rail in single power supply systems. Only two small external capacitors are needed for the charge pump. Output currents up to 50 mA with greater than 90% efficiency are achievable, while 100 mA achieves greater than 80% efficiency. The applications of the ADM660AR include Handheld Instruments portable computers, remote data acquisition, Op Amp power supplies.

Parametrics

ADM660AR absolute maximum ratings: (1)Input Voltage (V+ to GND, GND to OUT): +7.5 V; (2)LV Input Voltage: (OUT – 0.3 V) to (V+, +0.3 V); (3)FC and OSC Input Voltage: (OUT – 0.3 V) or (V+, –6 V) to (V+, +0.3 V); (4)OUT, V+ Output Current (Continuous): 120 mA; (5)Output Short Circuit Duration to GND: 10 secs; (6)Power Dissipation, N-8: 625 mW (Derate 8.3 mW/℃ above +50℃); θJA, Thermal Impedance: 120℃/W; (7)Power Dissipation R-8: 450 mW (Derate 6 mW/℃ above +50℃); θJA, Thermal Impedance: 170℃/W; (8)Power Dissipation RU-16: 500 mW (Derate 6 mW/℃ above +50℃); θJA, Thermal Impedance: 158℃/W; (9)Operating Temperature Range Industrial (A Version): -40℃ to +85℃; Storage Temperature Range: -65℃ to +150℃; (10)Lead Temperature Range (Soldering 10 sec): +300℃; Vapor Phase (60 sec): +215℃; Infrared (15 sec): +220℃; (11)ESD Rating: >2000 V.

Features

ADM660AR features: (1)Inverts or doubles input supply voltage; (2)100 mA Output Current; (3)Shutdown Function (ADM8660); (4)2.2 μF or 10 μF Capacitors; (5)0.3 V Drop at 30 mA Load; (6)+1.5 V to +7 V Supply; (7)Low Power CMOS: 600 μA Quiescent Current; (8)Selectable Charge Pump Frequency (25 kHz/120 kHz); (9)Pin Compatible Upgrade for MAX660, MAX665, ICL7660; (10)Available in 16-Lead TSSOP Package.

Diagrams