LMC7660 Datasheet | National Semiconductor

Description The LMC7660 is a CMOS voltage converter capable of converting a positive voltage in the range of +1.5V to +10V to the corresponding negative voltage of - 1.5V to - 10V. The LMC7660 is a pin-for-pin replacement for the industry-standard 7660. The converter features : operation over full temperature and voltage range without need for an external diode, low quiescent current, and high power efficiency. The LMC7660 uses its built-in oscillator to switch 4 power MOS switches and charge two inexpensive electrolytic capacitors. Features n Operation over full temperature and voltage range without an external diode n Low supply current, 200 µA max n Pin-for-pin replacement for the 7660 n Wide operating range 1.5V to 10V n 97% Voltage Conversion Efficiency n 95% Power Conversion Efficiency n Easy to use, only 2 external ponents n Extended temperature range n Narrow SO-8 Package Block Diagram DS009136-1 Pin Configuration DS009136-2 Ordering Information Package Temperature Range Industrial - 40˚C to +85˚C 8-Lead Molded DIP 8-Lead Molded Small Outline LMC7660IN LMC7660IM N08E M08A NSC Drawing © 1997 National Semiconductor Corporation DS009136 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Input Voltage on Pin 6, 7 (Note 2) 10.5V - 0.3V to (V + 0.3V) for V+ < 5.5V + (V - 5.5V) to (V+ + 0.3V) for V+ > 5.5V 20 µA Continuous (Note 4) + Current into Pin 6 (Note 2) Output Short Circuit Duration (V+ ≤ 5.5V) Power Dissipation (Note 3) Dual-In-Line Package Surface-Mount Package TJ Max (Note 3) θJA (Note 3) Dual-In-Line Package Surface-Mount Package Storage Temp. Range Lead Temperature (Soldering, 5 sec.) ESD Tolerance (Note 7) 1.4W 0.6W 150˚C 90˚C/W 160˚C/W - 65˚C ≤ T ≤ 150˚C 260˚C ± 2000V Electrical Characteristics Symbol Parameter LMC7660IN/ Conditions Typ LMC7660IM Limit (Note 5) Is V+H V+L...