Product Summary

The LMC7660IM 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 LMC7660IM 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 LMC7660IM uses its built-in oscillator to switch 4 power MOS switches and charge two inexpensive electrolytic capacitors.

Parametrics

LMC7660IM absolute maximum ratings: (1)Supply Voltage: 10.5V; (2)Input Voltage on Pin 6, 7: -0.3V to (V+ + 0.3V) for V+ < 5.5V; (V+- 5.5V) to (V++ 0.3V) for V+ > 5.5V; (3)Current into Pin 6: 20 μA; (4)Output Short Circuit Duration (V+ ≤ 5.5V): Continuous; (5)Power Dissipation: 1.4W; (6)TJ Max: 150℃.

Features

LMC7660IM features: (1)Operation over full temperature and voltage range without an external diode; (2)Low supply current, 200 μA max; (3)Pin-for-pin replacement for the 7660; (4)Wide operating range 1.5V to 10V; (5)97% Voltage Conversion Efficiency; (6)95% Power Conversion Efficiency; (7)Easy to use, only 2 external components; (8)Extended temperature range; (9)Narrow SO-8 Package.

Diagrams

LMC7660IM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LMC7660IM
LMC7660IM
National Semiconductor (TI)
Charge Pumps
Data Sheet
0-95: $0.47
95-190: $0.41
190-285: $0.36
285-570: $0.32
LMC7660IM/NOPB
LMC7660IM/NOPB
National Semiconductor (TI)
Charge Pumps Switched Cap Vltg Converter
Data Sheet
0-1: $0.59
1-25: $0.47
25-100: $0.41
100-250: $0.36
LMC7660IMX/NOPB
LMC7660IMX/NOPB
National Semiconductor (TI)
Charge Pumps SWITCHED CAPACITOR VOLTAGE CONVERTER
Data Sheet
0-1: $0.64
1-25: $0.51
25-100: $0.45
100-250: $0.40
LMC7660IMX
LMC7660IMX
National Semiconductor (TI)
Charge Pumps
Data Sheet
0-2500: $0.30
2500-5000: $0.29
5000-10000: $0.21