LMC7660IN

Voltage Regulators - DC DC Switching Regulators Overview

The LMC7660IN is a CMOS switched capacitor voltage converter manufactured by Texas Instruments, housed in an 8-pin PDIP package. It operates with an input voltage range of 1.5 V to 10 V and provides a negative output voltage ranging from -1.5 V to -10 V. The device delivers an output current of 20 mA at a switching frequency of 10 kHz. Quiescent supply current is specified at 120 µA. It functions within a temperature range of -40°C to +85°C and includes a shutdown feature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Pin-for-pin replacement for the industry-standard 7660
• Operates over full temperature and voltage range without requiring an external diode
• Utilizes built-in oscillator to switch power MOS switches and charge external capacitors

Voltage Regulators - DC DC Switching Regulators Applications

• Bipolar supply generation for operational amplifiers
• Negative voltage biasing for analog circuits
• Low-power portable instrumentation systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature grade. Ensure the ordering part number matches the required industrial temperature range and lead-free compliance status. Cross-reference the manufacturer's latest datasheet to validate pinout compatibility and electrical specifications before integration into design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a low-cost, single-output negative voltage generator is required for bipolar applications. Consider the 20 mA output current limit and 120 µA quiescent current for power-sensitive designs. Verify that the external capacitor requirements align with space constraints and that the 10 kHz switching frequency does not interfere with sensitive signal paths.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMC7660 series of switched capacitor voltage converters. It is designed as a direct replacement for legacy 7660 devices while offering improved performance characteristics such as lower quiescent current and extended operating temperature ranges suitable for industrial applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LMC7660 serves as a pin-compatible alternative to the standard 7660. Verify electrical parameters against specific application requirements when substituting other charge pump ICs.