Description

This article describes TC660EOA713, an IC Chip categorized as a DC-to-DC voltage converter capable of generating a negative voltage supply with a maximum 100mA load from a positive voltage input within 1.5V to 5.5V. The voltage supply is stored on an undedicated capacitor and transferred into an output reservoir capacitor. It also features a low power consumption of 200μA @ 5V IN and only requires two external capacitors. Moreover, tuning the external capacitor from OSC pin can lower the frequency to a minimum of 10 kHz and raising the frequency control pin (FC) to V+ can increase it to a maximum of 90 kHz, thereby optimizing capacitor size, quiescent current, and output voltage ripple frequency.

Specifications and features

• Pin Compatible with TC7660
• High Output Current ..................................... 100mA
• Converts (+1.5V to 5.5V) to (– 1.5V to – 5.5V)
• Power Efficiency @100mA......................... 88% typ
• Low Power Consumption ................200µA @ 5VIN
• Low Cost and Easy to Use
  — Only Two External Capacitors Required
• Selectable Oscillator Frequency ....... 10kHz/90kHz
• ESD Protection ...................................................4kV

Application Scenarios

The potential uses for TC660EOA713 are many and varied. It can be applied in
- Laptop Computers
- µP Based Controllers
- Process Instrumentation
- Automotive Instruments.

Comparison

• Requires only two external capacitors
• Pin Compatible with TC7660

• Caters only to negative voltage supply generation
• Cannot fulfill high-power conversion needs