NCP7662P

Overview

The NCP7662P is an inductorless voltage converter manufactured by onsemi, designed for applications requiring compact power solutions without magnetic components. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers a fixed output voltage of -3 V. The device provides an output current capability of up to 100 mA, making it suitable for biasing negative supply rails in low-power systems. It utilizes a charge-pump topology to achieve efficient voltage inversion.

Feature Summary

• Inductorless design eliminates the need for bulky magnetic components, enabling significant reduction in printed circuit board area.
• Fixed -3 V output simplifies system design for applications requiring negative voltage rails.
• Capable of sourcing sufficient current to support peripheral biasing needs in portable electronics.

Applications

• Biasing operational amplifiers in single-supply systems
• Powering LCD bias voltages in mobile devices
• Providing negative supply for analog signal conditioning circuits

Procurement Notes

Verify RoHS compliance status as some sources indicate non-compliance. Confirm package availability and lead times with authorized distributors. Ensure input voltage does not exceed maximum ratings during operation. Check datasheet for thermal considerations related to output current limits.

Selection Notes

Select this component when space constraints prohibit the use of inductors. Ideal for generating small negative voltages from a positive single supply. Consider output current requirements carefully as performance may degrade at higher loads. Compare with other charge-pump alternatives if variable output voltages are needed.

Part Context

Part of onsemi's portfolio of power management integrated circuits focused on efficient voltage conversion. The NCP7662 series addresses the need for simple, cost-effective negative voltage generation in consumer and industrial electronics where size and simplicity are critical factors.

Replacement Considerations

Check for direct pin-compatible substitutes within the same family or from other manufacturers offering similar inductorless topologies. Verify that replacement parts meet the same electrical specifications regarding input voltage range and output current capabilities.

FAQ

What is the typical efficiency of the NCP7662P?

Efficiency depends on load current and input voltage; refer to the datasheet graphs for specific performance curves under various operating conditions.

Does the NCP7662P require external capacitors?

Yes, external flying and output capacitors are required for proper operation and stability, as specified in the application circuit section of the datasheet.