NCP81101MNTWG

Introduction

The NCP81101MNTWG is a Particle Mesh-enabled Highly Integrated Power Management IC (PMIC) specifically designed to be used as a DC-DC switching controller. It is suitable for most low power applications and is optimized for low voltage battery operating conditions.

Application

The NCP81101MNTWG can be used in a variety of battery-powered applications such as wearables, medical devices, IoT, PoE and home appliances. It is particularly suitable for applications with slow transient responses due its wide input voltage range and integrated compensation for power inductors.

The device also offers high level integration and excellent efficiency through its full digital control capabilities, including adjustable reference voltage, large output ripple and transient response time reduction features. Moreover, it supports a wide range of voltage transducers and protection features, such as over-voltage, under-voltage and maximum current protections.

Working Principle

The PIN of NCP81101MNTWG works on the principle of current-mode control which makes precise tracking of the output voltage possible. This allows the device to adjust its current limits more precisely when the load changes in order to increase the efficiency of the circuit.

The NCP81101MNTWG integrates two MOSFETs together, which are used as low side and high side switches to switch the main supply or an inductive load like a transformer or an inductor. The current in it is also continuously monitored and sensed by an on-chip current sense amplifier. This is used for setting accurate current limits so that the current delivered to the load does not exceed these limits.

The on-chip digital control circuitry is used to regulate the output voltage by monitoring the output voltage through an on-chip feedback network.

The device also includes a wide range of protection features to ensure reliable operation in the event of low voltage, excessive currents, or other fault conditions.

Conclusion

The NCP81101MNTWG is an excellent Particle Mesh-enabled highly integrated power management IC specificallu designed as a DC-DC switching controller. It is suitable for most low power applications and optimized for low battery operating conditions. It supports high level of integration, adjustable reference voltage, large output ripple, fast transient response time, voltage transducers and a wide range of protection features. It works on the principle of current-mode control and is an excellent choice for battery powered applications such as wearables, medical devices, IoT, PoE and home appliances.