LTM8061IV-8.2#PBF

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The LTM8061IV-8.2#PBF is a fully integrated power management IC for battery charging and power supply applications. It is a high efficiency, high-current, synchronous step-down DC-DC regulator supporting up to 20V input, 1.5A maximum output current. The device provides supervision, power supply sequencing, and fault protection for power supplies and battery packs.

Product Description

The LTM8061IV-8.2#PBF is an integrated power management IC designed to deliver high current and high efficiency in a compact form factor. The device is suitable for battery-powered consumer, industrial and medical applications. It integrates an 80V synchronous P-channel and N-channel MOSFET, programmable synchronous step-down controller, power-on reset, overvoltage and thermal protection. The device offers a wide input voltage range from 4.5V to 20V and a high switching frequency of 2.25MHz. An external reference voltage is used to program the output voltage from 0.59V to 4.45V. The LTM8061IV-8.2#PBF also features a power fail detection circuit and current limit protection to protect the battery from overcharging.

Product Applications

The LTM8061IV-8.2#PBF is widely used in portable battery-powered equipment and wearable technologies. It can be used in consumer mobile applications such as smartphones, tablets, portable gaming devices and GPS systems. The device is also suitable for medical and industrial application, such as blood glucose monitors, blood pressure monitors and industrial IoT applications.

Working Principle

The LTM8061IV-8.2#PBF works in three main phases - enabling, regulating and discharging. In the enabling phase, the device turns on the MOSFETs, allowing current to flow from the main power source, through the device and to the load. During the regulating phase, the device monitors the output voltage of the load and stores the information in a non-volatile memory. The device will then adjust the voltage to maintain a steady supply to the load. The discharging phase is initiated when the output voltage drops below a predetermined level, at which point the device will disable the MOSFETs to prevent over-discharging of the battery.

Advantages

The LTM8061IV-8.2#PBF offers high efficiency and high-current power supply in a small form factor. The device features wide input voltage range from 4.5V to 20V, and a high switching frequency of 2.25MHz. An external reference voltage is used to program the output voltage from 0.59V to 4.45V. The device is protected against overvoltage and overtemperature. The device features a power fail detection circuit, overcurrent protection circuit, and reverse-battery protection. The device also includes soft start, pre-bias load, and advanced sequencing for power supply sequencing.

Conclusion

In conclusion, the LTM8061IV-8.2#PBF is an ideal choice for applications that require high current, high efficiency power supplies and battery charging. The device provides reliable operation, with integrated protection features and advanced sequencing. It is suitable for a wide range of applications, including consumer, medical and industrial applications.

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