LTC3634IFE

Series:	*
Part Status:	Obsolete

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• Introduction

The LTC3634IFE is a highly integrated, low-cost, power management solution for charging and powering applications, such as battery packs, that require multiple voltage rails. This integrated device combines a low-noise boost converter (with an integrated FET), plus two 200mA low dropout linear regulators, in a single package. The boost converter can operate from a low input voltage and provides multiple output voltage options up to 7V. The two integrated LDO regulators provide fixed 5V and 3.3V output options.

• LTC3634IFE Application Field

The LTC3634IFE is designed to meet wide range of battery related applications and is ideal for use in consumer systems, such as notebook PCs, cell phones, and digital cameras. In addition, the device is ideally suited for low power, cost-sensitive support applications requiring three regulated output voltages.The LTC3634IFE is designed to meet wide range of battery related applications and is ideal for use in consumer systems, such as notebook PCs, cell phones, and digital cameras. It is also suitable for professional power management and supply applications, including desktop Computers, industrial control boards and automotive applications.

• LTC3634IFE Working Principle

The LTC3634IFE is a highly integrated, low-noise, low-cost power management solution for battery charging and powering applications. It features an integrated high-efficiency boost converter and two high-performance, low dropout linear regulators. When the battery is not being charged, the boost converter steps up the input voltage to a higher level, which is ideal for powering the system. The integrated boost converter operates in the constant voltage mode and provides multiple output voltage options up to 7V. The two integrated LDO regulators provide fixed 5V and 3.3V output options.The LTC3634IFE also features undervoltage lockout (UVLO) and input overvoltage protection (IOV), as well as an integrated reverse current protection (RCP) circuit to protect the boost converter. The device also has integrated overtemperature protection (OTP) and soft-start circuitry to minimize inrush current.

• Conclusion

In conclusion, the LTC3634IFE represents a highly integrated, low-cost, power management solution for charging and powering applications, such as battery packs, that require multiple voltage rails. The device features an integrated high-efficiency boost converter and two high-performance, low dropout linear regulators. It offers multiple output voltage options up to 7V, plus UVLO and IOV protection. In addition, the LTC3634IFE also offers integrated reverse current protection (RCP) circuit and overtemperature protection (OTP) features. The LTC3634IFE is suitable for many consumer, professional power management and supply applications, including desktop Computers, industrial control boards, automotive applications and more.

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