LTC3607EMSE#TRPBF

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The LTC3607EMSE#TRPBF is a synchronous step-down DC/DC converter that operates from an input voltage range of 3 V to 40 V and delivers a regulated output voltage of 0.8 V to 10 V with a switching frequency up to 2.25 MHz. It is designed to be used for automotive and industrial applications that require an exceptionally robust and reliable power supply.

Application Field

The LTC3607EMSE#TRPBF is ideal for applications such as the following:

• Battery-operated systems
• Highly efficient point-of-load regulators
• Point-of-load regulators with power sharing
• Industrial digital power systems
• Automotive applications
• Audio power amplifiers

Working Principle

The LTC3607EMSE#TRPBF uses a synchronous buck topology, combined with an external MOSFET and an external Schottky diode, to efficiently convert a wide input voltage range into a regulated output voltage. The internal high-side NMOS and low-side differential MOSFETs provide a simple and cost-effective way to make a synchronous buck regulator, while the external Schottky diode serves as the synchronous rectifier.

The device includes a wide range of features that enable it to perform under a wide array of operating conditions. It includes programmable soft-start, adjustable reference output voltage, current limit protection, and over-temperature protection. The optional external timing capacitor and the enable pin enable power sequencing, while the external Synchronous Rectifier Enable pin allows additional savings of board space. The device also includes DCR current sensing and voltage mode control.

The LTC3607EMSE#TRPBF has an advanced control architecture that features Digitally Controlled Slave Synchronous Rectifier (DCSR), constant frequency, valley current mode control, that enables fast transient response, good line and load regulation, low noise, and small size.

The LTC3607EMSE#TRPBF comes in a 16-pin 6mm × 6mm QFN package, making it the perfect solution for a wide range of applications that require efficient, low-noise power conversion.

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