LT3694/LT3694-1 - 36V, 2.6A Monolithic Step-Down Regulator with Dual LDOs

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The LT3694 / LT3694-1 are monolithic, current mode DC/DC converters with dual channel, low dropout regulator controllers. The switching converter is a buck converter capable of generating up to 2.6A at its output. Each regulator has an independent tracking/soft-start circuit, which simplifies power sequencing and with microcontrollers and DSPs (Digital Signal Processing, DSP for short.) is a multidisciplinary subject that is widely used in many fields. Emerging disciplines. Since the 1960s, with the rapid development of computer and information technology, digital signal processing technology has emerged and developed rapidly. Digital signal processing is a way to perform conversion or extract information by using mathematical techniques. A method of processing realistic signals, which are represented by a sequence of numbers. In the past two decades, digital signal processing has been widely used in communications and other fields.
The switching frequency is set with a single resistor and is adjustable from 250kHz to 2.5MHz. This high switching frequency allows the use of small inductors and ceramic capacitors, resulting in a very small three-channel output solution. The protection circuit is responsible for detecting the power switch and the external Schottky clamp diode (diode, also known as the crystal diode, referred to as the diode; it only transmits the current electronic component in one direction. It is a two-terminal with one part number joint The device has the property of flowing or not flowing current according to the direction of the applied voltage. The crystal diode is a pn junction formed by a p-type semiconductor and an n-type semiconductor, and a space charge layer is formed on both sides of the interface, and the self is formed. The current in the electric field is built to avoid damage to the LT3694 from short circuits. Frequency foldback and thermal shutdown provide additional protection.
With its wide input voltage range of 4V to 36V, the LT3694 regulates a wide range of power supplies, from 4-cell and 5V logic rails to unregulated wall transformers, lead-acid batteries, and distributed power supplies. The LT3694 can be synchronized to an external clock using the SYNC pin, while the LT3694-1 provides a CLKOUT pin that allows other DC/DC converters to synchronize to the LT3694-1 clock.
LT3694/LT3694 features: wide input range, 4V to 36V; overvoltage shutdown to protect circuit safely with 70V transient voltage; 2.6A output switching regulator with internal power switch; dual channel with programmable current limit, Low dropout, linear regulator controller; tracking/soft start input and power good output simplify soft start and power sequencing.
Small inductors and ceramic capacitors; VOUT(MIN) = 0.75V (buck regulator and LDO); adjustable switching frequency from 250kHz to 2.5MHz; clock synchronization (LT3694) or for other switching stability Synchronized clock output (LT3694-1) option. Thermally enhanced 28-pin 4mm x 5mm QFN package and 20-pin TSSOP package.
LT3694/LT3694 applications: automotive, industrial, DSL and cable modems, distributed power conditioning, wall transformer regulation.

LT3694/LT3694-1 classic application

LT3694/LT3694 package