LTC3734

PRODUCTION

Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

Part Models: 2
1ku List Price: Starting From $4.44

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Overview

Wide Input Voltage Range: 4V to 30V
±1% Output Voltage Accuracy
6-Bit IMVP-IV VID Code: V_OUT = 0.7V to 1.708V
Intel Compatible Power Saving Mode (PSIB)
Power Good Output with Adaptive Masking
Lossless Voltage Positioning
Resistor Programmable V_OUT at Boot-Up and Deeper Sleep State
Resistor Programmable Deep Sleep Offset
Programmable Fixed Frequency: 210kHz to 550kHz
Adjustable Soft-Start Current Ramping
Foldback Output Current Limit
Short-Circuit Shutdown Timer with Defeat Option
Overvoltage Protection
Available in 32-Lead 5mm × 5mm × 0.8mm (Profile) QFN Package

The LTC3734 is a single-phase synchronous step-down switching regulator controller that drives all N-channel power MOSFETs in a constant frequency architecture. The output voltage is programmable by six VID bits during normal operation and by external resistors during initial boot-up and deeper sleep state. The LTC3734 drives its output stage at frequencies up to 550kHz. Powerful onchip gate drivers eliminate the need for external gate driver ICs, thus simplifying the design.

An Intel compatible PSIB input is provided to select between two modes of operation. Fully enhanced synchronous mode achieves a very small output ripple and very fast transient response while power saving mode realizes very high efficiency. OPTI-LOOP^® compensation allows the transient response to be optimized for a wide range of output capacitance and ESR values.

The LTC3734 is available in a small 5mm × 5mm QFN package. For 2-phase applications refer to the LTC3735.

Applications

Mobile and Desktop Computers
Internet Servers

Part Models: 2
1ku List Price: Starting From $4.44

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3734EUH#PBF	32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3734EUH#TRPBF	32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products
		PCN21_0269_Form Material_Report Detailed Change Description Qualification Results Summary
LTC3734EUH#PBF	PRODUCTION
LTC3734EUH#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

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