LTC3622

Name: LTC3622
Brand: Analog Devices
Price: 5.67 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current

Data Sheet (Rev. D) Product Selection Table

Part Models: 30
1ku List Price: Starting From $5.67

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Overview

Dual Step-Down Outputs: 1A Per Channel
Wide V_IN Range: 2.7V to 17V
Wide V_OUT Range: 0.6V to V_IN
Up to 95% Efficiency
No-Load I_Q = 5μA with Both Channels Enabled; I_Q < 4μA with Only One Channel Enabled
High Efficiency, Low Dropout Operation (100% Duty Cycle)
Constant Frequency (1MHz/2.25MHz) with External Frequency Synchronization

±1% Output Voltage Accuracy
Current Mode Operation for Excellent Line and Load Transient Response
Phase Shift Programmable with External Clock
Selectable Current Limit
Internal Compensation and Soft-Start
Compact 14-Pin DFN (3mm × 4mm) and 16-Lead MSOP Packages

The LTC3622 is a dual 1A output, high efficiency synchronous monolithic step-down regulator capable of operating from input supplies up to 17V. The switching frequency is fixed to 1MHz or 2.25MHz with a ±50% synchronization range to an external clock. The regulator features ultralow quiescent current and high efficiency over a wide output voltage range.

The step-down regulators operate from an input voltage range of 2.7V to 17V and provide an adjustable output from 0.6V to VIN while delivering up to 1A of output current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency. Burst Mode^® operation provides the highest efficiency at light loads, while pulse-skipping mode provides the lowest ripple noise. The switching regulators can be synchronized to an external clock. Furthermore, fixed V_OUT options are available to eliminate the external feedback resistors.


LTC3622 Options Part Name	Frequency	V_OUT
LTC3622	1.00MHz	Adjustable
LTC3622-2	2.25MHz	Adjustable
LTC3622-23/5	2.25MHZ	5V/3.3V

Applications

Battery Powered Systems
Point-of-Load Supplies
Portable – Handheld Scanners

Part Models: 30
1ku List Price: Starting From $5.67

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
LTC3622EDE#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EDE#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EDE-2#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EDE-2#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EDE-23/5#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EDE-23/5#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EMSE#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EMSE#TRPBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EMSE-2#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622EMSE-2#TRPBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE-2#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE-2#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE-23/5#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HDE-23/5#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HMSE#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HMSE#TRPBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HMSE-2#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622HMSE-2#TRPBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE-2#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE-2#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE-23/5#PBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IDE-23/5#TRPBF	14-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IMSE#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IMSE#TRPBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IMSE-2#PBF	16-Lead MSOP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3622IMSE-2#TRPBF	16-Lead MSOP	Material Declaration Reliability Report 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
LTC3622EDE#PBF	PRODUCTION
LTC3622EDE#TRPBF	PRODUCTION
LTC3622EDE-2#PBF	PRODUCTION
LTC3622EDE-2#TRPBF	PRODUCTION
LTC3622EDE-23/5#PBF	PRODUCTION
LTC3622EDE-23/5#TRPBF	PRODUCTION
LTC3622HDE#PBF	PRODUCTION
LTC3622HDE#TRPBF	PRODUCTION
LTC3622HDE-2#PBF	PRODUCTION
LTC3622HDE-2#TRPBF	PRODUCTION
LTC3622HDE-23/5#PBF	PRODUCTION
LTC3622HDE-23/5#TRPBF	PRODUCTION
LTC3622IDE#PBF	PRODUCTION
LTC3622IDE#TRPBF	PRODUCTION
LTC3622IDE-2#PBF	PRODUCTION
LTC3622IDE-2#TRPBF	PRODUCTION
LTC3622IDE-23/5#PBF	PRODUCTION
LTC3622IDE-23/5#TRPBF	PRODUCTION
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process
		PCN19_0067_Form Material_Report Delta Qualification Matrix Qualification Results Summary Detailed Parts List Other
LTC3622EDE#PBF	PRODUCTION
LTC3622EDE#TRPBF	PRODUCTION
LTC3622EDE-2#PBF	PRODUCTION
LTC3622EDE-2#TRPBF	PRODUCTION
LTC3622EDE-23/5#PBF	PRODUCTION
LTC3622EDE-23/5#TRPBF	PRODUCTION
LTC3622EMSE#PBF	PRODUCTION
LTC3622EMSE#TRPBF	PRODUCTION
LTC3622EMSE-2#PBF	PRODUCTION
LTC3622EMSE-2#TRPBF	PRODUCTION
LTC3622HDE#PBF	PRODUCTION
LTC3622HDE#TRPBF	PRODUCTION
LTC3622HDE-2#PBF	PRODUCTION
LTC3622HDE-2#TRPBF	PRODUCTION
LTC3622HDE-23/5#PBF	PRODUCTION
LTC3622HDE-23/5#TRPBF	PRODUCTION
LTC3622HMSE#PBF	PRODUCTION
LTC3622HMSE#TRPBF	PRODUCTION
LTC3622HMSE-2#PBF	PRODUCTION
LTC3622HMSE-2#TRPBF	PRODUCTION
LTC3622IDE#PBF	PRODUCTION
LTC3622IDE#TRPBF	PRODUCTION
LTC3622IDE-2#PBF	PRODUCTION
LTC3622IDE-2#TRPBF	PRODUCTION
LTC3622IDE-23/5#PBF	PRODUCTION
LTC3622IDE-23/5#TRPBF	PRODUCTION
LTC3622IMSE#PBF	PRODUCTION
LTC3622IMSE#TRPBF	PRODUCTION
LTC3622IMSE-2#PBF	PRODUCTION
LTC3622IMSE-2#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0132_Form Material_Report
LTC3622EMSE#PBF	PRODUCTION
LTC3622EMSE#TRPBF	PRODUCTION
LTC3622EMSE-2#PBF	PRODUCTION
LTC3622EMSE-2#TRPBF	PRODUCTION
LTC3622HMSE#PBF	PRODUCTION
LTC3622HMSE#TRPBF	PRODUCTION
LTC3622HMSE-2#PBF	PRODUCTION
LTC3622HMSE-2#TRPBF	PRODUCTION
LTC3622IMSE#PBF	PRODUCTION
LTC3622IMSE#TRPBF	PRODUCTION
LTC3622IMSE-2#PBF	PRODUCTION
LTC3622IMSE-2#TRPBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Ideal Diodes and PowerPath Controllers 1
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
Power System Management (PSM) & Sequencers 1
LTC2977	RECOMMENDED FOR NEW DESIGNS	8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement

Tools & Simulations

LTspice 1

LTC3622 Demo Circuit - Dual Monolithic Synchronous Buck Regulator (5-17V to 3.3V @ 1A & 5V @ 1A)

Models for the following parts are available in LTspice:

LTC3622
LTC3622-2

LTpowerCAD 2

Design tools for the following parts are available in LTpowerCAD:

LTC3622
LTC3622-2

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD^® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

LTC3622 Demo Board (DFN) | Dual Sync Buck, 2.7V ≤ VIN ≤ 17V, VOUT1 = 1.2V/1.8V/2.5V/3.3V @ 1A, VOUT2 = 1.5V/1.8V/3.3V/5V @ 1A

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Product Details

Demonstration circuit 2003A is a synchronous step-down regulator using the power-saving LTC3622EDE monolithic buck regulator in a compact 14-pin DFN (4mm × 3mm) package. The DC2003A operates from an input voltage range of 2.7V to 17V and provides dual 1A outputs with an adjustable output voltage range from 1.2V to 5V. The LTC3622 IC quiescent current can be as low as 5μA in Burst Mode^® operation with both channels enabled and less than 0.1μA in shutdown mode. The switching frequency is fixed to 1MHz or 2.25MHz with a ±50% synchronization range to an external clock. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency.

Resources

DC2003A -Demo Manual
7/14/2014

DC2003A - Design Files
7/14/2014

DC2003A - Schematic
7/14/2014

LTC3622 Demo Board (DFN) | Dual Sync Buck, 2.7V ≤ VIN ≤ 17V, VOUT1 = 1.2V/1.8V/2.5V/3.3V @ 1A, VOUT2 = 1.5V/1.8V/3.3V/5V @ 1A

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Product Details

Resources

DC2003A -Demo Manual
7/14/2014

DC2003A - Design Files
7/14/2014

DC2003A - Schematic
7/14/2014

LTC3622EMSE Demo Board (MSOP) | Dual Sync Buck, 2.7V ≤ VIN ≤ 17V, VOUT1 = 1.2V/1.8V/2.5V @ 1A, VOUT2 = 3.3V/5V @ 1A

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Product Details

Demonstration circuit 2004A is a synchronous step-down regulator using the power-saving LTC3622EMSE monolithic buck regulator in a 16-lead MSE package. The DC2004A operates from an input voltage range of 2.7V to 17V and provides dual 1A outputs with adjustable output voltage range from 1.2V to 5V. The LTC3622 IC quiescent current can be as low as 5μA in Burst Mode^® operation with both channels enabled and less than 0.1μA in shutdown mode. The switching frequency is fixed to 1MHz or 2.25MHz with a ±50% synchronization range to an external clock. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency.