LT8616

Name: LT8616
Brand: Analog Devices
Price: 6.65 USD
Availability: InStock

PRODUCTION

Dual 42V Synchronous Monolithic Step-Down Regulator with 6.5μA Quiescent Current

Data Sheet Product Selection Table

Part Models: 10
1ku List Price: Starting From $6.26

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Overview

Wide Input Voltage Range: 3.4V to 42V
2.5A and 1.5A Buck Regulators with Separate Inputs
Fast Minimum Switch On-Time: 35ns
Ultralow Quiescent Current Burst Mode^® Operation:
- 6.5μA I_Q Regulating 12V_IN to 5V_OUT and 3.3V_OUT
- Output Ripple < 15mV
180° Out of Phase Switching
- Adjustable: 200kHz to 3MHz
Synchronizable: 250kHz to 3MHz
Accurate 1V Enable Pin Thresholds
Internal Compensation
Output Soft-Start and Tracking
TSSOP Package: Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin Is Left Floating
Thermally Enhanced 28-Lead TSSOP and 3mm × 6mm QFN Packages

Part Models: 10
1ku List Price: Starting From $6.26

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
LT8616EFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616EFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616EUDE#PBF	28-Lead QFN (3mm x 6mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616EUDE#TRPBF	28-Lead QFN (3mm x 6mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616HFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616HFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616IFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616IFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616IUDE#PBF	28-Lead QFN (3mm x 6mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT8616IUDE#TRPBF	28-Lead QFN (3mm x 6mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products
		PCN26_0072_Form Material_Report
LT8616EFE#PBF	PRODUCTION
LT8616EFE#TRPBF	PRODUCTION
LT8616HFE#PBF	PRODUCTION
LT8616HFE#TRPBF	PRODUCTION
LT8616IFE#PBF	PRODUCTION
LT8616IFE#TRPBF	PRODUCTION
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report
LT8616EFE#PBF	PRODUCTION
LT8616EFE#TRPBF	PRODUCTION
LT8616EUDE#PBF	PRODUCTION
LT8616EUDE#TRPBF	PRODUCTION
LT8616HFE#PBF	PRODUCTION
LT8616HFE#TRPBF	PRODUCTION
LT8616IFE#PBF	PRODUCTION
LT8616IFE#TRPBF	PRODUCTION
LT8616IUDE#PBF	PRODUCTION
LT8616IUDE#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report
LT8616EFE#PBF	PRODUCTION
LT8616EFE#TRPBF	PRODUCTION
LT8616HFE#PBF	PRODUCTION
LT8616HFE#TRPBF	PRODUCTION
LT8616IFE#PBF	PRODUCTION
LT8616IFE#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
LT8616EFE#PBF	PRODUCTION
LT8616EFE#TRPBF	PRODUCTION
LT8616EUDE#PBF	PRODUCTION
LT8616EUDE#TRPBF	PRODUCTION
LT8616HFE#PBF	PRODUCTION
LT8616HFE#TRPBF	PRODUCTION
LT8616IFE#PBF	PRODUCTION
LT8616IFE#TRPBF	PRODUCTION
LT8616IUDE#PBF	PRODUCTION
LT8616IUDE#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
Hot Swap Controllers 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Parts	Product Life Cycle	Description
LT8601	RECOMMENDED FOR NEW DESIGNS	42V Triple Monolithic Synchronous Step-Down Regulator
LT8602	RECOMMENDED FOR NEW DESIGNS	42V Quad Monolithic Synchronous Step-Down Regulator

Tools & Simulations

LTspice 1

LT8616 Demo Circuit - 5V, 3.3V, 2MHz Step-Down Converter (5.8-42V to 5V @ 1.5A & 3.3V @ 2.5A)

Models for the following parts are available in LTspice:

LT8616

LTpowerCAD 1

LT8616 Project - Dual Synchronous Buck (4.1-42V to 5V @ 1.5A & 3.3V @ 2.5A)

Design tools for the following parts are available in LTpowerCAD:

LT8616

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

LT8616EFE Demo Board | Dual Sync Buck, 4.1V ≤ VIN ≤ 42V, VOUT1 = 5V @ 1.5A, VOUT2 = 3.3V @ 2.5A

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Product Details

Demonstration circuit 2169A is a dual monolithic step-down DC/DC switching regulator featuring the LT8616. The LT8616 is a high efficiency, high speed, dual synchronous monolithic step-down switching regulator that consumes only 6.5μA of quiescent current with both channels enabled. The demo circuit is designed for 5V, 1.5A and 3.3V, 2.5A outputs. Both channels contain all switches and necessary circuitry to minimize the external components and solution size. Fast minimum ON time of 35ns enables high V_IN to low V_OUT conversion at high switching frequency. Independent input voltage, feedback, soft-start and power good pins for each channel simplify complex power supply tracking/sequencing requirements.