LTC4228-1
LTC4228-2

RECOMMENDED FOR NEW DESIGNS

Dual Ideal Diode and Hot Swap Controller

Data Sheet Product Selection Table

Part Models: 16
1ku List Price: Starting From $4.30

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Part Details

Power Path and Inrush Current Control for Redundant Supplies
Low Loss Replacement for Power Schottky Diodes
Protects Output Voltage from Input Brownouts
Allows Safe Hot Swapping from a Live Backplane
2.9V to 18V Operating Range
Controls N-Channel MOSFETs
Limits Peak Fault Current in ≤1μs
Adjustable Current Limit with Circuit Breaker
Adjustable Current Limit Fault Delay
Smooth Switchover without Oscillation
0.5μs Ideal Diode Turn-On and Turn-Off Time
Status, Fault and Power Good Outputs
LTC4228-1: Latch Off After Fault
LTC4228-2: Automatic Retry After Fault
28-Lead 4mm × 5mm QFN and SSOP Packages

Part Models: 16
1ku List Price: Starting From $4.30

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
LTC4228CGN-1#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CGN-1#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CGN-2#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CGN-2#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CUFD-1#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CUFD-1#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CUFD-2#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228CUFD-2#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IGN-1#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IGN-1#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IGN-2#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IGN-2#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IUFD-1#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IUFD-1#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IUFD-2#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4228IUFD-2#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL
		PCN22_0177_Form Material_Report Delta Qualification Matrix
LTC4228CGN-1#PBF	PRODUCTION
LTC4228CGN-1#TRPBF	PRODUCTION
LTC4228CGN-2#PBF	PRODUCTION
LTC4228CGN-2#TRPBF	PRODUCTION
LTC4228IGN-1#PBF	PRODUCTION
LTC4228IGN-1#TRPBF	PRODUCTION
LTC4228IGN-2#PBF	PRODUCTION
LTC4228IGN-2#TRPBF	PRODUCTION
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
LTC4228CUFD-1#PBF	PRODUCTION
LTC4228CUFD-1#TRPBF	PRODUCTION
LTC4228CUFD-2#PBF	PRODUCTION
LTC4228CUFD-2#TRPBF	PRODUCTION
LTC4228IUFD-1#PBF	PRODUCTION
LTC4228IUFD-1#TRPBF	PRODUCTION
LTC4228IUFD-2#PBF	PRODUCTION
LTC4228IUFD-2#TRPBF	PRODUCTION

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
PowerPath, Ideal Diodes, and Load Switches 3
LTC4227	RECOMMENDED FOR NEW DESIGNS	Dual Ideal Diode and Single Hot Swap Controller
LTC4370	RECOMMENDED FOR NEW DESIGNS	Two-Supply Diode-OR Current Balancing Controller
LTC4229	RECOMMENDED FOR NEW DESIGNS	Ideal Diode and Hot Swap Controller

Parts	Product Life Cycle	Description
LTC4236	RECOMMENDED FOR NEW DESIGNS	Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor

Tools & Simulations

LTspice 1

LTC4228 - Power Monitor, Control, and Protection

Models for the following parts are available in LTspice:

LTC4228-1
LTC4228-2

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.