LTC3895

RECOMMENDED FOR NEW DESIGNS

150V Low I_Q, Synchronous Step-Down DC/DC Controller

Data Sheet Product Selection Table

Part Models: 6
1ku List Price: Starting From $5.61

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Part Details

Wide V_IN Range: 4V to 140V (150V Abs Max)
Wide Output Voltage Range: 0.8V to 60V
Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE)
Low Operating I_Q: 40μA (Shutdown = 10μA)
100% Duty Cycle Operation
No External Bootstrap Diode Required
Selectable Gate Drive UVLO Thresholds
Onboard LDO or External NMOS LDO for DRV_CC
EXTV_CC LDO Powers Drivers from V_OUT
Phase-Lockable Frequency (75kHz to 850kHz)
Programmable Fixed Frequency (50kHz to 900kHz)
Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode^® Operation at Light Loads
Adjustable Burst Clamp and Current Limit
Adjustable or Fixed (5V/3.3V) Output Voltage
Power Good Output Voltage Monitor
Programmable Input Overvoltage Lockout
38-Lead TSSOP High Voltage Package

Part Models: 6
1ku List Price: Starting From $5.61

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
LTC3895EFE#PBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3895EFE#TRPBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3895HFE#PBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3895HFE#TRPBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3895IFE#PBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3895IFE#TRPBF	38-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LTC3895EFE#PBF	PRODUCTION
LTC3895EFE#TRPBF	PRODUCTION
LTC3895HFE#PBF	PRODUCTION
LTC3895HFE#TRPBF	PRODUCTION
LTC3895IFE#PBF	PRODUCTION
LTC3895IFE#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 Delta Qualification Matrix
LTC3895EFE#PBF	PRODUCTION
LTC3895EFE#TRPBF	PRODUCTION
LTC3895HFE#PBF	PRODUCTION
LTC3895HFE#TRPBF	PRODUCTION
LTC3895IFE#PBF	PRODUCTION
LTC3895IFE#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
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4366	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper

Parts	Product Life Cycle	Description
LTC3896	RECOMMENDED FOR NEW DESIGNS	150V Low I_Q, Synchronous Inverting DC/DC Controller

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3895

LTpowerCAD 3

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

LTC3895EFE Demo Board | Synchronous Buck, 14V ≤ VIN ≤ 130V, 150VPK; VOUT = 12V @ 5A

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Product Details

Demonstration circuit 2117A is a single output high voltage nonisolated synchronous step-down converter that drives all N-channel MOSFET power stage. It features the LTC3895EFE, a high voltage step-down DC/DC controller housed in a TSSOP-38 package with several pins removed for high voltage spacing.

Resources

DC2117A - Schematic
6/29/2016

DC2117A - Demo Manual
6/29/2016

DC2117A - Design Files
6/29/2016

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LTC3895

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 2

Video 1

Press Release 1

Solutions Bulletin & Brochure 1

Product Selector Card 2