LTC3807

RECOMMENDED FOR NEW DESIGNS

Low I_Q, Synchronous Step-Down Controller with 24V Output Voltage Capability

Data Sheet Product Selection Table

Part Models: 16
1ku List Price: Starting From $2.78

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Part Details

Wide V_IN Range: 4V to 38V (40V Abs Max)
Low Operating I_Q: 50μA
Wide Output Voltage Range: 0.8V ≤ V_OUT ≤ 24V
R_SENSE or DCR Current Sensing
Phase-Lockable Frequency (75kHz to 750kHz)
Programmable Fixed Frequency (50kHz to 900kHz)
Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode^® Operation at Light Load
Selectable Current Limit
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Output Voltage Soft-Start or Tracking
Power Good Output Voltage Monitor
Output Overvoltage Protection
Low Shutdown I_Q: 14μA
Internal LDO Powers Gate Drive from V_IN or EXTV_CC
No Current Foldback During Start-Up
Small 20-Pin 3mm × 4mm QFN and TSSOP Packages

Part Models: 16
1ku List Price: Starting From $2.78

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
LTC3807EFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807EFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807EUDC#PBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807EUDC#TRPBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807HFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807HFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807HUDC#PBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807HUDC#TRPBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807IFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807IFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807IUDC#PBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807IUDC#TRPBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807MPFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807MPFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807MPUDC#PBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3807MPUDC#TRPBF	20-Lead QFN (3mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
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
LTC3807EFE#PBF	PRODUCTION
LTC3807EFE#TRPBF	PRODUCTION
LTC3807HFE#PBF	PRODUCTION
LTC3807HFE#TRPBF	PRODUCTION
LTC3807IFE#PBF	PRODUCTION
LTC3807IFE#TRPBF	PRODUCTION
LTC3807MPFE#PBF	PRODUCTION
LTC3807MPFE#TRPBF	PRODUCTION
Jul 31, 2020 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTC3807EFE#PBF	PRODUCTION
LTC3807EFE#TRPBF	PRODUCTION
LTC3807EUDC#PBF	PRODUCTION
LTC3807EUDC#TRPBF	PRODUCTION
LTC3807HFE#PBF	PRODUCTION
LTC3807HFE#TRPBF	PRODUCTION
LTC3807HUDC#PBF	PRODUCTION
LTC3807HUDC#TRPBF	PRODUCTION
LTC3807IFE#PBF	PRODUCTION
LTC3807IFE#TRPBF	PRODUCTION
LTC3807IUDC#PBF	PRODUCTION
LTC3807IUDC#TRPBF	PRODUCTION
LTC3807MPFE#PBF	PRODUCTION
LTC3807MPFE#TRPBF	PRODUCTION
LTC3807MPUDC#PBF	PRODUCTION
LTC3807MPUDC#TRPBF	PRODUCTION

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
Low Voltage Hot Swap Controllers 1
LTC4231	RECOMMENDED FOR NEW DESIGNS	Micropower Hot Swap Controller
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Tools & Simulations

LTspice 1

LTC3807 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LTC3807

LTpowerCAD 4

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

LTC3807EFE Demo Board | Synchronous Buck, 16V ≤ VIN ≤ 38V; VOUT = 12V @ 15A

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Product Details

Demonstration circuit 2221A is a low quiescent current, synchronous buck converter featuring the LTC3807EFE. This demo board converts a 16V to 38V input voltage to a 12V at 15A output. The main features of this board include an internal LDO for gate drive power from V_IN or EXTV_CC, RUN and PGOOD pins, a mode selector that allows the converter to run in constant current mode (CCM), pulse-skipping or Burst Mode^® operation, and selectable current limit. The DC2221A supports an adjustable output voltage, soft-start and tracking. The wide input voltage range of 16V to 38V is suitable for automotive and distributed DC power systems where low quiescent current is important.

Resources

DC2221A - Design Files
901.00K

DC2221A - Demo Manual
429.00K

DC2221A - Schematic
44.00K

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