LTC3773EUHF

Obsolete

Analog Devices Inc./Maxim Integrated

IC REG CTRLR BUCK 38QFN

Find alt

Alpha

LTC3773EUHF

Obsolete

Analog Devices Inc./Maxim Integrated

IC REG CTRLR BUCK 38QFN

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3773 Series

The LTC3773 is a high performance, 3-phase, triple output synchronous step-down switching regulator controller with output voltage power up/down tracking capability. The controller allows for sequential, coincident or ratiometric tracking.This 3-phase controller drives its output stages with 120° phase separation at frequencies of up to 700kHz per phase minimizing the RMS input current. Light load efficiency can be maximized by using selectable Burst Mode operation. The 0.6V precision reference supports output voltages from 0.6V to 5V.Fault protection features include output overvoltage, input undervoltage lockout plus current foldback under short-circuit or overload conditions.ApplicationsServers, Telecom, Industrial Power SuppliesGeneral Purpose Multiple Rail DC/DCFPGA and DSP Requirements

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3773EUHF

Clock Sync	No
Control Features	Enable, Tracking, Power Good
Duty Cycle (Max)	98.5 %
Frequency - Switching (Max)	560 kHz
Frequency - Switching (Min)	220 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	3
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	3
Output Type	Transistor Driver
Package / Case	38-WFQFN Exposed Pad
Package Length	5 mm
Package Name	38-QFN
Package Width	7 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	36 V
Voltage - Supply (Vcc/Vdd) Minimum	3.3 V

LTC3773 Series

Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

Part	Clock Sync	Output Type	Output Configuration	Frequency - Switching (Min)	Frequency - Switching (Max)	Synchronous Rectifier	Mounting Type	Duty Cycle (Max)	Output Phases	Control Features	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Package Length	Package Name	Package Width	Number of Outputs	Function	Topology	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Contents	Total Output Count	Non-Isolated Output Count	Utilized IC / Part	Voltage - Output	Regulator Topology	Main Purpose	Frequency - Switching	Current - Output	Package / Case
Analog Devices Inc./Maxim Integrated LTC3773EG#TRPBF	No	Transistor Driver	Positive	220 kHz	560 kHz	Yes	Surface Mount	98.5 %	3	Enable Power Good Tracking	85 °C	-40 °C	3.3 V	36 V	0.209 in	36-SSOP	5.3 mm	3	Step-Down	Buck
Analog Devices Inc./Maxim Integrated DC908A		Non-Isolated																			24 VAC	7 V	Board	3	3	LTC3773	1.8 V 2.5 V 3.3 V	Buck	DC/DC Step Down	220 kHz	15 A
Analog Devices Inc./Maxim Integrated LTC3773EG#PBF	No	Transistor Driver	Positive	220 kHz	560 kHz	Yes	Surface Mount	98.5 %	3	Enable Power Good Tracking	85 °C	-40 °C	3.3 V	36 V	0.209 in	36-SSOP	5.3 mm	3	Step-Down	Buck
Analog Devices Inc./Maxim Integrated LTC3773EUHF#PBF	No	Transistor Driver	Positive	220 kHz	560 kHz	Yes	Surface Mount	98.5 %	3	Enable Power Good Tracking	85 °C	-40 °C	3.3 V	36 V	5 mm	38-QFN	7 mm	3	Step-Down	Buck												38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3773EUHF	No	Transistor Driver	Positive	220 kHz	560 kHz	Yes	Surface Mount	98.5 %	3	Enable Power Good Tracking	85 °C	-40 °C	3.3 V	36 V	5 mm	38-QFN	7 mm	3	Step-Down	Buck												38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3773EUHF#TRPBF	No	Transistor Driver	Positive	220 kHz	560 kHz	Yes	Surface Mount	98.5 %	3	Enable Power Good Tracking	85 °C	-40 °C	3.3 V	36 V	5 mm	38-QFN	7 mm	3	Step-Down	Buck												38-WFQFN Exposed Pad

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

No documents available