LTC3886EUKG-1#PBF

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Analog Devices Inc./Maxim Integrated

60V DUAL OUTPUT STEP-DOWN CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT

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LTC3886EUKG-1#PBF

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Analog Devices Inc./Maxim Integrated

60V DUAL OUTPUT STEP-DOWN CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3886LTC3886-1 Series

The LTC3886/LTC3886-1 is a dual PolyPhase DC/DC synchronous step-down switching regulator controller with I2C-based PMBus compliant serial interface. This controller employs a constant-frequency, current-mode architecture, with high voltage input and output capability along with programmable loop compensation. The LTC3886 is supported by the LTpowerPlay®software development tool with graphical user interface (GUI).The EXTVCC pin supports voltages up to 14V allowing for optimized circuit efficiency and die temperature, and for the controller output to supply the chip power. Switching frequency, output voltage, and device address can be programmed both by digital interface as well as external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Both outputs have an independent power good indicator andFAULTfunction.The LTC3886 can be configured for discontinuous (pulse-skipping) mode or continuous inductor current mode. The LTC3886-1 also includes a sequencing off feature to discharge very large output capacitors.APPLICATIONSTelecom, Datacom, and Storage SystemsIndustrial and Point of Load Applications

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3886EUKG-1#PBF

Clock Sync	Yes
Control Features	Phase Control, Frequency Control, Power Good, Enable
Frequency - Switching (Max)	750 kHz
Frequency - Switching (Min)	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package Leads	46 Leads
Package Length	7 mm
Package Name	52-WFQFN, 52-QFN
Package Width	8 mm
Serial Interfaces	PMBus, I2C
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	60 V
Voltage - Supply (Vcc/Vdd) Minimum	4.5 V

LTC3886LTC3886-1 Series

60V Dual Output Step-Down Controller with Digital Power System Management

Part	Number of Outputs	Operating Temperature (Max)	Operating Temperature (Min)	Package Name	Package Leads	Frequency - Switching (Max)	Frequency - Switching (Min)	Mounting Type	Package Width	Package Length	Output Type	Control Features	Output Phases	Serial Interfaces	Clock Sync	Topology	Synchronous Rectifier	Output Configuration	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Function
Analog Devices Inc./Maxim Integrated LTC3886EUKG#TRPBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886IUKG#TRPBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886IUKG-1#PBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886EUKG-1#TRPBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886EUKG-1#PBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886IUKG#PBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886EUKG#PBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down
Analog Devices Inc./Maxim Integrated LTC3886IUKG-1#TRPBF	2	125 °C	-40 °C	52-QFN 52-WFQFN	46 Leads	750 kHz	100 kHz	Surface Mount	8 mm	7 mm	Transistor Driver	Enable Frequency Control Phase Control Power Good	2	I2C PMBus	Yes	Buck	Yes	Positive	4.5 V	60 V	Step-Down

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3886EUKG-1#PBF | Datasheet

LTC3886/LTC3886-1: 60V Dual Output Step-Down Controller with Digital Power System Management Data Sheet (Rev.G)

R526 Reliability Data

Package Drawing - 52-Lead Plastic QFN (7mm x 8mm x 0.75mm w/ EP)

LTC3886 to LTC3886-1 Migration Guide (Rev.0)