LTC3862EFE-1

Obsolete

Analog Devices Inc./Maxim Integrated

IC POWER MANAGEMENT

LTC3862EFE-1

Obsolete

Analog Devices Inc./Maxim Integrated

IC POWER MANAGEMENT

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3862 Series

The LTC3862 is a two phase constant frequency, current mode boost and SEPIC controller that drives N-channel power MOSFETs. Two phase operation reduces system filtering capacitance and inductance requirements.The operating frequency can be set with an external resistor over a 75kHz to 500kHz range and can be synchronized to an external clock using the internal PLL. Multi-phase operation is possible using the SYNC input, the CLKOUT output and the PHASEMODE control pin allowing 2-, 3-, 4-, 6- or 12-phase operation.Other features include an internal 5V LDO with undervoltage lockout protection for the gate drivers, a precision RUN pin threshold with programmable hysteresis, soft-start and programmable leading edge blanking and maximum duty cycle.Part NumberVin RangeINTVccVINONVINOFFLTC38624V to 36V5V3.3V2.9VLTC3862-18.5V to 36V10V7.5V7.0VLTC3862-25.5V to 36V10V4.4V3.9VAPPLICATIONSAutomotive, Telecom and Industrial Power Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3862EFE-1

Clock Sync	Yes
Control Features	Soft Start, Frequency Control, Enable, Phase Control
Duty Cycle (Max)	96 %
Frequency - Switching (Max)	500 kHz
Frequency - Switching (Min)	75 kHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	24-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	No
Topology	SEPIC, Boost
Voltage - Supply (Vcc/Vdd) Maximum	36 V
Voltage - Supply (Vcc/Vdd) Minimum	8.5 V

LTC3862 Series

Multi-Phase Current Mode Step-Up DC/DC Controller

Part	Synchronous Rectifier	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Output Configuration	Operating Temperature (Max)	Operating Temperature (Min)	Function	Number of Outputs	Clock Sync	Output Phases	Package Length	Package Name	Package Features	Package Width	Duty Cycle (Max)	Frequency - Switching (Min)	Frequency - Switching (Max)	Topology	Output Type	Mounting Type	Control Features	Package / Case
Analog Devices Inc./Maxim Integrated LTC3862EFE-1	No	8.5 V	36 V	Positive	85 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.173 in	24-TSSOP	Exposed Pad	4.4 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862HFE-1#PBF	No	8.5 V	36 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.173 in	24-TSSOP	Exposed Pad	4.4 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862IUH	No	4 V	36 V	Positive	125 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	5 mm	24-QFN		5 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3862IGN#PBF	No	4 V	36 V	Positive	125 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.154 in	24-SSOP		3.9 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862IGN-2#PBF	No	5.5 V	36 V	Positive	125 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.154 in	24-SSOP		3.9 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862HGN-2	No	5.5 V	36 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.154 in	24-SSOP		3.9 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862HUH-2#PBF	No	5.5 V	36 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	5 mm	24-QFN		5 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3862EUH-1	No	8.5 V	36 V	Positive	85 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	5 mm	24-QFN		5 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3862HGN#PBF	No	4 V	36 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.154 in	24-SSOP		3.9 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start
Analog Devices Inc./Maxim Integrated LTC3862EFE-2	No	5.5 V	36 V	Positive	85 °C	-40 °C	Step-Up Step-Up/Step-Down	2	Yes	2	0.173 in	24-TSSOP	Exposed Pad	4.4 mm	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3862EFE-1 | Datasheet