Integrated Circuits (ICs)

LTC3862HFE-1#PBF

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Analog Devices Inc./Maxim Integrated

MULTI-PHASE CURRENT MODE STEP-UP DC/DC CONTROLLER

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Integrated Circuits (ICs)

LTC3862HFE-1#PBF

Active

Analog Devices Inc./Maxim Integrated

MULTI-PHASE CURRENT MODE STEP-UP DC/DC CONTROLLER

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DocumentsDatasheet R526 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3862HFE-1#PBF

Clock Sync	True
Control Features	Soft Start, Enable, Phase Control, Frequency Control
Duty Cycle (Max) [Max]	96 %
Frequency - Switching [Max]	500 kHz
Frequency - Switching [Min]	75 kHz
Function	Step-Up/Step-Down, Step-Up
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	0.173 ", 4.4 mm
Package / Case	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package	24-TSSOP
Synchronous Rectifier	False
Topology	Boost, SEPIC
Voltage - Supply (Vcc/Vdd) [Max]	36 V
Voltage - Supply (Vcc/Vdd) [Min]	8.5 V

LTC3862 Series

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

Part	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Function	Number of Outputs	Output Phases	Package / Case	Package / Case	Duty Cycle (Max) [Max]	Frequency - Switching [Min]	Frequency - Switching [Max]	Topology	Output Type	Mounting Type	Control Features	Supplier Device Package	Package / Case [y]
Analog Devices Inc./Maxim Integrated LTC3862EFE-1	36 V	8.5 V	Positive	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	2	2	0.173 " 4.4 mm	24-TSSOP (0.173" 4.40mm Width) Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-TSSOP
Analog Devices Inc./Maxim Integrated LTC3862HFE-1#PBF	36 V	8.5 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	2	0.173 " 4.4 mm	24-TSSOP (0.173" 4.40mm Width) Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-TSSOP
Analog Devices Inc./Maxim Integrated LTC3862IUH	36 V	4 V	Positive	125 °C	-40 C	Step-Up Step-Up/Step-Down	2	2		24-WQFN Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-QFN (5x5)
Analog Devices Inc./Maxim Integrated LTC3862IGN#PBF	36 V	4 V	Positive	125 °C	-40 C	Step-Up Step-Up/Step-Down	2	2		24-SSOP	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-SSOP	0.154 in 3.9 mm Width
Analog Devices Inc./Maxim Integrated LTC3862IGN-2#PBF	36 V	5.5 V	Positive	125 °C	-40 C	Step-Up Step-Up/Step-Down	2	2		24-SSOP	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-SSOP	0.154 in 3.9 mm Width
Analog Devices Inc./Maxim Integrated LTC3862HGN-2	36 V	5.5 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	2		24-SSOP	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-SSOP	0.154 in 3.9 mm Width
Analog Devices Inc./Maxim Integrated LTC3862HUH-2#PBF	36 V	5.5 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	2		24-WQFN Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-QFN (5x5)
Analog Devices Inc./Maxim Integrated LTC3862EUH-1	36 V	8.5 V	Positive	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	2	2		24-WQFN Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-QFN (5x5)
Analog Devices Inc./Maxim Integrated LTC3862HGN#PBF	36 V	4 V	Positive	150 °C	-40 °C	Step-Up Step-Up/Step-Down	2	2		24-SSOP	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-SSOP	0.154 in 3.9 mm Width
Analog Devices Inc./Maxim Integrated LTC3862EFE-2	36 V	5.5 V	Positive	85 C	-40 ¯C	Step-Up Step-Up/Step-Down	2	2	0.173 " 4.4 mm	24-TSSOP (0.173" 4.40mm Width) Exposed Pad	96 %	75 kHz	500 kHz	Boost SEPIC	Transistor Driver	Surface Mount	Enable Frequency Control Phase Control Soft Start	24-TSSOP

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	86	$ 12.46	1m+
	Tube	1	$ 13.18	1m+
		10	$ 9.32
		25	$ 8.33
		100	$ 7.22
		250	$ 6.68
		500	$ 6.36
		1000	$ 6.15

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