LTC3862IUH-1#PBF

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Analog Devices

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

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LTC3862IUH-1#PBF

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Analog Devices

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

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DocumentsDatasheet R526 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3862IUH-1#PBF

Clock Sync	True
Control Features	Enable, Phase Control, Soft Start, Frequency Control
Duty Cycle (Max) [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]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	24-WQFN Exposed Pad
Supplier Device Package	24-QFN (5x5)
Synchronous Rectifier	False
Topology	SEPIC, Boost
Voltage - Supply (Vcc/Vdd) [Max]	36 V
Voltage - Supply (Vcc/Vdd) [Min]	8.5 V

LTC3862-1 Series

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

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

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 11.54
		10	$ 7.91
		25	$ 7.64
		73	$ 6.10
		100	$ 6.60
		146	$ 5.66
		250	$ 6.10
		292	$ 5.55
		500	$ 5.79
		1000	$ 5.55

Description

General part information

LTC3862-1 Series

The LTC3862-1 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 10V 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 NumberVINRangeINTVCCUV+UV–LTC38624V to 36V5V3.3V2.9VLTC3862-18.5V to 36V10V7.5V7.0VLTC3862-25.5V to 36V10V4.4V3.9VApplicationsAutomotive, Telecom and Industrial Power Supplies