LT3758 Series

High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller

Catalog

High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller

Part	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Phases	Function	Output Configuration	Number of Outputs	Topology	Frequency - Switching [Max]	Frequency - Switching [Min]	Control Features	Output Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case	Mounting Type	Supplier Device Package
Analog Devices LT3758EMSE#PBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758AHMSE#PBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	150 °C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758MPMSE	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-55 °C	150 °C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758EMSE#TRPBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758IMSE#TRPBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758EMSE	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758HMSE	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	150 °C	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	Surface Mount	10-MSOP-EP
Analog Devices LT3758EDD#TRPBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C		10-WFDFN Exposed Pad	Surface Mount	10-DFN (3x3)
Analog Devices LT3758AEDD#PBF	100 V	5.5 V	1	Step-Up Step-Up/Step-Down	Isolation Capable Positive or Negative	1	Boost Flyback SEPIC	1 MHz	100 kHz	Enable Frequency Control Soft Start	Transistor Driver	-40 °C	125 ¯C		10-WFDFN Exposed Pad	Surface Mount	10-DFN (3x3)

Catalog

High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller

Key Features

• Wide Input Voltage Range: 5.5V to 100V

• Positive or Negative Output Voltage Programming with a Single Feedback Pin

• Current Mode Control Provides Excellent Transient Response

• Programmable Operating Frequency (100kHz to 1MHz) with One External Resistor

• Synchronizable to an External Clock

• Low Shutdown Current < 1μA

• Internal 7.2V Low Dropout Voltage Regulator

• Programmable Input Undervoltage Lockout with Hysteresis

• Programmable Soft-Start

• Small 10-Lead DFN (3mm × 3mm) and MSOPE Packages

• AEC-Q100 Qualified for Automotive Applications

Description

The LT3758/LT3758A are wide input range, current mode, DC/DC controllers which are capable of generating either positive or negative output voltages. They can be configured as either a boost, flyback, SEPIC or inverting converter. The LT3758/LT3758A drive a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages.The operating frequency of LT3758/LT3758A can be set with an external resistor over a 100kHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 5.5V, and a low shutdown quiescent current of less than 1μA, make the LT3758/LT3758A ideally suited for batterypowered systems.The LT3758/LT3758A feature soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit. The LT3758A has improved load transient performance compared to the LT3758.APPLICATIONSAutomotiveTelecomIndustrial