LTC3704IMS#PBF

Active

Analog Devices Inc./Maxim Integrated

WIDE INPUT RANGE, NO RSENSE™POSITIVE-TO-NEGATIVE DC/DC CONTROLLER

LTC3704IMS#PBF

Active

Analog Devices Inc./Maxim Integrated

WIDE INPUT RANGE, NO RSENSE™POSITIVE-TO-NEGATIVE DC/DC CONTROLLER

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3704 Series

The LTC3704 is a wide input range, current mode, positive-to-negative DC/DC controller that drives an N-channel power MOSFET and requires very few external components. Intended for low to high power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency.The IC’s operating frequency can be set with an external resistor over a 50kHz to 1MHz range, and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10µA make the LTC3704 ideally suited for battery-operated systems.For applications requiring constant frequency operation, the Burst Mode operation feature can be defeated using the MODE/SYNC pin. Higher than 36V switch voltage applications are possible with the LTC3704 by connecting the SENSE pin to a resistor in the source of the power MOSFET.The LTC3704 is available in the 10-lead MSOP package.ApplicationsSLIC Power SuppliesTelecom Power SuppliesPortable Electronic EquipmentCable and DSL ModemsRouter Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3704IMS#PBF

Clock Sync	Yes
Control Features	Enable, Frequency Control
Duty Cycle (Max)	92 %
Frequency - Switching (Max)	1 MHz
Frequency - Switching (Min)	50 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Negative
Output Phases	1
Output Type	Transistor Driver
Package Length	0.118 in
Package Name	10-MSOP, 10-TFSOP
Package Width	3 mm
Synchronous Rectifier	No
Topology	Cuk
Voltage - Supply (Vcc/Vdd) Maximum	36 V
Voltage - Supply (Vcc/Vdd) Minimum	2.5 V

LTC3704 Series

Part	Function	Number of Outputs	Synchronous Rectifier	Package Length	Package Name	Package Width	Duty Cycle (Max)	Clock Sync	Mounting Type	Control Features	Frequency - Switching (Min)	Frequency - Switching (Max)	Output Configuration	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Output Type	Output Phases
Analog Devices Inc./Maxim Integrated LTC3704EMS#TRPBF	Step-Down Step-Up	1	No	0.118 in	10-MSOP 10-TFSOP	3 mm	92 %	Yes	Surface Mount	Enable Frequency Control	50 kHz	1 MHz	Negative	Cuk	85 °C	-40 °C	2.5 V	36 V	Transistor Driver	1
Analog Devices Inc./Maxim Integrated LTC3704IMS#TRPBF	Step-Down Step-Up	1	No	0.118 in	10-MSOP 10-TFSOP	3 mm	92 %	Yes	Surface Mount	Enable Frequency Control	50 kHz	1 MHz	Negative	Cuk	125 °C	-40 °C	2.5 V	36 V	Transistor Driver	1
Analog Devices Inc./Maxim Integrated LTC3704IMS	Step-Down Step-Up	1	No	0.118 in	10-MSOP 10-TFSOP	3 mm	92 %	Yes	Surface Mount	Enable Frequency Control	50 kHz	1 MHz	Negative Positive Positive or Negative	Cuk	85 °C	-40 °C	2.5 V	36 V	Transistor Driver	1
Analog Devices Inc./Maxim Integrated LTC3704IMS#PBF	Step-Down Step-Up	1	No	0.118 in	10-MSOP 10-TFSOP	3 mm	92 %	Yes	Surface Mount	Enable Frequency Control	50 kHz	1 MHz	Negative	Cuk	125 °C	-40 °C	2.5 V	36 V	Transistor Driver	1
Analog Devices Inc./Maxim Integrated LTC3704EMS#PBF	Step-Down Step-Up	1	No	0.118 in	10-MSOP 10-TFSOP	3 mm	92 %	Yes	Surface Mount	Enable Frequency Control	50 kHz	1 MHz	Negative	Cuk	85 °C	-40 °C	2.5 V	36 V	Transistor Driver	1

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

R384 Reliability Data