LT3695EMSE-3.3#TRPBF

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Analog Devices Inc./Maxim Integrated

1A FAULT TOLERANT MICROPOWER STEP-DOWN REGULATOR

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LT3695EMSE-3.3#TRPBF

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Analog Devices Inc./Maxim Integrated

1A FAULT TOLERANT MICROPOWER STEP-DOWN REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3695 Series Series

The LT3695 series are adjustable frequency (250kHz to 2.2MHz) monolithic buck switching regulators that accept input voltages up to 36V and can safely sustain transient voltages up to 60V. The devices include a high efficiency switch, a boost diode, and the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability. A SYNC pin allows the user to synchronize the part to an external clock, and to choose between low ripple Burst Mode operation and standard PWM operation.The LT3695 regulators tolerate adjacent pin shorts or an open pin without raising the output voltage above its programmed value.Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below 15mV in a typical application. Shutdown reduces input supply current to less than 1μA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). Protection circuitry senses the current in the power switch and external Schottky catch diode to protect the LT3695 regulators against short-circuit conditions. Frequency foldback and thermal shutdown provide additional protection.The LT3695 series is available in a thermally enhanced 16-pin MSOP package.ApplicationsAutomotive Battery RegulationAutomotive Entertainment SystemsDistributed Supply RegulationIndustrial Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT3695EMSE-3.3#TRPBF

Current - Output	1 A
Frequency - Switching (Max)	2.2 MHz
Frequency - Switching (Min)	250 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Features	Exposed Pad
Package Length	0.118 in
Package Name	16-TFSOP, 16-MSOP-EP
Package Width	3 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	36 V
Voltage - Input (Min)	3.6 V
Voltage - Output (Min/Fixed)	3.3 V

LT3695 Series Series

1A Fault Tolerant Micropower Step-Down Regulator

Part	Synchronous Rectifier	Output Type	Voltage - Output (Max)	Function	Current - Output	Frequency - Switching (Max)	Frequency - Switching (Min)	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Min/Fixed)	Voltage - Input (Max)	Topology	Voltage - Input (Min)	Package Name	Package Width	Package Features	Package Length	Output Configuration	Mounting Type	Number of Outputs
Analog Devices Inc./Maxim Integrated LT3695EMSE#TRPBF	No	Adjustable	20 V	Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	0.8 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695IMSE-3.3#PBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	3.3 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695EMSE-3.3#PBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	3.3 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695HMSE#TRPBF	No	Adjustable	20 V	Step-Down	1 A	2.2 MHz	250 kHz	150 °C	-40 °C	0.8 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695EMSE#PBF	No	Adjustable	20 V	Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	0.8 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695IMSE-5#TRPBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	5 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695IMSE#PBF	No	Adjustable	20 V	Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	0.8 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695HMSE-3.3#PBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	150 °C	-40 °C	3.3 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695EMSE-5#PBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	125 °C	-40 °C	5 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1
Analog Devices Inc./Maxim Integrated LT3695HMSE-5#PBF	No	Fixed		Step-Down	1 A	2.2 MHz	250 kHz	150 °C	-40 °C	5 V	36 V	Buck	3.6 V	16-MSOP-EP 16-TFSOP	3 mm	Exposed Pad	0.118 in	Positive	Surface Mount	1

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R530 Reliability Data

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LT3695EMSE-3.3#TRPBF | Datasheet