LTC3637 Series

76V, 1A Step-Down Regulator

Catalog

76V, 1A Step-Down Regulator

Part	Function	Output Type	Voltage - Input (Min) [Min]	Package / Case	Topology	Voltage - Output (Max)	Supplier Device Package	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Mounting Type	Current - Output	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Package / Case
Analog Devices LTC3637MPDHC#TRPBF	Step-Down	Adjustable	4 V	16-WFDFN Exposed Pad	Buck	76 V	16-DFN (5x3)	1	-55 °C	150 °C	Positive	Surface Mount	1 A	0.8 V	76 V
Analog Devices LTC3637IMSE#PBF	Step-Down	Adjustable	4 V	16-TFSOP Exposed Pad	Buck	76 V	16-MSOP-EP	1	-40 °C	125 ¯C	Positive	Surface Mount	1 A	0.8 V	76 V	0.118 in 3 mm 12
Analog Devices LTC3637EDHC#PBF	Step-Down	Adjustable	4 V	16-WFDFN Exposed Pad	Buck	76 V	16-DFN (5x3)	1	-40 °C	125 ¯C	Positive	Surface Mount	1 A	0.8 V	76 V
Analog Devices LTC3637IMSE#TRPBF	Step-Down	Adjustable	4 V	16-TFSOP Exposed Pad	Buck	76 V	16-MSOP-EP	1	-40 °C	125 ¯C	Positive	Surface Mount	1 A	0.8 V	76 V	0.118 in 3 mm 12
Analog Devices LTC3637HMSE#PBF	Step-Down	Adjustable	4 V	16-TFSOP Exposed Pad	Buck	76 V	16-MSOP-EP	1	-40 °C	150 °C	Positive	Surface Mount	1 A	0.8 V	76 V	0.118 in 3 mm 12
Analog Devices LTC3637HMSE#TRPBF	Step-Down	Adjustable	4 V	16-TFSOP Exposed Pad	Buck	76 V	16-MSOP-EP	1	-40 °C	150 °C	Positive	Surface Mount	1 A	0.8 V	76 V	0.118 in 3 mm 12
Analog Devices LTC3637IDHC#TRPBF	Step-Down	Adjustable	4 V	16-WFDFN Exposed Pad	Buck	76 V	16-DFN (5x3)	1	-40 °C	125 ¯C	Positive	Surface Mount	1 A	0.8 V	76 V
Analog Devices LTC3637EMSE#TRPBF	Step-Down	Adjustable	4 V	16-TFSOP Exposed Pad	Buck	76 V	16-MSOP-EP	1	-40 °C	125 ¯C	Positive	Surface Mount	1 A	0.8 V	76 V	0.118 in 3 mm 12
Analog Devices LTC3637HDHC#PBF	Step-Down	Adjustable	4 V	16-WFDFN Exposed Pad	Buck	76 V	16-DFN (5x3)	1	-40 °C	150 °C	Positive	Surface Mount	1 A	0.8 V	76 V

Catalog

76V, 1A Step-Down Regulator

Key Features

• Wide Operating Input Voltage Range: 4V to 76V

• Internal 350mΩ Power MOSFET

• No Compensation Required

• Adjustable 100mA to 1A Maximum Output Current

• Low Dropout Operation: 100% Duty Cycle

• Low Quiescent Current: 12μA

• Wide Output Range: 0.8V to VIN

• 0.8V ±1% Feedback Voltage Reference

• Precise RUN Pin Threshold

• Internal and External Soft-Start

• Programmable 1.8V, 3.3V, 5V or Adjustable Output

• Few External Components Required

• Programmable Input Overvoltage Lockout

• Low Profile (0.75mm) 3mm × 5mm DFN and Thermally-Enhanced MSE16 Packages

• AEC-Q100 Qualified for Automotive Applications

Description

The LTC3637 is a high efficiency step-down DC/DC regulator with an internal high side power switch that draws only 12μA DC supply current while maintaining a regulated output voltage at no load.The LTC3637 can supply up to 1A load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC3637’s combination of Burst Mode®operation, integrated power switch, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.With its wide input range of 4V to 76V, and programmable overvoltage lockout, the LTC3637 is a robust regulator suited for regulating from a wide variety of power sources. Additionally, the LTC3637 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment.The LTC3637 is available in the thermally-enhanced 3mm × 5mm DFN and the MSE16 packages.APPLICATIONSIndustrial Control SuppliesMedical DevicesDistributed Power SystemsPortable InstrumentsBattery-Operated DevicesAutomotiveAvionics