LT1936 Series

1.4A, 500kHz Step-Down Switching Regulator

Catalog

1.4A, 500kHz Step-Down Switching Regulator

Part	Topology	Supplier Device Package	Package / Case	Package / Case [custom]	Current - Output	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Voltage - Input (Min) [Min]	Number of Outputs	Output Type	Voltage - Input (Max) [Max]	Function	Voltage - Output (Max) [Max]	Frequency - Switching	Mounting Type
Analog Devices LT1936EMS8E#TRPBF	Buck	8-MSOP-EP	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	1.4 A	1.2 V	85 °C	-40 °C	Positive	3.6 V	1	Adjustable	36 V	Step-Down	33.12 V	500 kHz	Surface Mount
Analog Devices LT1936EMS8E#PBF	Buck	8-MSOP-EP	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	1.4 A	1.2 V	85 °C	-40 °C	Positive	3.6 V	1	Adjustable	36 V	Step-Down	33.12 V	500 kHz	Surface Mount
Analog Devices LT1936HMS8E#PBF	Buck	8-MSOP-EP	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	1.4 A	1.2 V	150 °C	-40 °C	Positive	3.6 V	1	Adjustable	36 V	Step-Down	33.12 V	500 kHz	Surface Mount

Catalog

1.4A, 500kHz Step-Down Switching Regulator

Key Features

• Wide Input Range: 3.6V to 36V

• Short-Circuit Protected Over Full Input Range

• 1.9A Guaranteed Minimum Switch Current

• 5V at 1.4A from 10V to 36V Input

• 3.3V at 1.4A from 7V to 36V Input

• 5V at 1.2A from 6.3V to 36V Input

• 3.3V at 1.2A from 4.5V to 36V Input

• Output Adjustable Down to 1.20V

• 500kHz Fixed Frequency Operation

• Soft-Start

• Uses Small Ceramic Capacitors

• Internal or External Compensation

• Low Shutdown Current: <2µA

• Thermally Enhanced 8-Lead MSOP Package

Description

The LT1936 is a current mode PWM step-down DC/DC converter with an internal 1.9A power switch, packaged in a tiny, thermally enhanced 8-lead MSOP. The wide input range of 3.6V to 36V makes the LT1936 suitable for regulating power from a wide variety of sources, including automotive batteries, 24V industrial supplies and unregulated wall adapters. Its high operating frequency allows the use of small, low cost inductors and ceramic capacitors, resulting in low, predictable output ripple.Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against shorted outputs, and soft-start eliminates input current surge during startup. Transient response can be optimized by using external compensation components, or board space can be minimized by using internal compensation. The low current (<2µA) shutdown mode enables easy power management in battery-powered systems.ApplicationsAutomotive Battery RegulationIndustrial Control SuppliesUnregulated Wall Adapters