LTC1778EGN-1 Datasheet

PMIC - Voltage Regulators - DC DC Switching Controllers


The LTC1778EGN-1 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages of a pair of external N-channel MOSFETs to ensure that the output stays within a safe operating range.The LTC4365 can withstand voltages between –40V and 60V and has an operating range of 2.5V to 34V, while consuming only 125μA in normal operation.Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling the MOSFETs as well as placing the device in a low current shutdown state. A fault output provides status of the gate pin pulling low. A fault is indicated when the part is in shutdown or the input voltage is outside the UV and OV set points. LTC1778EGN-1 Features • Wide Operating Voltage Range: 2.5V to 34V• Overvoltage Protection to 60V• Reverse Supply Protection to –40V• Blocks 50Hz and 60Hz AC Power• No Input Capacitor or TVS Required for Most Applications• Adjustable Undervoltage and Overvoltage Protection Range• Charge Pump Enhances External N-Channel MOSFET• Low Operating Current: 125μA• Low Shutdown Current: 10μAn Fault Status Output• Compact 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages LTC1778EGN-1 Applications • Portable Instrumentation• Industrial Automation• Laptops• Automotive


[{"Name":"Number of Outputs ","Value":"1"},{"Name":"Voltage - Supply ","Value":"4 V ~ 36 V "},{"Name":"Buck","Value":"Yes"},{"Name":"Boost","Value":"No"},{"Name":"Flyback","Value":"No"},{"Name":"Inverting ","Value":"No"},{"Name":"Doubler ","Value":"No"},{"Name":"Divider","Value":"No"},{"Name":"Isolated","Value":"No"},{"Name":"Operating Temperature ","Value":"-40°C ~ 85°C "}]

Manufacturer information


Diodes Incorporated is a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets.
Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.
Diodes’ corporate headquarters and Americas’ sales office are located in Plano, Texas and Milpitas, California. Design, marketing, and engineering centers are located in Plano; Milpitas; Taipei, Taiwan; Taoyuan City, Taiwan; Zhubei City, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Manchester and Shanghai, China. Diodes has assembly and test facilities located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world.

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