(Hong Kong)
Product Summary
The LT1777IS#TR is a Buck (step-down) regulator designed for noise sensitive applications. The LT1777IS#TR contains a dI/dt limiting circuit programmed via a small external inductor in the switching path. Internal circuitry of the LT1777IS#TR also generates controlled dV/dt ramp rates. The LT1777IS#TR can accept operating input voltages as high as 48V, and contains an output switch rated at 700mA peak current. Applications of the LT1777IS#TR include: Automotive Cellular and GPS Receivers, Telecom Power Supplies, Industrial Instrument Power Supplies.
Parametrics
LT1777IS#TR absolute maximum ratings: (1) Supply Voltage: 48V; (2) Switch Voltage (Vin - Vsw) : 51V; (3) SHDN, SYNC Pin Voltage: 7V; (4) Vcc Pin Voltage:30V; (5) FB Pin Voltage: 3.0V; (6) Operating Junction Temperature Range: -40°C to 125°C; (7) Storage Temperature Range: -65°C to 150°C; (8) ATTACH PADDLE FOR HEATLead Temperature (Soldering, 10 sec) : 300°C.
Features
LT1777IS#TR features: (1) Programmable dI/dt Limit; (2) Internally Limited dV/dt; (3) High Input Voltage: 48V Max; (4) 700mA Peak Switch Rating; (5) True Current Mode Control; (6) 100kHz Fixed Operating Frequency; (7) Synchronizable to 250kHz; (8) Low Supply Current in Shutdown: 30μA; (9) Low Thermal Resistance 16-Pin SO Package.
Diagrams
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 LT1777IS#TR |
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IC REG BUCK ADJ 0.7A 16SOIC |
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LT1777IS#TRPBF |
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IC REG BUCK ADJ 0.7A 16SOIC |
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