(Hong Kong)
Product Summary
The LT1765ES8#TR is a 1.25MHz monolithic buck switching regulator. A high efficiency 3A, 0.09Ω switch is included on the die together with all the control circuitry required to construct a high frequency, current mode switching regulator. Current mode control provides fast transient response and excellent loop stability. The applications of the LT1765ES8#TR include DSL Modems, Portable Computers, Regulated Wall Adapters, Battery-Powered Systems and Distributed Power.
Parametrics
LT1765ES8#TR absolute maximum ratings: (1)FB Input Current, Adj: –0.25μA typ; –0.5μA max; (2)FB Input Resistance: 10.5kΩ min, 15kΩ typ, 21kΩ max; (3)FB Error Amp Voltage Gain: 150 min, 350 typ; (4)FB Error Amp Transconductance: 500μMho min, 850μMho typ, 1300μMho max; (5)VC Pin Source Current: 80μA min, 120μA typ, 160μA max; (6)VC Pin Sink Current: 70μA min, 110μA typ, 180μA max; (7)VC Pin to Switch Current Transconductance: 5 A/V typ; (8)VC Pin Minimum Switching Threshold: 0.4 V typ; (9)VC Pin 3A ISW Threshold: 0.9 V typ; (10)Maximum Switch Duty Cycle: 85% typ, 90 % max; (11)Minimum Boost Voltage Above Switch: 1.8V typ, 2.7 V max.
Features
LT1765ES8#TR features: (1)3A Switch in a Thermally Enhanced 16-Lead TSSOP or 8-Lead SO Package; (2)Constant 1.25MHz Switching Frequency; (3)Wide Operating Voltage Range: 3V to 25V; (4)High Efficiency 0.09Ω Switch; (5)1.2V Feedback Reference Voltage; (6)Uses Low Profile Surface Mount Components; (7)Low Shutdown Current: 15μA; (8)Synchronizable to 2MHz; (9)Current Mode Loop Control; (10)Constant Maximum Switch Current Rating at All Duty Cycles.
Diagrams
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 LT1765ES8#TR |
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IC REG BUCK ADJ 3A 8SOIC |
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LT1765ES8#TRPBF |
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IC REG BUCK ADJ 3A 8SOIC |
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