(China (Mainland))
Product Summary
The TC110303ECTTR is a step-up (Boost) switching controller that furnishes output currents of up to 300mA while delivering a typical efficiency of 84%. The TC110303ECTTR normally operates in pulse width modulation mode (PWM), but automatically switches to pulse frequency modulation (PFM) at low output loads for greater efficiency. Supply current draw for the 100kHz version is typically only 50μA, and is reduced to less than 0.5μA when the SHDN input is brought low. Regulator operation is suspended during shutdown. The TC110303ECTTR accepts input voltages from 2.0V to 10.0V, with a guaranteed start-up voltage of 0.9V.The applications of the TC110303ECTTR include palmtops, battery-operated systems, positive LCD bias generators, portable communicators.
Parametrics
TC110303ECTTR absolute maximum ratings: (1)Voltage on VDD, VOUT, SHDN Pins: -0.3V to +12V; (2)EXT output current: ±100mA pk; (3)Voltage on EXT Pin: -0.3V to VDD +0.3V; (4)Power dissipation: 150mW; (5)Operating temperature range: -40℃ to +85℃; (6)Storage temperature range: -40℃ to +125℃.
Features
TC110303ECTTR features: (1)Assured Start-up at 0.9V; (2)50μA (Typ) Supply Current (fOSC = 100kHz); (3)300mA Output Current @ VIN ≥ 2.7V; (4)0.5μA Shutdown Mode; (5)100kHz and 300kHz Switching Frequency Options; (6)Programmable Soft-Start; (7)84% Typical Efficiency; (8)Small Package: 5-Pin SOT-23A.
Diagrams
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 TC110303ECTTR |
Microchip Technology |
Switching Converters, Regulators & Controllers PFM/PWM Step-Up |
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TC110303ECTTR |
Microchip Technology |
Switching Converters, Regulators & Controllers PFM/PWM Step-Up |
Data Sheet |
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TC110331ECTTR |
Microchip Technology |
Switching Converters, Regulators & Controllers PFM/PWM Step-Up |
Data Sheet |
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TC110333ECTTR |
Microchip Technology |
Switching Converters, Regulators & Controllers PFM/PWM Step-Up |
Data Sheet |
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TC110503ECTTR |
Microchip Technology |
Switching Converters, Regulators & Controllers PFM/PWM Step-Up |
Data Sheet |
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TC1107-2.7VOATR |
Microchip Technology |
Low Dropout (LDO) Regulators 300mA LDO w/Shdn |
Data Sheet |
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TC1107-2.5VUATR |
Microchip Technology |
Low Dropout (LDO) Regulators 300mA LDO w/Shdn |
Data Sheet |
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