(Hong Kong)
Product Summary
The TPS62040DGQ is a high efficiency synchronous step-down dc-dc converter optimized for battery powered portable applications. The device is ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the devices support low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS62040DGQ operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. The TPS62040DGQ supports up to 1.2-A load current. The applicaitons of the device include PDA, Pocket PC and Smart Phones, USB Powered Modems, CPUs and DSPs, PC Cards and Notebooks, xDSL Applications and Standard 5-V to 3.3-V Conversion..
Parametrics
TPS62040DGQ absolute maximum ratings: (1)Supply voltage VIN (2): -0.3 V to 7 V; (2)Voltages on EN, MODE, FB, SW(2): -0.3 V to VCC +0.3 V; (3)Continuous power dissipation See Dissipation Rating Table; (4)Operating junction temperature range: -40℃ to 150℃; (5)Storage temperature range: -65℃ to 150℃; (6)Lead temperature (soldering, 10 sec): 260℃.
Features
TPS62040DGQ features: (1)Up to 95% Conversion Efficiency; (2)Typical Quiescent Current: 18 μA; (3)Load Current: 1.2 A; (4)Operating Input Voltage Range: 2.5 V to 6.0 V; (5)Switching Frequency: 1.25 MHz; (6)Adjustable and Fixed Output Voltage; (7)Power Save Mode Operation at Light load Currents; (8)100% Duty Cycle for Lowest Dropout; (9)Internal Softstart; (10)Dynamic Output Voltage Positioning; (11)Thermal Shutdown; (12)Short-Circuit Protection; (13)10 Pin MSOP PowerPad. Package; (14)10 Pin QFN 3 X 3 mm Package.
Diagrams
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 TPS62040DGQ |
Texas Instruments |
DC/DC Switching Regulators Adj 1.2A Hi-Eff Step-Down |
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TPS62040DGQG4 |
Texas Instruments |
DC/DC Switching Regulators Adj 1.2A Hi-Eff Step-Down |
Data Sheet |
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TPS62040DGQR |
Texas Instruments |
DC/DC Switching Regulators Adj 1.2A Hi-Eff Step-Down |
Data Sheet |
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TPS62040DGQRG4 |
Texas Instruments |
DC/DC Switching Regulators Adj 1.2A Hi-Eff Step-Down |
Data Sheet |
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