TPS54373

0.9 ~ 3.3 V, 700kHz, PWM converter, HTSSOP20, TPS54373, Texas Instruments

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Price:: US $1.20~1.50 / piece [Get Latest Price]

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PartNumber:: TPS54373

Brand:: Texas Instruments - TI | Pack: DIP | D/C: 11+

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Products Upload time: 2012-03-13

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Part Number:TPS54373
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Product Summary

The TPS54373 is a low-input voltage high-output current synchronous buck PWM converter. It integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing. The applications of the TPS54373 include Low-Voltage, High-Density Distributed Power Systems, Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors, Broadband, Networking and Optical Communications Infrastructure and Power PC Series Processors.

Parametrics

TPS54373 absolute maximum ratings: (1)Input voltage range, VI, VIN, SS/ENA, SYNC: -0.3 V to 7 V; RT: -0.3 V to 6 V; VSENSE: ?0.3 V to 4V; BOOT: -0.3 V to 17 V; (2)Output voltage range, VO, VBIAS, COMP, PWRGD: -0.3 V to 7 V; PH: -0.6 V to 10 V; (3)Source current, IO, PH: Internally limited; COMP, VBIAS: 6 mA; (4)Sink current, IS, PH: 6 A; COMP: 6 mA;SS/ENA, PWRGD: 10 mA; (5)Voltage differential: ±0.3 V; (6)Operating virtual junction temperature range, TJ: -40 to 125℃; (7)Storage temperature, Tstg: -65 to 150℃; (8)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 300℃.

Features

TPS54373 features: (1)60-mΩ MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current; (2)Disabled Current Sinking During Start-Up; (3)Adjustable Output Voltage Down to 0.9 V With 1.0% Accuracy; (4)Wide PWM Frequency: Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz; (5)Synchronizable to 700 kHz; (6)Load Protected by Peak Current Limit and Thermal Shutdown; (7)Integrated Solution Reduces Board Area and Component Count.