The CS51411 demonstration board is a buck regulator with a current of 1.0 A and a voltage of 3.3 V that runs at 260 or 520 kHz (CS51413). The switching frequency can be synchronized to a higher frequency by sending clock signals to the SYNC input. When the SHDNB input is pushed low, the converter output is shut off and the power consumption is lowered. The regulator provides superior line and load regulation due to the use of V2 control. The load transient responsiveness is also improved with this control approach.
Features
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Built-In Soft-Start to Eliminate Any In–Rush Current
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High Energy Transfer Efficiency of 83% at 1.0 A Load
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Line Regulation Better Than 0.1%
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Load Regulation Better Than 0.4%
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V2 Control for Superior Line and Load Regulation
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Small Board Space Requiring Only 1.0 × 0.7 in.2
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Total of 11 Components Including IC
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1.5 A Peak Current Protection that Folds Back 30% in Overload Situations
Specification
Technical
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Part Status－Active
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Moisture Sensitivity Level (MSL)－1 (Unlimited)
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Voltage - Input－4V~16V
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Current - Output－1.5A
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Voltage - Output－3.3V
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Frequency - Switching－260kHz1 (Unlimited)
Construction
Where to Use
Cable modems, plasma electronics, data equipment communications, robots, DC/DC power supply, FPGA power supplies, set-top boxes, LCD displays, routers, industrial applications, medical and automated test equipment, and many more applications employ buck regulators.
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