TPS62050DGSR

TEXAS INSTRUMENTS  TPS62050DGSR  芯片, 同步降压转换器, MSOP-10, 整卷

The is a high-efficiency synchronous step-down DC-to-DC Converter ideally suited for systems powered from a 1- or 2-cell Li-ion battery or from a 3- to 5-cell NiCd, NiMH or alkaline battery. The TPS6205x device is synchronous pulse width modulation PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation PFM mode at light load currents. Operating frequency is typically 850kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600kHz to 1.2MHz. For low noise operation, the converter can be programmed into forced-fixed frequency in PWM mode. In shutdown mode, the current consumption is reduced to less than 2µA.

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High efficiency over a wide load current range in power-save mode

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100% Maximum duty cycle for lowest dropout

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Low-noise operation in forced fixed-frequency PWM operation mode

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Internal soft-start

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Over-temperature and overcurrent protection

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Up to 1.2MHz synchronizable to external clock

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95% High efficiency

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12µA Typical quiescent current

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Green product and no Sb/Br