TPS54062DGKR

TEXAS INSTRUMENTS  TPS54062DGKR  直流-直流开关降压逐步递减稳压器, 可调, 4.7V-60V输入, 800mV-58V输出, 50mA输出, MSOP-8

The is a 60V 0.5A Synchronous Step-down Converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 89µA. Using the enable pin, shutdown supply current is reduced to 1.7µA. Under-voltage lockout is internally set at 4.5V, but can be increased using the accurate enable pin threshold. The output voltage start-up ramp is controlled by the internal slow-start time. Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

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Integrated high-side and low-side MOSFET

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Peak current mode control

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Diode emulation for improved light-load efficiency

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89µA Typical operating quiescent current

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100 to 400kHz Adjustable switching frequency

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Synchronizes to external clock

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Internal slow-start

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0.8V ±2% Voltage reference

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Stable with ceramic output capacitors or low-cost aluminium electrolytic

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Cycle-by-cycle current limit, thermal and frequency foldback protection

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Green product and no Sb/Br

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.