TPS5430DDAG4

TEXAS INSTRUMENTS  TPS5430DDAG4  直流-直流开关降压逐步递减稳压器, 可调, 5.5V-36V输入, 1.22V-31V输出, 3A输出, PPAD-8

The is an adjustable output step down converter in 8 pin SO PowerPAD package. This high output current PWM converter integrates a low resistance and high side N channel MOSFET. It features high performance voltage error amplifier, undervoltage lockout circuit, internally set slow start circuit and voltage feed forward circuit to improve the transient response. Using the ENA pin shutdown supply current is reduced to 18µA typically. Other features include an active high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count the TPS5430 feedback loop is internally compensated. The TPS5430 regulates a wide variety of power sources including 24V bus.

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Wide input voltage range from 5.5V to 36V

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Up to 3A continuous 4A peak output current

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High efficiency up to 95% enabled by 110mohm integrated MOSFET switch

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Wide output voltage range from 1.22V to 31V with 1.5% initial accuracy

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Internal compensation minimizes external parts count

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Fixed 500KHz switching frequency for small filter size

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Improved line regulation and transient response by input voltage feed forward

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System protected by overcurrent limiting, overvoltage protection and thermal shutdown

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Operating temperature range -40°C to 125°C

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