AAT AAT2505
The AAT2505 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a low dropout (LDO) linear regulator and a step-down converter with an input voltage range of 2.7V to 5.5V, making it ideal for applications with single cell lithium-ion / polymer batteries. The LDO has an independent input pin and is capable of delivering up to 300mA of current.GENERAL DESCRIPTION
The linear regulator has been designed for high-speed turn-on and turn-off performance, fast transient response, and good power supply rejection ratio (PSRR). Other features include low quiescent current, low dropout voltage, and a Power-OK (POK) open drain output signaling when VOUT is in regulation. The 600mA step-down converter is designed to operate with 1.4MHz of switching frequency, minimizing external component size and cost while maintaining a low 27µA no load quiescent current. AAT2505FEATURES
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● VIN Range: 2.7V to 5.5V 300mA LDO — 400mV Dropout Voltage at 300mA — High Accuracy: ±1.5% — Fast Line / Load Transient Response — Power OK Output 600mA Step-Down Converter — Up To 98% Efficiency — 27µA No Load Quiescent Current — Shutdown Current <1µA — Low RDS(ON) Integrated Power Switches — Fast Turn-On Time (150µs Typical) — Low Dropout 100% Duty Cycle — 1.4MHz Switching Frequency — Internal Soft Start Over-Temperature and Current Limit Pr...