300mA Inductorless Step-Down Converter

Manufacturer's part number :

AAT3183IJS-1.5-T1

NATO number :

AAT3183

Manufacturer Skyworks

Skyworks

Description :

The AAT3183 is a high efficiency step-down charge pump converter providing up to 300mA of output current. The 1/2x (gain) charge pump converter topology provides enhanced efficiency over conventional LDO regulators and requires only three low cost ceramic capacitors. No inductor is required; saving space and cost when compared to inductive switching regulators. The AAT3183 typically consumes 35µA of no load (zero output current) quiescent current, making it ideal for portable battery powered systems. Shutdown current is less than 1µA when the device is disabled. The AAT3183 soft-start prevents excessive inrush current while providing monotonic turn-On characteristics. The device includes integrated short-circuit and over-temperature (thermal) protection to safeguard system components. The AAT3183 is available in a Pb-free 2.0x2.1mm SC70JW-8 package. Operating temperature range is -40ºC to +85ºC.

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    Features

    • VIN Range: 2.7V to 5.5V
    • VOUT: 1.5V
    • 300mA Maximum Output Current
    • Ultra-Small Solution for Portable Applications
    • Small Footprint
    • Only Three External Ceramic Capacitors Required
    • No Inductor
    • High Efficiency over the Output Current Range
    • Excellent Transient Performance
    • 35μA Typical Quiescent Current
    • <1.0μA Shutdown Current
    • Up to 2MHz Switching Frequency
    • Integrated Soft-Start
    • Short-Circuit and Thermal Protection
    • 2.0x2.1mm SC70JW-8 Package
    • -40°C to 85°C Temperature Range

    How wireless works

Features Similar products
Control scheme PFM  

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Switching frequency (kHz) 2000  
Max Input Voltage (V) 2.7 to 5.5  
Output Voltage (V) 1.5  
Typ. Active Current (µA) 35  
Typ. Output Voltage Accuracy (%) ± 2  
Output Capacitor Type Ceramic Capacitor  
Output Current (mA) 300  
Operating Temperature (°C) -40 to +85  
Package SC70JW-8