AS1323 Step-Up Converter IC

Description

The AS1323 high-efficiency step-up DC-DC converter was designed specifically for single-cell, battery-powered devices where lowest quiescent current and high efficiency are essential.

The compact device is available in three fixed-voltage variations and is perfect for a wide variety of applications where extremely-low quiescent currents and very-small form factors are critical.

The devices are available as the standard products shown in the following table.

Integrated boot circuitry ensures start-up even with very high load currents. The true output disconnect feature completely disconnects the output from the battery during shutdown.

The device is available in a TSOT23-5 pin package.

주요 특징

• Input Voltage Range: 0.75V to 2V
• Fixed Output Voltages: 2.7V, 3.0V and 3.3V
• Up to 100mA Output Current
• 1.6μA Quiescent Current
• Shutdown Current: 0.1μA
• Output Voltage Accuracy: ±3%
• Efficiency: Up to 85%
• No External Diode or FETs Needed
• Output Disconnect in Shutdown
• Guaranteed 0.95V Start-Up Voltage
• TSOT23-5 Package

적용분야

The devices are ideal for single-cell portable devices including mobile phones, MP3 players, PDAs, remote controls, personal medical devices, wireless transmitters and receivers, and any other battery-operated, portable device.

Block diagram for AS1323 Step-Up Converter IC