AS1323 1.6A Quiescent Current, Single Cell, DC-DC Step-up Converter The AS1323 high-efficiency step-up DC-DC converter was General Description 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 variants with Vout of 2.7V, 3.0V, and 3.3V. It is perfect for a wide variety of applications where low quiescent currents and small form factors are critical. 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. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS1323, 1.6A Quiescent Current, Single Cell, DC-DC Step-up Converter are listed below: Figure 1: Added Value of Using AS1323 Benefits Features 1.6A Quiescent Current Extended battery life Shutdown Current 0.1A Efficiency Up to 85% Input Voltage Range: 0.75 to 2V Fixed Output Voltages: 2.7, 3.0 and 3.3V Output Voltage Accuracy: 3% Suitable to wide variety of applications Up to 100mA Output Current Output Disconnect in Shutdown Guaranteed 0.95V Start-Up Voltage No External Diode or FETs Needed Enables cost effective PCB design TSOT23-5 Package ams Datasheet Page 1 v1-11 2014-Dec-16 Document FeedbackAS13 23 Gene ral Des c rip t ion Applications 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. Figure 2: Typical Operating Circuit 10H VBATT 1 5LX 1 5 VBATT LX 10F 2 VSS 2 AS1323 AS1323 VSS 3 4 SHDNN 3 4 VOUT SHDNN VOUT 10F Page 2 ams Datasheet Document Feedback v1-11 2014-Dec-16