AP2201 Datasheet | Chipown

Description The AP2201 Series is a CMOS PFM-control step-up switching regulator that mainly consists of a reference voltage source, an oscillator, and a parator, enabling products with a low ripple over a wide range, high efficiency, and high output current. Products with a fixed duty ratio of 75 % （ Lower Output Voltage ） or 88%(Higher Output Voltage) are also available. With the AP2201 Series, a step-up switching regulator can be configured by using an external coil, capacitor, and diode. A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent it from being damaged. This feature , along with the mini package and low current consumption, makes the AP2201 Series ideal for applications such as the power supply unit of portable equipment. Features z Low voltage operation: Startup at 0.9 V min (Iout 1 m A) guaranteed z Low input current: 2.3u A (Vout 3.3 V) z Duty ratio: 75 % Built-in fixed-type PFM controller z External parts: Coil, capacitor, and diode z Output voltage: Settable to between 1.5 to 6.0V accuracy of 2% Applications z Power supply for portable equipment such as digital cameras, electronic notebooks, and PDA z Power supply for audio equipment such as portable CD/MD players z Constant voltage power supply for cameras, video equipment, and munications equipment z Power supply for microputers Package z S0T-23-3 z SOT-89-3 Block Diagram Application Circuit Figure 1 4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.1 http://.chipown. Chipown Absolute Maximum Ratings PARAMETER Input voltage Output voltage Output Current Power dissipation SYMBOL VDD VOUT VCONT ILX PD SOT-23-3 SOT-89-3 MAXIMUM RATING Vss-0.3～Vss+10 Vss-0.3～Vss+10 Vss-0.3～Vss+10 300 150 500 UNIT V m A m W Operating ambient temperature Storage ambient temperature Topr Tstg -40～＋80 -40～＋125 ℃ Caution: The absolute maximum ratings are rated values exceeding which the...