BL8553 400mA CMOS Low Dropout Voltage Low consumption Regulator Outline Features Applications BL8553 Typical Application Circuit BL8553 Typical Performance Characteristic Application hints http://www.belling.com.cn - 1Total 13 Pages 8/8/2006 BL8553 Selection Guide Pin Assignment BL8553 XX X X Pin Description PIN Number SOT-23-3 SOT-89-3 PIN Name Function Vss Vin Vout NC NC PIN Number SOT-23-5(A) SOT-23-5(B) PIN Name Function Vin Vss CE NC Vout http://www.belling.com.cn - 2Total 13 Pages 8/8/2006 BL8553 Product Classification Output Product Name Voltage Package Type Package Marking Block Diagram Absolute Maximum Ratings http://www.belling.com.cn - 3Total 13 Pages 8/8/2006 BL8553 Recommended Work Conditions Item Min Recommended Max unit Electrical Characteristics Vout Vin Vout Vout Vin=Vout+1V f=10Hz to 100kHz,Cout=1uF F=100Hz,Iout=40mA,Cout=1u F Vout T Vout Vin=Vout+1.0V,Iout=40mA Vin=Vout+1.0V,Vout>2.0V*0.95 Vout Vin Vout Vout Vin=Vout+1V f=10Hz to 100kHz,Cout=1uF F=100Hz,Iout=40mA,Cout=1uF Vout T Vout http://www.belling.com.cn - 4Total 13 Pages 8/8/2006 BL8553 Vin=Vout+1.0V,Iout=40mA Vin=Vout+1.0V,Vout>3.0V*0.95 Vout Vin Vout Vout Vin=Vout+1V f=10Hz to 100kHz,Cout=1uF F=100Hz,Iout=40mA,Cout=1uF Vout T Vout Vin=Vout+1.0V,Iout=40mA Vin=Vout+1.0V,Vout>3.3V*0.95 Vout Vin Vout Vout Vin=Vout+1V f=10Hz to 100kHz,Cout=1uF F=100Hz,Iout=40mA,Cout=1uF Vout T Vout http://www.belling.com.cn - 5Total 13 Pages 8/8/2006 BL8553 Typical Application Circuit Application hints Explanation Typical Performance Characteristics 1.Load regulation http://www.belling.com.cn - 6Total 13 Pages 8/8/2006 BL8553 2. Line Regulation 3.Input Voltage transient response: http://www.belling.com.cn - 7Total 13 Pages 8/8/2006 BL8553 4.Load transient response: 5.Ripple rejection: http://www.belling.com.cn - 8Total 13 Pages 8/8/2006 BL8553 Package Outline http://www.belling.com.cn - 9Total 13 Pages 8/8/2006 BL8553 SOT-23-3: http://www.belling.com.cn - 10Total 13 Pages 8/8/2006 BL8553 http://www.belling.com.cn - 11Total 13 Pages 8/8/2006 BL8553 SOT-23-5: http://www.belling.com.cn - 12Total 13 Pages 8/8/2006 BL8553 http://www.belling.com.cn - 13Total 13 Pages 8/8/2006