BL8503 250mA CMOS Low Dropout Voltage Low consumption Regulator Outline Features Applications BL8503 Typical Performance Characteristic BL8503 Typical Application Circuit Output Voltage VS. Output Current(Vout=1.5V) 1.6 1.5 1.4 1.3 1.2 1.1 1 0 Application hints http://www.belling.com.cn - 1Total 12 Pages 100 200 300 8/8/2006 BL8503 Selection Guide Pin Assignment BL8503 XX X X X Pin Description Pin number SOT-23-3 SOT-89-3 SM SOT-89-3 (SA) SOT-89-3 (SB) PIN Name Function Vss Vin Vout NC NC http://www.belling.com.cn - 2Total 12 Pages 8/8/2006 BL8503 Product Classification Product Name Output Voltage http://www.belling.com.cn Package Type - 3Total 12 Pages Package Marking 8/8/2006 BL8503 Block Diagram Absolute Maximum Ratings Recommended Work Conditions Item Min Recommended Max unit Electrical Characteristics Vout Vin Vout Vout http://www.belling.com.cn - 4Total 12 Pages 8/8/2006 BL8503 Vout T Vout Vout Vin Vout Vout Vout T Vout Typical Application Circuit Application hints Explanation http://www.belling.com.cn - 5Total 12 Pages 8/8/2006 BL8503 Typical Performance Characteristics 1.Load regulation Output Voltage VS Output Current(Vout=1.5V) Output Voltage VS Output Current(Vout=3.0V) 1.6 3.05 1.5 3 1.4 2.95 1.3 2.9 1.2 2.85 1.1 1 2.8 0 50 100 150 200 250 300 0 50 100 150 200 250 300 9 10 2.Line Regulation Line regulation Vout=1.5V) Line regulation (Vout=3.0V) 1.51 3.07 1.505 3.05 1.5 3.03 1.495 3.01 2.99 1.49 2.97 1.485 2.95 1.48 2.93 1 2 3 4 5 6 7 8 3 4 5 6 7 8 3.Dropout Voltage Dropout Voltage (Vout=3.0V) Dropout Voltage (Vout=1.5V) 3.05 3.04 3.03 3.02 3.01 3 2.99 2.98 2.97 2.96 1.6 1.5 1.4 1.3 1.2 1.1 1 1.5 1.8 2.1 http://www.belling.com.cn 2.4 2.7 3 3 - 6Total 12 Pages 3.2 3.4 3.6 3.8 4 8/8/2006 BL8503 4 Input Voltage transient response Vout=1.5V,Iout=1mA Input Voltage transient response Vout=1.5V,Iout=10mA Input Voltage transient response Vout=3.0V,Iout=10mA 5 Load transient response http://www.belling.com.cn Vout=1.5V Input Voltage transient response Vout=3.0V,Iout=1mA Load transient response - 7Total 12 Pages Vout=3.0V 8/8/2006 BL8503 Package Outline http://www.belling.com.cn - 8Total 12 Pages 8/8/2006 BL8503 SOT-23-3: http://www.belling.com.cn - 9Total 12 Pages 8/8/2006 BL8503 http://www.belling.com.cn - 10Total 12 Pages 8/8/2006 BL8503 SOT-23-5: http://www.belling.com.cn - 11Total 12 Pages 8/8/2006 BL8503 http://www.belling.com.cn - 12Total 12 Pages 8/8/2006