BL1117-28ZY

BL1117 1A Low Dropout Voltage Regulator Outline Features Applications Selection Guide BL1117 XX X X Pin Configuration A Means Manufacture weeks B Means Manufacture LOT No. C: Means Output Voltage Value D: Means Temp. Range&Rohs Std http://www.belling.com.cn -1Total 13 Pages 8/8/2006 BL1117 Pin Description Ordering Information: Package Marking Output Voltage Package Type Block Diagrams http://www.belling.com.cn -2Total 13 Pages 8/8/2006 BL1117 Absolute Maximum Ratings Recommended Work Conditions Item Min Recommended Max Unit Electrical Characteristics (Table 1) http://www.belling.com.cn -3Total 13 Pages 8/8/2006 BL1117 http://www.belling.com.cn -4Total 13 Pages 8/8/2006 BL1117 Note Detailed Description: http://www.belling.com.cn -5Total 13 Pages 8/8/2006 BL1117 Typical Application Application Hints Output Voltage of Adjustable Version http://www.belling.com.cn -6Total 13 Pages 8/8/2006 BL1117 Explanation Thermal Considerations http://www.belling.com.cn -7Total 13 Pages 8/8/2006 BL1117 Typical Characteristics 1.BL1117 Dropout Voltage 2.BL1117 Line Regulation 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 200 400 600 T=90 3.5 3.4 3.3 3.2 3.1 3 1000 1200 1400 4 6 8 10 12 14 16 800 3.BL1117 Load Regulation 1 0.5 0 -0.5 -1 -50 -25 0 25 50 75 100 125 150 3.35 3.3 3.25 3.2 3.15 3.1 0 200 400 600 800 1000 1200 1400 1600 4.BL1117 Temperature Stability O 3.5 3 2.5 2 1.5 1 0.5 0 -50 -25 0 25 50 75 100 125 150 175 200 3 2 1 0 -1 -2 -50 -25 0 25 50 75 100 125 150 5.BL1117 Adj Pin Current VS. Temperature 6.BL1117 Load Transient Response Ch1: Load current change from 2mA to500 mA 70 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 ) 125 150 175 Ch2: Response of output voltage