BL8555 Low noise 150mA LDO regulator Features General Description Applications BL8555 Typical Performance Characteristics BL8555 Typical Application Circuit http://www.belling.com.cn -1Total 9 Pages 8/8/2006 BL8555 Selection Guide Pin Assignment BL8555 XX X X : Pin Description SC-70-5 Pin Number SOT-23-5A Symbol Function SOT-23-5B Product Classification Output Voltage Package Type Product Name Package Type Product Name Package Type Product Name 1.2V 1.5V 1.8V 2.1V 2.5V 2.8V 3.0V 3.2V 3.3V 3.5V SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A SOT-23-5A BL8555-12PRA BL8555-15PRA BL8555-18PRA BL8555-21PRA BL8555-25PRA BL8555-28PRA BL8555-30PRA BL8555-32PRA BL8555-33PRA BL8555-35PRA SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B SOT-23-5B BL8555-12PRB BL8555-15PRB BL8555-18PRB BL8555-21PRB BL8555-25PRB BL8555-28PRB BL8555-30PRB BL8555-32PRB BL8555-33PRB BL8555-35PRB SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 BL8555-12PQ BL8555-15PQ BL8555-18PQ BL8555-21PQ BL8555-25PQ BL8555-28PQ BL8555-30PQ BL8555-32PQ BL8555-33PQ BL8555-35PQ 5.0V SOT-23-5A BL8555-50PRA SOT-23-5B BL8555-50PRB SC-70-5 BL8555-50PQ http://www.belling.com.cn -2Total 9 Pages 8/8/2006 BL8555 Product Marking information: SC-70-5 SOT23-5A SOT23-5B Block Diagram http://www.belling.com.cn -3Total 9 Pages 8/8/2006 BL8555 Absolute Maximum Ratings Recommended Work Conditions Item Min Recommended Max unit Electrical Characteristics BL8555, for arbitrary output voltage Symbol Parameter Conditions Min Typ Max Units Vout Vin Vout Vout Iout Vout T Vout http://www.belling.com.cn -4Total 9 Pages 8/8/2006 BL8555 Electrical Characteristics by Output Voltage Output Voltage Vout (V) Dropout Voltage, VDIF (V) Condition Typ. Max. Typical Application Circuit Application hints Explanation http://www.belling.com.cn -5Total 9 Pages 8/8/2006 BL8555 Typical Performance Characteristics 1) Output Voltage vs. Output Current (with output short protection) 2) Output Voltage vs. Input Voltage 3) Dropout Voltage vs. Output Current 4) Supply Current vs. Input Voltage http://www.belling.com.cn -6Total 9 Pages 8/8/2006 BL8555 5) Ripple rejection vs. Frequency 6) Line transient response Vin Vout 7) Load transient response Vout Iout = 100mA Iout = 50mA http://www.belling.com.cn -7Total 9 Pages 8/8/2006 BL8555 Package Information: Type II Type I http://www.belling.com.cn -8Total 9 Pages 8/8/2006 BL8555 http://www.belling.com.cn -9Total 9 Pages 8/8/2006