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BL8550 Dataheets PDF



Part Number BL8550
Manufacturers SHANGHAI BELLING
Logo SHANGHAI BELLING
Description Low Dropout Voltage Regulator
Datasheet BL8550 DatasheetBL8550 Datasheet (PDF)

BL8550 400mA Low Dropout Voltage Regulator Outline: BL8550 is a series of low dropout three terminal regulators with a dropout of 1.22V at 400mA load current. Other than a fixed version(Vout= 1.8V,2.5V,2.85V,3.3V,5V), BL8550 has an adjustable version, which can provide an output voltage from 1.25 to 13.8V with only two external resistors. BL8550 offers thermal shut down and current limit functions, to assure the stability of chip and power system. And it uses trimming technique to guarantee out.

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BL8550 400mA Low Dropout Voltage Regulator Outline: BL8550 is a series of low dropout three terminal regulators with a dropout of 1.22V at 400mA load current. Other than a fixed version(Vout= 1.8V,2.5V,2.85V,3.3V,5V), BL8550 has an adjustable version, which can provide an output voltage from 1.25 to 13.8V with only two external resistors. BL8550 offers thermal shut down and current limit functions, to assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. BL8550 is available in SOT-89-3 power Package. Lead free package is also available on command. Selection Guide: BL8550-XX X X Package Type: A:SOT-89-3 B:SOT-89-3 C:SOT-89-3 Features: • Other than a fixed version and an adjustable version, output value can be customized on command. • Maximum output current is 400mA • Output voltage accuracy is within ±2% • Range of operation input voltage: Max 18V • Line regulation: 0.2% • Load regulation: 0.4% • Storage Temperature: -50℃~140℃ Applications: • Power Management for Computer Mother Board, Graphic Card • LCD Monitor and LCD TV • DVD Decode Board • Pin Assignment: Product Type BL8550-□□CA Pin configuration BL8550-□□CB Temperature Range: C:Standard( default ) P:Standard ( customized, Lead free Package) BL8550-□□CC Output Voltage: 18……1.8V 25……2.5V 28……2.85V 33……3.3V 50……5.0V http://www.belling.com.cn - 1Total 6 Pages 1/29/2008 Product Classfication: Product Name BL8550-18CA BL8550-25CA BL8550-28CA BL8550-33CA BL8550-50CA BL8550-18CB BL8550-25CB BL8550-28CB BL8550-33CB BL8550-50CB BL8550-18CC BL8550-25CC BL8550-28CC BL8550-33CC BL8550-50CC Output Value 1.8 V 2.5 V 2.85 V 3.3 V 5.0V 1.8 V 2.5 V 2.85 V 3.3 V 5.0V 1.8 V 2.5 V 2.85 V 3.3 V 5.0V Block Diagrams: Package type SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 BL8550 Package Marking Absolute Maximum Ratings: Maximum Input Voltage----------------------------------------------------------------------------18V Operating Junction Temperature (TJ) ----------------------------------------------------------150°C Environment Temperature (TA) ------------------------------------------------------------------85°C Storage Temperature (Ts)--------------------------------------------------------------------------50~140°C Lead Temperature and Time ---------------------------------------------------------------------260°C,10S Power Dissipation SOT-89-3------------------------------------------------------------------------------------------ 0.5W http://www.belling.com.cn - 2Total 6 Pages 1/29/2008 BL8550 Recommended Work Conditions: Item Input Voltage Range Operating junction Temperature Min Recommended Max 18 -40 125 Units V °C Electrical Characteristics (Table 1): Symbol Vout ∆Vout ∆Vout Dropout Voltage Current Limit Iq ∆Vout ∆T ⋅Vout Prameter Output Voltage Line Regulation (note1) Load Regulatiion (note1,2) Input-Out.


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