BL8503 250mA CMOS Low Dropout Voltage Low consumption Regulator Outline： Features： Low Power Consumption：3.0uA（Typ.） BL8503 series is a group of positive voltage output, low power consumption, low dropout voltage, three terminal regulator. It can provide 250mA output current when input / output voltage differential drops to 400mV（Vin =4.0V、Vout=3.0V）。The very low power consumption of BL8503 （Iq=3.0uA）can greatly improve natural life of batteries. Maximum Output Current： 250mA Small Dropout Voltage： 170mV@100mA (Vout=3.0V) 400mV@250mA (Vout=3.0V) Input Voltage Range：1.5V～10V Output Voltage Range：1.2V~6.0V （customized on command in 0.1V steps） BL8503 can provide output value in the range of 1.2V~6.0V in 0.1V steps. It also can customized on command. Highly Accurate：±2%(±1% customized） Output Current Limit Applications： BL8503 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. Battery Powered equipment Power Management of MP3、PDA、DSC、 Mouse、PS2 Games BL8503 has well load transient response and good temperature characteristic, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within± 2%. Reference Voltage Source Regulation after Switching Power BL8503 is available in SOT-89-3、SOT23-3,TO-92 packages which is lead free，it also can available in these packages with lead. BL8503 Typical Performance Characteristic： BL8503 Typical Application Circuit Output Voltage （V ） Output Voltage VS. Output Current(Vout=1.5V) 1.6 1.5 1.4 1.3 1.2 1.1 1 0 Application hints： 100 200 300 Output Current（mA） NOTE1：Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is recommended. NOTE2：Output capacitor (Cout=1uF) is recommended in all application to assure the stability of circuit. Tantalum capacitor is recommended. http://www.belling.com.cn - 1Total 12 Pages 10/24/2016 BL8503 Selection Guide： Pin Assignment： Product Classification BL8503-XX X X X Pin Configuration BL8503-□□□PRM Packages： RM：SOT-23-3 SM：SOT-89-3 (Default) SA：SOT-89-3 SB：SOT-89-3 T：TO-92 BL8503-□□□PSM Output accucy： Default，±2％ 1： ±1％ （customized） Temperature range： P：Standard （Default、lead free） C：Standard （customized） Output Voltage： 12……1.2V 18……1.8V 21……2.1V 25……2.5V 28……2.8V 30……3.0V 33……3.3V 35……3.5V 40……4.0V 45……4.5V …… 50……5.0V 60……6.0V BL8503-□□□PSA BL8503-□□□PSB BL8503-□□□PT Pin Description： Pin number SOT-23-3 SOT-89-3 （SM） 1 3 2 1 2 3 http://www.belling.com.cn SOT-89-3 (SA) 1 3 2 SOT-89-3 (SB) 2 3 1 TO-92 1 2 3 - 2Total 12 Pages PIN Name Function Vss Vin Vout Ground Supply voltage input Output Voltage 10/24/2016 BL8503 Product Classification： Product Name Output Voltage Package Type BL8503-12PRM BL8503-15PRM BL8503-21PRM BL8503-25PRM BL8503-30PRM ---------BL8503-50PRM BL8503-12PSM BL8503-15PSM BL8503-21PSM BL8503-25PSM BL8503-30PSM ---------BL8503-50PSM BL8503-12PSA BL8503-15PSA BL8503-21PSA BL8503-25PSA BL8503-30PSA ---------BL8503-50PSA BL8503-12PSB BL8503-15PSB BL8503-21PSB BL8503-25PSB BL8503-30PSB ---------BL8503-50PSB BL8503-12PT BL8503-15PT BL8503-21PT BL8503-25PT BL8503-30PT ---------BL8503-50PT 1.2V 1.5V 2.1V 2.5V 3.0V ---------5.0V 1.2V 1.5V 2.1V 2.5V 3.0V ---------5.0V 1.2V 1.5V 2.1V 2.5V 3.0V ---------5.0V 1.2V 1.5V 2.1V 2.5V 3.0V ---------5.0V 1.2V 1.5V 2.1V 2.5V 3.0V ---------5.0V SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 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 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 SOT-89-3 TO-92 TO-92 TO-92 TO-92 TO-92 TO-92 TO-92 http://www.belling.com.cn - 3Total 12 Pages Package Marking 10/24/2016 BL8503 Block Diagram： Absolute Maximum Ratings： Max input voltage ---------------------------------------------------------------------------------- 10V Junction Temperature (TJ) ----------------------------------------------------------------------- 125C Ambient Temperature(TA) ------------------------------------------------------------------------ -40C～85C Power Dissipation SOT-23-3 ------------------------------------------------------------------------------------------ 0.15W SOT-23-5 ------------------------------------------------------------------------------------------ 0.25W SOT-89-3 ------------------------------------------------------------------------------------------ 0.5W Storage Temperature(Ts) ------------------------------------------------------------------------ -45C～150C Lead Temperature and Time -------------------------------------------------------------------- 260C,10S Recommended Work Conditions： Item Input Voltage Range Ambient Temperature Min Recommended -40 Max 8 +125 unit V C Electrical Characteristics： （Test Conditions：Cin=1uF,Cout=1uF,TA=25C, unless otherwise specified. ） BL8503-1.5V Symbol Parameter Conditions Min Typ Max Vin Input Voltage 8 Vout Output Voltage 1.47 1.5 1.53 Maximum Output Iout(Max.) Vin=2.5V,Vout>1.47 250 Current Dropout Input-Output Iout=100mA 270 400 Voltage Voltage Differential Units V V mA mV Vout Vin Vout Line Regulation Iout=40mA 1.6V≤Vin≤8V 0.2 0.3 %/V Vout Load Regulation Vin=2.5V 1mA≤Iout≤100mA 20 40 mV Iq Quiescent Current Vin=2.5V 3.0 5.0 uA http://www.belling.com.cn - 4Total 12 Pages 10/24/2016 BL8503 Vout T Vout Output Voltage Temperature Coefficient BL8503-1.8V Symbol Vin Vout Parameter Input Voltage Output Voltage Maximum Output Iout(Max.) Current Dropout Input-Output Voltage Voltage Differential Iout=10mA Conditions Vin=2.8V,Vout>1.764 50 Min Typ 1.764 1.8 ppm/C Max 8 1.836 250 Units V V mA Iout=100mA 270 400 mV Vout Vin Vout Line Regulation Iout=40mA 2V≤Vin≤8V 0.2 0.3 %/V Vout Load Regulation Vin=2.8V 1mA≤Iout≤100mA 20 40 mV Vin=2.8V 3.0 5.0 uA Iout=10mA 50 Iq Vout T Vout BL8503-2.8V Symbol Vin Vout Iout(Max.) Dropout Voltage Quiescent Current Output Voltage Temperature Coefficient Parameter Input Voltage Output Voltage Maximum Output Current Input-Output Voltage Differential Vout Vin Vout Line Regulation Vout Load Regulation Iq Vout T Vout BL8503-3.0V Symbol Vin Vout Iout(Max.) Dropout Voltage Vout Vin Vout Quiescent Current Output Voltage Temperature Coefficient Conditions Vin=4V,Vout>2.744V Typ 2.744 2.8 Max 8 2.856 250 Units V V mA Iout=100mA 170 300 Iout=200mA 320 500 0.2 0.3 %/V 20 40 mV Vin=3.8V 3.0 5.0 uA Iout=10mA 50 Iout=40mA 3V≤Vin≤8V Vin=3.8V 1mA≤Iout≤100mA Parameter Input Voltage Output Voltage Maximum Output Current Input-Output Voltage Differential Vin=4V,Vout>2.94V Line Regulation http://www.belling.com.cn Min ppm/C Conditions Min Typ 2.94 3.0 ppm/C Max 8 3.06 250 Units V V mA Iout=100mA 170 300 Iout=200mA 320 500 Iout=40mA 3.2V≤Vin≤8V 0.2 0.3 - 5Total 12 Pages mV mV %/V 10/24/2016 BL8503 Vout Iq Vout T Vout BL8503-5.0V Symbol Vin Vout Iout(Max.) Dropout Voltage Load Regulation Quiescent Current Output Voltage Temperature Coefficient Parameter Input Voltage Output Voltage Maximum Output Current Input-Output Voltage Differential Vout Vin Vout Line Regulation Vout Load Regulation Iq Vout T Vout Quiescent Current Output Voltage Temperature Coefficient Typical Application Circuit： Vin=4.0V 1mA≤Iout≤100mA 20 40 mV Vin=4V 3.0 5.0 uA Iout=10mA 50 Conditions Vin=6V,Vout>4.9V Min Typ 4.9 5.0 ppm/C Max 8 5.1 250 Units V V mA Iout=100mA 170 300 Iout=200mA 320 500 0.2 0.3 %/V 20 40 mV Vin=6V 3.0 5.0 uA Iout=10mA 50 Iout=40mA 5.2V≤Vin≤8V Vin=6.0V 1mA≤Iout≤100mA mV ppm/C Application hints： NOTE1 ： Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is recommended. NOTE2 ： Output capacitor (Cout=1uF) is recommended in all application to assure the stability of circuit. Tantalum capacitor is recommended. Explanation： BL8503 is a series of low dropout voltage and low power consumption three pins regulator. Its application circuit is very simple, which only needs two outside capacitors. It is composed of these modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor. Current Limit module can keep chip and power system away from danger when load current is more than 250mA. BL8503 uses trimming technique to assure the accuracy of output value within±2%, at the same time, temperature compensated is elaborately considered in this chip, which makes BL8503’s temperature coefficient within 50ppm/℃。 http://www.belling.com.cn - 6Total 12 Pages 10/24/2016 BL8503 Typical Performance Characteristics： 1.Load regulation Output Voltage VS Output Current(Vout=3.0V) 1.6 Output Voltage （V） Output Voltage （V） Output Voltage VS Output Current(Vout=1.5V) 1.5 1.4 1.3 1.2 1.1 1 0 50 100 150 200 250 3.05 3 2.95 2.9 2.85 2.8 300 0 50 100 150 200 250 300 Output Current （mA） Output Current（mA） 2.Line Regulation Line regulation (Vout=3.0V) 1.51 Output Voltage（V） Output Voltage （V） Line regulation（Vout=1.5V) 1.505 1.5 1.495 1.49 Iout=40mA Iout=6mA 1.485 1.48 1 2 3 4 5 6 7 3.07 3.05 3.03 3.01 2.99 2.97 Iout=40mA Iout=3mA 2.95 2.93 8 3 4 5 Input Voltage（V） 6 7 8 9 10 Input Voltage（V） 3.Dropout Voltage Dropout Voltage (Vout=3.0V) 1.6 Output Voltage（V） Output Voltage（V） Dropout Voltage (Vout=1.5V) 1.5 1.4 1.3 1.2 Iout=100mA Iout=200mA 1.1 1 1.5 1.8 2.1 2.4 2.7 3.05 3.04 3.03 3.02 3.01 3 2.99 2.98 2.97 2.96 3 3 3.2 3.4 3.6 3.8 4 Input Voltage（V） Input Voltage（V） http://www.belling.com.cn Iout=100mA Iout=200mA - 7Total 12 Pages 10/24/2016 BL8503 Input Voltage transient response （Vout=1.5V,Iout=1mA） 4．Input Voltage transient response （Vout=1.5V,Iout=10mA） Cin=Cout=1uF Cin=Cout=1uF Vin=3.5V Vin=3.5V Vin=2.5V Vin=2.5V Input Voltage transient response （Vout=3.0V,Iout=10mA） Input Voltage transient response （Vout=3.0V,Iout=1mA） Cin=Cout=1uF Cin=Cout=1uF Vin=5V Vin=5V Vin=4V Vin=4V 5．Load transient response（Vout=1.5V） Load transient response（Vout=3.0V） Iout=40mA Iout=40mA Iout=1mA http://www.belling.com.cn Iout=1mA - 8Total 12 Pages 10/24/2016 BL8503 Package Outline： Package SOT-89-3 Devices per reel 1000 Unit mm Package Dimension: Taping Specification:（M1：Standard Type，M2：Customized） http://www.belling.com.cn - 9Total 12 Pages 10/24/2016 BL8503 Taping Reel Dimension： SOT-23-3: Package SOT-23-3 Devices per reel 3000 Unit mm Package dimension： http://www.belling.com.cn - 10Total 12 Pages 10/24/2016 BL8503 Taping Specification： Taping reel dimension： http://www.belling.com.cn - 11Total 12 Pages 10/24/2016 BL8503 SOT-23-5: Package SOT-23-5 Devices per reel 3000 Unit mm Package specification： Taping dimension：（M1：Standard Type ，M2：Customized） http://www.belling.com.cn - 12Total 12 Pages 10/24/2016 BL8503 Taping reel dimension： http://www.belling.com.cn - 13Total 12 Pages 10/24/2016