BL8503_16 BELLING | Alldatasheet
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http://www.belling.com.cn - 1- 10/24/2016 Total 12 Pages 250mA CMOS Low Dropout Voltage Low consumption Regulator BL8503 Outline： 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. BL8503 can provide output value in the range of 1.2V~6.0V in 0.1V steps. It also can customized on command. BL8503 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. 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%. BL8503 is available in SOT-89-3、SOT- 23-3,TO-92 packages which is lead free，it also can available in these packages with lead. Features： Low Power Consumption：3.0uA（Typ.） 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） Highly Accurate：±2%(±1% customized） Output Current Limit Applications： Battery Powered equipment Power Management of MP3、PDA、DSC、 Mouse、PS2 Games Reference Voltage Source Regulation after Switching Power BL8503 Typical Application Circuit BL8503 Typical Performance Characteristic： Output Voltage VS. Output Current(Vout=1.5V ) 1.1 1.2 1.3 1.4 1.5 1.6 0 100 200 300 Output Current（mA） Output Voltage （V） Application hints： NOTE1：Input capacitor (Cin=1uF) is recommended in all application circuit. Tantal um 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 - 2- 10/24/2016 Total 12 Pages BL8503 Selection Guide： BL8503-XX X X X Pin Description： Pin number PIN Name Function SOT-23-3 SOT-89-3 （SM） SOT-89-3 (SA) SOT-89-3 (SB) TO-92 1 1 1 2 1 Vss Ground 3 2 3 3 2 Vin Supply voltage input 2 3 2 1 3 Vout Output Voltage Pin Assignment： Product Classification Pin Configuration BL8503-□□□PRM BL8503-□□□PSM BL8503-□□□PSA BL8503-□□□PSB BL8503-□□□PT Packages： RM：SOT-23-3 SM：SOT-89-3 (Default) SA：SOT-89-3 SB：SOT-89-3 T：TO-92 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 Output accucy： Default，±2％ 1： ±1％ （customized）
http://www.belling.com.cn - 3- 10/24/2016 Total 12 Pages BL8503 Product Classification： Product Name Output Voltage Package Type Package Marking BL8503-12PRM 1.2V SOT-23-3 BL8503-15PRM 1.5V SOT-23-3 BL8503-21PRM 2.1V SOT-23-3 BL8503-25PRM 2.5V SOT-23-3 BL8503-30PRM 3.0V SOT-23-3 BL8503-50PRM 5.0V SOT-23-3 BL8503-12PSM 1.2V SOT-89-3 BL8503-15PSM 1.5V SOT-89-3 BL8503-21PSM 2.1V SOT-89-3 BL8503-25PSM 2.5V SOT-89-3 BL8503-30PSM 3.0V SOT-89-3 BL8503-50PSM 5.0V SOT-89-3 BL8503-12PSA 1.2V SOT-89-3 BL8503-15PSA 1.5V SOT-89-3 BL8503-21PSA 2.1V SOT-89-3 BL8503-25PSA 2.5V SOT-89-3 BL8503-30PSA 3.0V SOT-89-3 BL8503-50PSA 5.0V SOT-89-3 BL8503-12PSB 1.2V SOT-89-3 BL8503-15PSB 1.5V SOT-89-3 BL8503-21PSB 2.1V SOT-89-3 BL8503-25PSB 2.5V SOT-89-3 BL8503-30PSB 3.0V SOT-89-3 BL8503-50PSB 5.0V SOT-89-3 BL8503-12PT 1.2V TO-92 BL8503-15PT 1.5V TO-92 BL8503-21PT 2.1V TO-92 BL8503-25PT 2.5V TO-92 BL8503-30PT 3.0V TO-92 BL8503-50PT 5.0V TO-92
http://www.belling.com.cn - 4- 10/24/2016 Total 12 Pages BL8503 Block Diagram： Absolute Maximum Ratings： Power Dissipation Recommended Work Conditions： Item Min Recommended Max unit Input Voltage Range 8 V Ambient Temperature -40 +125 C Electrical Characteristics： （Test Conditions：Cin=1uF,Cout=1uF,TA=25C, unless otherwise specified. ） BL8503-1.5V Symbol Parameter Conditions Min Typ Max Units Vin Input Voltage 8 V Vout Output Voltage 1.47 1.5 1.53 V Iout(Max.) Maximum Output Current Vin=2.5V,Vout>1.47 250 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA 270 400 mV VoutVin 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 - 5- 10/24/2016 Total 12 Pages BL8503 VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 50 ppm/C BL8503-1.8V Symbol Parameter Conditions Min Typ Max Units Vin Input Voltage 8 V Vout Output Voltage 1.764 1.8 1.836 V Iout(Max.) Maximum Output Current Vin=2.8V,Vout>1.764 250 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA 270 400 mV VoutVin 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 Iq Quiescent Current Vin=2.8V 3.0 5.0 uA VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 50 ppm/C BL8503-2.8V Symbol Parameter Conditions Min Typ Max Units Vin Input Voltage 8 V Vout Output Voltage 2.744 2.8 2.856 V Iout(Max.) Maximum Output Current Vin=4V,Vout>2.744V 250 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA 170 300 mV Iout=200mA 320 500 VoutVin Vout Line Regulation Iout=40mA 3V≤Vin≤8V 0.2 0.3 %/V Vout Load Regulation Vin=3.8V 1mA≤Iout≤100mA 20 40 mV Iq Quiescent Current Vin=3.8V 3.0 5.0 uA VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 50 ppm/C BL8503-3.0V Symbol Parameter Conditions Min Typ Max Units Vin Input Voltage 8 V Vout Output Voltage 2.94 3.0 3.06 V Iout(Max.) Maximum Output Current Vin=4V,Vout>2.94V 250 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA 170 300 mV Iout=200mA 320 500 VoutVin Vout Line Regulation Iout=40mA 3.2V≤Vin≤8V 0.2 0.3 %/V
http://www.belling.com.cn - 6- 10/24/2016 Total 12 Pages BL8503 Vout Load Regulation Vin=4.0V 1mA≤Iout≤100mA 20 40 mV Iq Quiescent Current Vin=4V 3.0 5.0 uA VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 50 ppm/C BL8503-5.0V Symbol Parameter Conditions Min Typ Max Units Vin Input Voltage 8 V Vout Output Voltage 4.9 5.0 5.1 V Iout(Max.) Maximum Output Current Vin=6V,Vout>4.9V 250 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA 170 300 mV Iout=200mA 320 500 VoutVin Vout Line Regulation Iout=40mA 5.2V≤Vin≤8V 0.2 0.3 %/V Vout Load Regulation Vin=6.0V 1mA≤Iout≤100mA 20 40 mV Iq Quiescent Current Vin=6V 3.0 5.0 uA VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 50 ppm/C Typical Application Circuit： 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/℃。 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.
http://www.belling.com.cn - 7- 10/24/2016 Total 12 Pages BL8503 Typical Performance Characteristics： Output Voltage VS Output Current(Vout=1.5V) 1.1 1.2 1.3 1.4 1.5 1.6 0 50 100 150 200 250 300 Output Current（mA） Output Voltage （V） Output Voltage VS Output Current(Vout=3.0V) 2.8 2.85 2.9 2.95 3.05 0 50 100 150 200 250 300 Output Current （mA） Output Voltage （V） 1.Load regulation 2.Line Regulation Line regulation （Vout=1.5V) 1.48 1.485 1.49 1.495 1.5 1.505 1.51 1 2 3 4 5 6 7 8 Input Voltage（V） Output Voltage （V） Iout=40mA Iout=6mA Line regulation (Vout=3.0V) 2.93 2.95 2.97 2.99 3.01 3.03 3.05 3.07 3 4 5 6 7 8 9 10 Input Voltage（V） Output Voltage（V） Iout=40mA Iout=3mA Dropout Voltage (Vout=3.0V) 2.96 2.97 2.98 2.99 3.01 3.02 3.03 3.04 3.05 3 3.2 3.4 3.6 3.8 4 Input Voltage（V） Output Voltage（V） Iout=100mA Iout=200mA 3.Dropout Voltage Dropout Voltage (Vout=1.5V) 1.1 1.2 1.3 1.4 1.5 1.6 Input Voltage（V） Output Voltage（V） Iout=100mA Iout=200mA
http://www.belling.com.cn - 8- 10/24/2016 Total 12 Pages BL8503 4．Input Voltage transient response （Vout=1.5V,Iout=10mA） Input Voltage transient response （Vout=1.5V,Iout=1mA） Cin=Cout=1uF Vin=3.5V Vin=2.5V Cin=Cout=1uF Vin=3.5V Vin=2.5V Input Voltage transient response （Vout=3.0V,Iout=10mA） Input Voltage transient response （Vout=3.0V,Iout=1mA） Cin=Cout=1uF Vin=5V Vin=4V Cin=Cout=1uF Vin=5V Vin=4V 5．Load transient response（Vout=1.5V） Load transient response（Vout=3.0V） Iout=40mA Iout=1mA Iout=40mA Iout=1mA
http://www.belling.com.cn - 9- 10/24/2016 Total 12 Pages 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 - 10- 10/24/2016 Total 12 Pages BL8503 Taping Reel Dimension： SOT-23-3: Package SOT-23-3 Devices per reel
3000 Unit mm
Package dimension：
http://www.belling.com.cn - 11- 10/24/2016 Total 12 Pages BL8503 Taping Specification： Taping reel dimension：
http://www.belling.com.cn - 12- 10/24/2016 Total 12 Pages BL8503 SOT-23-5: Package SOT-23-5 Devices per reel Package specification： Taping dimension：（M1：Standard Type ，M2：Customized）
http://www.belling.com.cn - 13- 10/24/2016 Total 12 Pages BL8503 Taping reel dimension：