SSP1117-1.8V

SSP1117 1A Bipolar Linear Regulator Features  Maximum output current is 1.0A  Standby current: 2mA (typ.)  Range of operation input voltage: Max 15V  Load regulation: 0.2%/A (typ.)  Line regulation: 0.03%/V (typ.)  Environment Temperature: -20℃~85℃   DVD Decode Board ADSL Modem  Post Regulators For Switching Supplies Applications   Power Management for Computer Mother Board, Graphic Card LCD Monitor and LCD TV General Description only two external resistors. regulators with a dropout of 1.3V at 1A load current. SSP1117 offers thermal shut down function, to assure the IN SSP1117 is a series of low dropout three-terminal SSP1117 features a very low standby current 2mA stability of chip and power system. And it uses trimming compared to 5mA of competitor. technique toguarantee output voltage accuracy within 2%. Other output voltage accuracy can be customized on demand, such as 1%. PR O Other than a fixed version, Vout=1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5V, SSP1117 has an adjustable version, which can provide an output voltage from 1.25 to 12V with SSP1117 is available in SOT-223, TO-252 power package. SI Typical Application Typical Electrical Characteristic Ver1.4 1 Shanghai Siproin Microelectronics Co. SSP1117 1A Bipolar Linear Regulator Selection Table Marking Output Voltage XX=12 1.2V XX=15 1.5V 1117 XX=18 1.8V XX YYWW XX=28 2.85V SOT-223 XX=25 2.5V TO-252 XX=33 3.3V XX=50 5.0V XX=ADJ Adj Ordering Information Marking 1117 XX YYWW Description Product code Output Voltage(1.2~12.0V) PR O 1117 XXYYWW Designator Package IN Part No. DATE CODE Note:”XX” stands for output voltages. Other voltages can be specially customized Parameters Temperature&Rohs Package type SI Packing type: Voltage accuracy Description C:-40~85℃ ,Pb Free Rohs Std. SOT-223 TO-252 TR:Tape&Reel (Standard) 2%(Customized) Block Diagram Ver1.4 2 Shanghai Siproin Microelectronics Co. SSP1117 1A Bipolar Linear Regulator PR O IN Pin Configuration Absolute Maximum Ratings Max Input Voltage ············································································· ··············· ······· 30V Max Operating Junction Temperature(Tj) ················································· ··············· ······· 150℃ Ambient Temperature(Ta) ··································································· ··············· ······· -40℃~ 85℃ Storage Temperature(Ts) ···································································· ··············· ······· -40℃~150℃ Lead Temperature & Time ··································································· ··············· ······· 260℃ 10S Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect SI device reliability. Recommended Work Conditions Recommended maximum input voltage ······································································ ······· 15V Recommended operating junction temperature(Tj)························································· ······· -20~125℃ Thermal Information Parameter Package thermal resistance Ver1.4 Package Rating Unit SOT-223 20 ℃/W TO-252 12.5 ℃/W 3 Shanghai Siproin Microelectronics Co. SSP1117 1A Bipolar Linear Regulator Electrical Characteristics TA=25℃,unless otherwise noted. Symbol Parameter Vref Reference Conditions SSP1117-Adj voltage Min Typ Max Unit 1.225 1.25 1.275 V 1.176 1.2 1.224 V 1.47 1.5 1.53 V 1.764 1.8 1.836 V 2.45 2.5 2.55 V 10mA≤Iout≤1A , Vin=3.25V SSP1117-1.2V 0≤Iout≤1A , Vin=3.2V SSP1117-1.5V 0≤Iout≤1A , Vin=3.5V SSP1117-1.8V Vout Output voltage 0≤Iout≤1A , Vin=3.8V 0≤Iout≤1A , Vin=4.5V SSP1117-2.85V 0≤Iout≤1A , Vin=4.85V 2.793 2.85 2.907 V 3.234 3.3 3.366 V 4.9 5 5.1 V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V 0.03 0.2 %/V PR O SSP1117-3.3V IN SSP1117-2.5V 0≤Iout≤1A , Vin=5.3V SSP1117-5.0V 0≤Iout≤1A , Vin=7.0V SSP1117-1.2V Iout=10mA, 2.7V≤Vin≤10V SSP1117-1.5V SI Iout=10mA, 3.0V≤Vin≤12V SSP1117-1.8V Iout=10mA, 3.3V≤Vin≤12V △Vout Line regulation SSP1117-2.5V Iout=10mA, 4.0V≤Vin≤12V SSP1117-2.85V Iout=10mA, 4.35V≤Vin≤12V SSP1117-3.3V Iout=10mA, 4.8V≤Vin≤12V SSP1117-5.0V Iout=10mA, 6.5V≤Vin≤12V SSP1117-ADJ Iout=10mA, 2.75V≤Vin≤12V Ver1.4 4 Shanghai Siproin Microelectronics Co. SSP1117 Symbol Typ Max Unit 2 8 mV 3 10 mV 3 12 mV 4 16 mV 5 20 mV 6 24 mV IN 1A Bipolar Linear Regulator Parameter Conditions Min 9 36 mV 2 8 mV 1.15 1.3 V 1.3 1.5 V SSP1117-ADJ 2 10 mA SSP1117-1.2V,Vin=10V 2 5 mA SSP1117-1.5V,Vin=11V 2 5 mA SSP1117-1.2V Vin =2.7V, 10mA≤Iout≤1A SSP1117-1.5V Vin =2.7V, 10mA≤Iout≤1A SSP1117-1.8V Vin =3.3V, 10mA≤Iout≤1A △Vout Load SSP1117-2.5V regulation Vin =4.0V, 10mA≤Iout≤1A SSP1117-2.85V Vin =4.35V, 10mA≤Iout≤1A SSP1117-3.3V Vin =4.8V, 10mA≤Iout≤1A SSP1117-5.0V Vin =6.5V, 10mA≤Iout≤1A PR O SSP1117-ADJ Vin =2.75V, 10mA≤Iout≤1A Vdrop Dropout voltage Imin Minimum load Iq IAdj Quiescent SSP1117-1.8V,Vin=12V 2 5 mA Current SSP1117-2.5V,Vin=12V 2 5 mA SSP1117-2.85V,Vin=12V 2 5 mA SSP1117-3.3V,Vin=12V 2 5 mA SSP1117-5.0V,Vin=12V 2 5 mA SSP1117-ADJ 55 120 uA 0.2 10 uA Adjust pin current Ichange Iout=1A SI current Iout =100mA Iadj change Vin=5V,10mA≤Iout≤1A SSP1117-ADJ Vin=5V,10mA≤Iout≤1A ΔV/ΔT ±100 Temperature ppm coefficien θJC Thermal SOT-223 20 resistance TO-252 10 ℃/W Note1: All test are conducted under ambient temperature 25°C and within a short period of time 20ms Note2: Load current smaller than minimum load current of SSP1117-ADJ will lead to unstable or oscillation output. Ver1.4 5 Shanghai Siproin Microelectronics Co. SSP1117 1A Bipolar Linear Regulator Detailed Description SSP1117 is a series of low dropout voltage, three terminal regulators. Its application circuit is very simple: the fixed version only needs two capacitors and the adjustable version only needs two resistors and two capacitors to work. It is composed of some modules including start-up circuit, bias circuit, bandgap, thermal shutdown, power transistors and its driver circuit and so on. The thermal shut down modules can assure chip and its application system working safety when the junction temperature is larger than 140°C. The bandgap module provides stable reference voltage, whose temperature coefficient is compensated by careful design considerations. The temperature coefficient is under 100 ppm/°C. And the accuracy of output voltage is guaranteed by trimming technique. IN Typical Application SSP1117 has an adjustable version and six fixed versions (1.2V, 1.5V ,1.8V, 2.5V, 2.85V , 3.3V and 5V) SI PR O Fixed Output Voltage Version 1) Recommend using 10uF tan capacitor as bypass capacitor (C1) for all application circuit. 2) Recommend using 10uF tan capacitor to assure circuit stability. Adjustable Output Voltage Version Application Circuit of SSP1117-ADJ The output voltage of adjustable version follows the equation: Vout=1.25×(1+R2/R1)+IAdj×R2. We can ignore IAdj because IAdj (about 50uA) is much less than the current of R1 (about 2~10mA). Ver1.4 6 Shanghai Siproin Microelectronics Co. SSP1117 1A Bipolar Linear Regulator 1) To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm or lower. As SSP1117-ADJ can keep itself stable at load current about 2mA, R1 is not allowed to be higher than 625ohm. 2) Using a bypass capacitor (CADJ) between the ADJ pin and ground can improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. The impedance of CADJ should be less than R1 to prevent ripple from being amplified. As R1 is normally in the range of 100Ω~500Ω, the value of CADJ should satisfy this equation: 1/(2π×fripple×CADJ)