ASPL1117-3.3-DT-R

ASPL1117 900mA Bipolar Linear Regulator Features    Maximum output current is 900mA Range of operation input voltage: Max 24V Line regulation: 0.03%/V (typ.)    Standby current: 2mA (typ.) Load regulation: 0.2%/A (typ.) Environment Temperature: -20℃~85℃ Application   Power Management for STB, Mother Board, Graphic Card  LCD Monitor and LCD TV  DVD Decode Board  General Description ADSL Modem,WLAN Post Regulators For Switching Supplies Typical Application ASPL1117 is a series of low dropout three-terminal regulators with a dropout of 1.3V at 0.9A load current. ASPL1117 features a very low standby current 2mA compared to 5mA of competitor. Other than a fixed version, Vout = 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5.0V, ASPL1117 has an adjustable version, which can provide an output voltage from 1.25 to 5.0V with only two external resistors. ASPL1117 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%. Other output voltage accuracy can be customized on demand, such as 1%.ASPL1117 is available in SOT-223 power package. Application circuit of ASPL1117 fixed version  Typical Electrical Characteristic Temperature（℃） NOV 2018 Version1.1 1/9 Ascend Semicondutor Co.,Ltd ASPL1117 900mA Bipolar Linear Regulator  Block Diagram  Pin Configuration  Absolute Maximum Rating Parameter Value Max Input Voltage 24V Max Power Dissipation(Pd) 1.0W Max Output Current 0.9A Recommended operating junction temperature(Tj) -20~125℃ Max Operating Junction Temperature(Tj) 150℃ Ambient Temperature(Ta) -20℃~85℃ Package Thermal Resistance SOT-223 20℃/W Storage Temperature(Ts) -40℃~150℃ Lead Temperature & Time 260℃, 10S Caution: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. NOV 2018 Version1.1 2/9 Ascend Semicondutor Co.,Ltd ASPL1117 900mA Bipolar Linear Regulator  Electrical Characteristics Symbol Parameter Conditions Min. Typ. Max. Unit Vref Reference voltage ASPL1117-ADJ 10mA≤Iout≤0.9A,Vin=3.25V 1.225 1.25 1.275 V A6PL1117-1.2 0≤Iout≤0.9A , Vin=3.2V 1.176 1.2 1.224 V ASPL1117-1.5 0≤Iout≤0.9A , Vin=3.5V 1.470 1.5 1.530 V ASPL1117-1.8 0≤Iout≤0.9A , Vin=3.8V 1.764 1.8 1.836 V 2.45 2.5 2.55 V 3.234 3.3 3.366 V 4.9 5.0 5.1 V ASPL1117-1.2 Iout=10mA, 2.7V≤Vin≤10V 0.03 0.2 %/V ASPL1117-ADJ Iout=10mA, 2.75V≤Vin≤12V 0.03 0.2 %/V ASPL1117-1.5 Iout=10mA, 3.0V≤Vin≤12V 0.03 0.2 %/V ASPL1117-1.8 Iout=10mA, 3.3V≤Vin≤12V 0.03 0.2 %/V ASPL1117-2.5 Iout=10mA, 4.0V≤Vin≤12V 0.03 0.2 %/V 0.03 .2 %/V 0.03 0.2 %/V 2 8 mV Output voltage Vout ASPL1117-2.5 0≤Iout≤0.9A , Vin=4.5V ASPL1117-3.3 0≤Iout≤0.9A , Vin=5.3V ASPL1117-5.0 0≤Iout≤0.9A , Vin=7.0V ΔVout Line Regulation ASPL1117-3.3L Iout=10mA, 4.8V≤Vin≤12V ASPL1117-5.0 Iout=10mA, 6.5V≤Vin≤12V ASPL1117-1.2 Vin =2.7V, 10mA≤Iout≤0.9A △Vout Load regulation ASPL1117-ADJ Vin =2.75V, 10mA≤Iout≤0.9A ASPL1117-1.5 Vin =3.0V, 10mA≤Iout≤0.9A ASPL1117-1.8 Vin =3.3V, 10mA≤Iout≤0.9A 2 8 mV 2.5 10 mV 3 12 mV ASPL1117-2.5 Vin =4.0V, 10mA≤Iout≤0.9A 4 16 mV 6 24 mV 9 36 mV ASPL1117-3.3 Vin =4.8V, 10mA≤Iout≤0.9A ASPL1117-5.0 Vin =6.5V, 10mA≤Iout≤0.9A NOV 2018 Version1.1 3/9 Ascend Semicondutor Co.,Ltd ASPL1117 900mA Bipolar Linear Regulator Vdrop Dropout voltage Ilimit Current limit Imin Minimum load current Iq IAdj PSRR Quiescent Current Adjust pin current Ripple Regulation Ichange Iadj change ΔV/ΔT Temperature coefficien θJC Thermal resistance Iout =100mA Iout=1A Vin-Vout=2V;Tj =25℃ 1.23 1.3 0.9 1.3 1.5 V V A ASPL1117-ADJ 2 10 mA ASPL1117-1.2,Vin=10V 2 5 mA ASPL1117-1.5,Vin=12V 2 5 mA ASPL1117-1.8,Vin=12V 2 5 mA ASPL1117-2.5,Vin=12V 2 5 mA ASPL1117-3.3,Vin=12V ASPL1117-5.0,Vin=12V ASPL1117-ADJ Vin=5V,10mA≤Iout≤1A 2 2 5 5 mA mA 55 120 uA 0.8 f=100Hz, Cout=104 -65 dB f=1KHz, Cout=104 -65 dB f=10KHz, Cout=104 -60 dB f=22KHz, Cout=104 -57 dB ASPL1117-ADJ Vin=5V,10mA≤Iout≤1A 0.2 SOT-223 10 uA ±100 ppm 20 ℃/W Note1: All test are conducted under ambient temperature 25°Cand within a short period of time 20ms Note2: Load current smaller than minimum load current of ASPL1117-ADJ will lead to unstable or oscillation output.  Detailed Description ASPL1117 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, current limit, 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. NOV 2018 Version1.1 4/9 Ascend Semicondutor Co.,Ltd ASPL1117 900mA Bipolar Linear Regulator  Typical Application ASPL1117 has an adjustable version and six fixed versions (1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5.0V) Fixed Output Voltage Version Application circuit of ASPL1117 fixed 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 ASPL1117-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). 1) To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm or lower. As ASPL1117-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)