SJ1117xxx Adjustable and Fixed Voltage Regulator ◈ Descriptions The SJ1117 series of positive adjustable and fixed regulators are designed to provide 1A with high efficiency. All internal circuitry is designed to operate down to 1.1V input to output differential. The SJ1117 offers current limiting and thermal shutdown and over voltage protection. ◈ Features • Adjustable or fixed output(1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5V) • Output current of 1A • Safe Operating Area(SOA) Protection • Over Voltage Protection (OVP) • Over Current Protection (OCP) • Thermal shutdown protection • Low dropout, 1.1V Typical at 1A output current • Operating temperature range : -40℃ ~ +125℃ • Halogen-Free Package is Available • High Level ESD Protection : 400V(MM), 4KV(HBM) ◈ Typical Applications VIN VOUT IN + CIN 10uF SJ1117-XX VIN VOUT IN OUT GND + CO 10uF + CIN 10uF SJ1117A OUT R1 ADJ + CO 10uF 125Ω R2 225Ω Fig.1 Fixed Voltage Regulator Fig.2 Adjustable Voltage Regulator ※ Notes 1) CIN needed if device is far from filter capacitors 2) CO minimum value required for stability KSD-I0T005-008 Vout = V ADJ × (1 + R2 ) + I ADJ × R2 R1 1 SJ1117xxx ◈ PIN Connection (Top View) ADJ/GND INPUT OUTPUT OUTPUT 1 OUTPUT 1 OUTPUT 2 2 OUTPUT 3 4 INPUT 4 3 INPUT OUTPUT ADJ/GND ADJ/GND PKG : TO-252 PKG : SOT-223 PKG : SOT-89 3 INPUT 2 OUTPUT ADJ/GND 1 PKG : TO-220F-3L ◈ BLOCK DIAGRAM KSD-I0T005-008 2 SJ1117xxx ◈Ordering Information Package Type SOT-89 SOT-223 TO-252 TO-220F-3L VOUT ADJ 1.2V 1.5V 1.8V 2.5V 2.85V 3.3V 5.0V ADJ 1.2V 1.5V 1.8V 2.5V 2.85V 3.3V 5.0V ADJ 1.2V 1.5V 1.8V 2.5V 2.85V 3.3V 5.0V ADJ 1.2V 1.5V 1.8V 2.5V 2.85V 3.3V 5.0V Device Name SJ1117-AF SJ1117-12F SJ1117-15F SJ1117-18F SJ1117-25F SJ1117-285F SJ1117-33F SJ1117-50F SJ1117-AQ SJ1117-12Q SJ1117-15Q SJ1117-18Q SJ1117-25Q SJ1117-285Q SJ1117-33Q SJ1117-50Q SJ1117-AD SJ1117-12D SJ1117-15D SJ1117-18D SJ1117-25D SJ1117-285D SJ1117-33D SJ1117-50D SJ1117-API SJ1117-12PI SJ1117-15PI SJ1117-18PI SJ1117-25PI SJ1117-285PI SJ1117-33PI SJ1117-50PI KSD-I0T005-008 Marking S17A S1712 S1715 S1718 S1725 S17285 S1733 S1750 SJ1117A SJ111712 SJ111715 SJ111718 SJ111725 SJ1117285 SJ111733 SJ111750 SJ1117AD SJ111712D SJ111715D SJ111718D SJ111725D SJ1117285D SJ111733D SJ111750D SJ1117API SJ111712PI SJ111715PI SJ111718PI SJ111725PI SJ1117285PI SJ111733PI SJ111750PI 3 SJ1117xxx ◈ Absolute Maximum Ratings Characteristic [Ta=25°C] Symbol Rating Unit VI 16 V PD1(Note1) 0.4 PD2(Note2) 0.5 PD1(Note1) 1.0 PD2(Note2) 1.4 PD1(Note1) 1.4 PD2(Note2) 2.7 PD1(Note1) 2.0 PD2(Note3) 24 Junction Temperature TJ 150 ℃ Operating temperature range Topr -40 ~ +125 ℃ Storage temperature range Tstg -55 ~ +150 ℃ Input voltage SOT-89 SOT-223 Power Dissipation TO-252 TO-220F-3L W Note 1 : TA=25℃(No Heat sink) Note 2 : Mounted on a glass epoxy PCB board (25.4 × 25.4mm). Note 3 : TC=25℃(Used Heat sink) ◈ Recommended Operating Conditions Characteristic Symbol Min. Max. Unit Input voltage VI VO+1.5V VO+7V V Output current IO 10 1000 mA ◈ Safe Operating Area KSD-I0T005-008 4 SJ1117xxx ◈ Electrical Characteristics (Electrical Characteristics at TA=25℃ and VI=(VO+1.5V), Io=10mA, CO=10μF, unless otherwise specified.) Characteristic Symbol Device Dropout voltage Ripple rejection ratio Current limit Typ Max (+2%) Unit 1.225 1.25 1.275 SJ1117-12 1.176 1.20 1.224 SJ1117-15 1.470 1.50 1.530 1.764 1.80 1.836 2.450 2.50 2.550 SJ1117-285 2.793 2.85 2.907 SJ1117-33 3.234 3.30 3.366 SJ1117-50 4.900 5.00 5.100 - 0.05 0.4 % - 0.1 0.5 % - 5 10 mA - 1 5 mA - 36 90 μA - 1 5 μA - 1.1 1.25 V VOUT SJ1117-25 Line regulation (Note4) Load regulation (Note4) Quiescent current Minimum load current Adjust pin current Adjust pin current change Min (-2%) SJ1117A SJ1117-18 Output voltage Test Condition VI = (VO+1.5V) to 7V IO = 10mA to 1000mA 1.5V≤ VI-VO≤7V IO=10mA 1.5V≤ VI-VO≤7V IO=10mA ~ 1000mA IO=0 V │△VO(△VI)│ All │△VO(△IL) │ All IQ All I L(MIN) SJ1117A IADJ SJ1117A │∆IADJ│ SJ1117A VDROP All IO =1000mA RR All VI = VO+3V, IO=500mA VRipple=1VP-P , f=120 ㎐ 60 72 ILIMIT All VI = VO+2V 1.1 1.8 - A - 160 - ℃ - 10 - ℃ Thermal Shutdown TTSD All Thermal shutdown hysteresis THYS All Vin=2.75V VI = 2.75V IO = 100mA 2.75V ≤ VI ≤ 8.25V IO=10mA ~ 1000mA VI = VO+1.5V IO = 0 to 10mA VI = VO+1.5V IO = 0 to 10mA - dB Note 4: Low duty pulse testing with Kelvin connections required. KSD-I0T005-008 5 SJ1117xxx ◈ Electrical Characteristic Curves Fig.4 IOUT vs VIN-VOUT Output Short Circuit Current IOUT [A] Output Voltage Change VOUT [%] Fig.3 VOUT vs TA 1 0.8 V I N =V O U T +1.5V 0.6 I O U T =10mA 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 -100 -50 0 50 100 150 3.0 T a =25℃ 2.5 2.0 1.5 1.0 0.5 0.0 0 200 Ambient Temperature Ta [℃] 2 4 12 14 50 V I N =V O U T +2V Adjust Pin Current IAdj [μA] Output Short Circuit Current IOUT [A] 10 Fig.6 IAdj vs TA 3.0 2.5 2.0 1.5 1.0 0.5 45 V I N =2.75V I O U T =0.1A 40 35 30 25 20 15 10 5 0 0.0 -100 -50 0 50 100 150 -100 200 Ambient Temperature Ta [℃] -50 Equivalent Series Resistor ESR [Ω] I N =V O U T +1.5V 8 7 6 5 4 3 2 1 0 -100 -50 0 50 100 50 100 150 200 Fig.8 ESR vs IOUT 10 V 0 Ambient Temperature Ta [℃] Fig.7 IQ vs TA Quiescent Current IQ [mA] 8 Input-Output Differential Voltage VIN-VOUT [V] Fig.5 IOUT vs TA 9 6 150 200 Ambient Temperature Ta [˚C] 100 Instable Region Ta=25℃ 10 Stable Region 1 0.1 Instable Region 0.01 0 200 400 600 800 1000 Output Current IOUT [mA] KSD-I0T005-008 6 SJ1117xxx 20 0 -20 Cin=1.0uF, Cout=33uF Iout=0.1A, TA=25℃ 0.4 0.8 1.2 Voltage [V] 4.25 Deviation [mV] Line Transient Response Input Line Transient Response Output Voltage 6.5 20 0 -20 Cin=1.0uF, Cout=33uF Iout=0.1A, TA=25℃ 0 0.4 0.8 1.2 1.6 Time [mS] Fig.11 SJ1117-285 Fig.12 SJ1117-50 Load Transient Response Load Transient Response 0 -0.1 0.5 0 Cin=10uF, Cout=10uF, Vin=5V Preload=0.1A, TA=25℃ 40 80 120 160 Deviation [V] Time [mS] 0.1 0 7.5 2.0 1.6 Load Current [A] Voltage [V] Deviation [mV] Deviation [V] Load Current [A] Fig.10 SJ1117-50 5.25 0 Output Voltage Fig.9 SJ1117-285 Output Voltage Input Output Voltage ◈ Electrical Characteristic Curves 200 Time [µS] 2.0 0.1 0 -0.1 0.5 0 Cin=10uF, Cout=10uF, Vin=7V Preload=0.1A, TA=25℃ 0 40 80 120 160 200 Time [µS] KSD-I0T005-008 7 SJ1117xxx ◈ Application Note Input Bypass Capacitor (CIN) An Input capacitor is recommended. A 10μF tantalum capacitor on the input is a suitable bypassing for all applications. Adjust Terminal Bypass Capacitor(CADJ) The adjust terminal can be bypassed to ground with a bypass capacitor to improve ripple rejection This bypass capacitor prevents ripple from being amplified as the output voltage is increased. At any ripple frequency, the impedance of the CADJ should less than R1 to prevent the ripple from being amplified 1 ( 2π × f RIPPLE × C ADJ ) 〈 R1 The R1 is the resistor between the output and the adjust pin. Output Capacitor(COUT) The output capacitor(COUT) is critical in maintaining regulator stability, and must meet required conditions for both minimum amount of capacitance and ESR. The minimum COUT required is 10μF(tantalum capacitor). Any increase of the COUT will merely improve the stability and transient response. The ESR of the COUT should range between 0.3Ω - 22Ω. In the case of the adjustable regulator, when the CADJ is used, a larger COUT (22μF) is required. Output Voltage The SJ1117 develops a 1.25V reference voltage between the output and the adjust terminal (See Fig.9). By placing a resistor between these two terminals, a constant current is caused to flow through R1 and down through R2 to set the overall output voltage. Normally this current is chosen to be the specified minimum load current. Because IADJ is very small and constant when compared to the current through R1, it represents a small error and can usually be ignored. For fixed voltage devices R1 and R2 are included in the device. VIN VOUT SJ1117 IN OUT + CIN + CO ADJ VREF IADJ VOUT = VREF (1 + R2 R1 R1 R2 ) + I ADJ × R 2 Fig.13 Basic Adjustable Regulator KSD-I0T005-008 8 SJ1117xxx ◈ Application Note Load Regulation Load regulation will be limited by the resistance of the wire connecting the regulator to the load. The specification for load regulation is measured at the output pin of the device. Negative side sensing is a true Kelvin connection, with the bottom of the output divider returned to the negative side of the load. Although it may not be immediately obvious, best load regulation is obtained when the top of the resistor divider (R1) is returned directly to the output pin of the device(See Fig.10). Fig.14 Connections for Best Load Regulation For example, a 5V regulator with 0.05Ω resistance(Rp) between the regulator and load will have a load regulation due to line resistance of (Rp x IL). If R1 is connected near the load, the effective line resistance will be Rp (1+R2/R1) or in this case, it is 4 times worse. In addition, the ground side of the resistor R2 can be returned near the ground of the load to provide remote ground sensing and improve load regulation. Protection Diodes Diodes between input and output are not usually needed. The internal diode between the output and input pins of the device can withstand microsecond surge currents of 10A to 20A. Normal power supply cycling can not generate currents of this magnitude. Only with extremely large output capacitors, such as 1N4002 1000μF and larger, and with the input pin (OPTIONAL) instantaneously shorted to ground can damage occur. A crowbar circuit at the input of the SJ1117 in combination with a large output capacitor could generate currents large enough to cause damage. In this case a diode from output to input is recommended, as shown in Figure 11. VOUT VIN IN SJ1117 OUT R1 ADJ + COUT 100uF + CADJ R2 10uF Fig.15 Protection Diodes KSD-I0T005-008 9 SJ1117xxx ◈ Application Note Thermal Considerations SJ1117 series regulator have internal thermal limiting circuitry designed to protect the device during overload conditions. For continuous normal load conditions however, the maximum junction temperature rating of 125℃ must not be exceeded. The thermal resistance for each application will be affected by thermal interactions with other components on the board. Some experimentation will be necessary to determine the actual value. Calculation Power Dissipation : PD = (VIN – VOUT) x (IOUT) Maximum junction temperature : TJ=TA(MAX)+PD KSD-I0T005-008 10 SJ1117xxx ◈ Typical Application Constant Current Output R VIN IN SJ1117A VOUT IN + + 10μF ADJ + VOUT VIN OUT 10μF SJ1117A OUT + R1 ADJ 10μF 10uF 1N4001 50kΩ R2 SBT2907 I OUT Vref = + Iadj R + 10uF Fig.16 Constant Current Regulator Fig.17 Slow Turn-On Regulator VOUT VIN IN SJ1117A IN R1 121Ω ADJ + 10uF + VOUT VIN OUT + + 10uF SJ1117A OUT ADJ 10uF Output Control (TTL) *CADJ R2 1kΩ 1kΩ SBT2222 R1 200Ω + 10uF R2 600Ω 1kΩ VOUT = 1.25 (1 + R2 R1 ) *: CADJ is optional, but it will improve ripple rejection. VOUT(OFF) = Vref Fig.18 1.25V to 10V Adjustable Regulator with Fig.19 5V Logic Regulator with Electronic Shutdown improved Ripple Rejection KSD-I0T005-008 11 SJ1117xxx ◈ Typical Application VOUT = 5V to 10V VIN > 12V IN + SJ1117-50 VOUT = 7.5V VIN > 9V OUT IN + 10uF + GND SJ1117-50 OUT + 10uF GND 10uF 10uF 2.5VOUT + 10uF 1kΩ Fig.20 Adjusting Output of Fixed Regulators Fig.21 Regulators with Reference VIN VOUT IN SJ1117-50 OUT + GND + 10μF 100uF 50Ω 5.3V AC LINE 5.0V Battery *RCHG IN 6.5V SJ1117-50 OUT GND + 10μF *: RCHG : Select for charge rate. Fig.22 Battery Backed-up Power Supply KSD-I0T005-008 12 SJ1117xxx ◈ SOT-89 Outline Dimension (unit : mm) ※ Recommend PCB solder land KSD-I0T005-008 [Unit: mm] 13 SJ1117xxx ◈ SOT-223 Outline Dimension (unit : mm) ※ Recommend PCB solder land KSD-I0T005-008 [Unit: mm] 14 SJ1117xxx Θ ◈ TO-252 Outline Dimension (unit : mm) Θ Θ Θ ※ Recommend PCB solder land [Unit: mm] 2.50 7.00 7.00 1.50 4.60 KSD-I0T005-008 15 SJ1117xxx ◈ TO-220F-3L Outline Dimension (unit : mm) KSD-I0T005-008 16 SJ1117xxx The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I0T005-008 17 코드 SJ1117-xxx 표준제목 개정번호 (REVISION) 개정일자 페이지 (PAGE) 18/18 기안자 승인자 박희재 최재훈 000 2009.02.12 001 개정. (업체 요청에 따른 ESR 특성 그래프 삽입.) 박희재 최재훈 2009.03.25 002 개정. (DPAK PKG name 표기 방식 변경, PCNB 불필요 : 현재 출하실적無.) 박희재 최재훈 2009.05.15 2009.06.29 2009.11.05 003 004 박희재 005 개정. (Vout=1.2V 제품 D2-PAK 추가 Line-up.) 개정. (D2PAK 사양서 별도제작으로 기존 D2PAK ordering information 삭제 .) 개정. (개정(PKG TO-220F-3L 추가) 박희재 이주연 최재훈 최재훈 최재훈 2010.05.27 006 개정. (TO-220F-3SL 단종으로 인한 Package 삭제.) 손영선 최재훈 2010.07.14 007 개정. ( 계열사 3사 통합에 따른 CI 변경 ) 구성훈 최재훈 2010.12.02 008 개정. ( TO252-3L Package Dimension SP사로 전환 ) 구성훈 최재훈 개정 (REVISION HISTORY) (NOTIFICATION) 통 지 문 008 내용 신규제정. (SJ1117 개발 완료에 따른 사양서 신규 제정.) 2008.11.26 개 정 이 력 KSD-I0T007 (CODE) 이 표준은 표준화 규정 (KRB-3002) 및 동부속규정에서 정하는 승인 절차에 따라 등록 되었음을 확인 하고 그 사본은 배포함. I HEREBY CERTIFY THAT THE ATTACHED COPY IS CORRECT, WHICH HAS BEEN REPRODUCED FROM THE ORIGINAL COPY CONTROLLED AND APPROVED IN ACCORDANCE WITH THE COMPANY REGULATION (KRB-3002) AND IT'S APPENDIX SPECIFICATION CENTER 관련문서 (REFERENCE) 실시일자 (EFFECTIVE) 등록 후 배포 파기일자 영구