1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q FEATURES Qualified to AEC-Q100 Standard Output Current Up to 1A Low Dropout Voltage (1.2V at 1A Output current) Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V Line Regulation typically at 0.1% max. Load Regulation typically at 0.2% max. Internal Current and Terminal Protection Maximum Input Voltage 15V Surface Mount Package SOT-223 100% Thermal Limit Burn-In Moisture Sensitivity Level 3 SOT-223 PKG ORDERING INFORMATION Device LM1117QS-ADJ LM1117QS-X.X APPLICATION Automotive Package SOT-223 3L X.X = Output Voltage = 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V DESCRIPSION The LM1117Q is a low power positive-voltage regulator designed to meet 1A output current and comply with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in batterypowered applications, as active terminators for the SCSI bus, and portable computers. The LM1117Q features very low quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases. LM1117Q is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V, 2.85, 3.3V, and 5.0V output voltages. The LM1117Q is offered in a 3-pin surface mount package SOT-223. The output capacitor of 10㎌ or larger is needed for output stability of LM1117Q as required by most of the other regulator circuits. Absolute Maximum Ratings (TA = 25℃, unless otherwise specified) CHARACTERISTIC SYMBOL MIN. MAX. UNIT VIN - 15 V Lead Temperature (Soldering, 5 seconds) TSOL - 260 ℃ Operating Junction Temperature Range TOPR -40 125 ℃ Storage Temperature Range TSTG -65 150 ℃ DC Input Voltage Jul. 2011 Rev. 1.0 -1- HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q Ordering Information VOUT Package Order No. Package Marking Supplied As Status ADJ SOT-223 LM1117QS-ADJ 1117Q ADJ Reel Active 1.2V SOT-223 LM1117QS-1.2 1117Q 1.2 Reel Active 1.5V SOT-223 LM1117QS-1.5 1117Q 1.5 Reel Active 1.8V SOT-223 LM1117QS-1.8 1117Q 1.8 Reel Active 2.5V SOT-223 LM1117QS-2.5 1117Q 2.5 Reel Active 2.85V SOT-223 LM1117QS-2.85 1117Q 2.85 Reel Active 3.3V SOT-223 LM1117QS-3.3 1117Q 3.3 Reel Active 5.0V SOT-223 LM1117QS-5.0 1117Q 5.0 Reel Active LM 1117 Output Voltage : ADJ / 1.2 / 1.5V / 1.8V / 2.5V / 2.85V / 3.3V / 5.0V Package Type : S : SOT-223 Q : Q100 Certified Root Name Product Code Jul. 2011 Rev. 1.0 -2- HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q PIN CONFIGURATION SOT-223 PIN DESCRIPTION SOT-223 Pin No. Name Function 1 ADJ/GND Adjustable / Ground 2 VOUT Output Voltage 3 VIN Input Voltage Jul. 2011 Rev. 1.0 -3- HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q ELECTRICAL CHARACTERISTICS (TA=25℃, CO = 10uF unless otherwise specified) For ADJ Output Voltage Symbol Parameters Condition Min. Typ. Max. Unit 1.250 1.262 V 1.281 V VREF Reference Voltage VIN=5V, IO=10mA 1.238 VREF Reference Voltage IO = 10mA to 1A, VIN - VREF = 1.5V to 13.75V (TJ = 0 ~ 125℃) 1.219 ΔVLINE Line Regulation IO = 10mA , VIN - VREF = 1.5V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 10mA to 1A, VIN - VREF = 2 V 0.2 0.4 % 15 V VIN Operating Input Voltage IADJ Adjustment pin Current VIN - VREF = 1.5V to 12V, IO = 100mA 50 120 uA ΔIADJ Adjustment Pin Current Change VIN - VREF = 1.5V to 12V, IO = 100mA to 1A 0.5 5 uA IO(MIN) Minimum Load Current VIN=5V, VREF=0V 5 10 mA IO Current Limit VIN - VREF = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VREF = 3V, VRIPPLE = 1VPP SVR 1000 mA 0.003 % 75 dB (TA=25℃, CO = 10uF unless otherwise specified) For 1.2V Output Voltage Symbol 60 1250 Parameters Condition Min. Typ. Max. Unit 1.200 1.224 V 1.248 V VO Output Voltage VIN = 2.7V, IO = 10mA 1.176 VO Output Voltage VIN = 2.7V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 1.152 ΔVLINE Line Regulation IO = 0mA , VIN = 2.7V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 10mA to 1A, VIN = 3.2V 0.2 0.4 % 15 V 10 ㎃ VIN Operating Input Voltage ID Quiescent Current VIN - VO = 5V IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 1.5V, VRIPPLE = 1VPP SVR Jul. 2011 Rev. 1.0 5 1000 -4- 60 1250 ㎃ 0.003 % 75 dB HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) (TA=25℃, CO = 10uF unless otherwise specified) For 1.5V Output Voltage Symbol LM1117Q Parameters Condition Min. Typ. Max. Unit 1.5 1.515 V 1.530 V VO Output Voltage VIN = 3.0V , IO = 10mA 1.485 VO Output Voltage VIN = 3.0V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 1.470 ΔVLINE Line Regulation IO = 0mA , VIN = 3.0V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 3.5 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 12 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR 5 1000 mA 100 uV 75 dB (TA=25℃, CO = 10uF unless otherwise specified) For 1.8V Output Voltage Symbol 60 1250 Parameters Condition Min. Typ. Max. Unit 1.8 1.818 V 1.836 V VO Output Voltage VIN = 3.3V, IO = 10mA 1.782 VO Output Voltage VIN = 3.3V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 1.764 ΔVLINE Line Regulation IO = 0mA , VIN = 3.3V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 3.8 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 12 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR Jul. 2011 Rev. 1.0 5 1000 -5- 60 1250 mA 100 uV 75 dB HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) (TA=25℃, CO = 10uF unless otherwise specified) For 2.5V Output Voltage Symbol LM1117Q Parameters Condition Min. Typ. Max. Unit 2.5 2.525 V 2.550 V VO Output Voltage VIN = 4.0V, IO = 10mA 2.475 VO Output Voltage VIN = 4.0V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 2.450 ΔVLINE Line Regulation IO = 0mA , VIN = 4.0V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 4.5 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 12 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR 5 1000 mA 100 uV 75 dB (TA=25℃, CO = 10uF unless otherwise specified) For 2.85V Output Voltage Symbol 60 1250 Parameters Condition Min. Typ. Max. Unit 2.85 2.878 V 2.907 V VO Output Voltage VIN = 4.4V, IO = 10mA 2.821 VO Output Voltage VIN = 4.4V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 2.793 ΔVLINE Line Regulation IO = 0mA , VIN = 4.4 to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 4.85 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 12 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR Jul. 2011 Rev. 1.0 5 1000 -6- 60 1250 mA 100 uV 75 dB HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) (TA=25℃, CO = 10uF unless otherwise specified) For 3.3V Output Voltage Symbol LM1117Q Parameters Condition Min. Typ. Max. Unit 3.3 3.333 V 3.366 V VO Output Voltage VIN = 4.8V, IO = 10mA 3.267 VO Output Voltage VIN = 4.8V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 3.234 ΔVLINE Line Regulation IO = 0mA , VIN = 4.8V to 12V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 5.3 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 12 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR 5 1000 mA 100 uV 75 dB (TA=25℃, CO = 10uF unless otherwise specified) For 5.0V Output Voltage Symbol 60 1250 Parameters Condition Min. Typ. Max. Unit 5.0 5.050 V 5.100 V VO Output Voltage VIN = 6.5V, IO = 10mA 4.950 VO Output Voltage VIN = 6.5V to 15V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 4.900 ΔVLINE Line Regulation IO = 0mA , VIN = 6.5V to 15V 0.1 0.2 % ΔVLOAD Load Regulation IO = 0mA to 1A, VIN = 7.0 V 0.2 0.4 % VIN Operating Input Voltage IO = 100mA 15 V ID Quiescent Current VIN - VO = 5V 10 mA IO Current Limit VIN - VO = 5V EN Output Noise(%VO) B = 10Hz to 10kHz, TJ = 25℃ Supply Voltage Rejection IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP SVR Jul. 2011 Rev. 1.0 5 1000 -7- 60 1250 mA 100 uV 75 dB HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) (TA=25℃, CO = 10uF unless otherwise specified) For All Output Voltage Symbol VD Parameters Dropout Voltage LM1117Q Condition Typ. Max. Unit IO = 100mA 1.0 1.1 V IO = 500mA 1.1 1.2 V IO = 1A 1.2 1.3 V Temperature Stability Long Term Stability 1000 hrs, TJ = 125℃ Thermal Regulation TA = 25℃ 30ms Pulse Min. 0.5 % 0.3 % 0.003 %/W TYPICAL APPLICATION CIRCUIT Fig.1 1A Current Output Fig.2 Typical Adjustable Regulator Jul. 2011 Rev. 1.0 -8- HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q Fig.3 Voltage Regulator with Reference Fig.4 Battery Backed-up Regulated Supply Jul. 2011 Rev. 1.0 -9- HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q TYPICAL OPERATING CHARACTERISTICS Fig.8 DROPOUT VOLTAGE VS OUTPUT CURRENT Fig.7 OUTPUT VOLTAGE CHANGE VS TEMPERATURE Fig.10 OUTPUT SHORT CIRCUIT CURRENT VS TEMPERATURE IQ, QUIESCENT CURRENT CHANGE (%) Fig.9 OUTPUT SHORT CIRCUIT CURRENT VS DIFFERENTIAL VOLTAGE Fig.12 QUIESCENT CURRENT CHANGE VS TEMPERATURE Fig.11 ADJ PIN CURRENT VS TEMPERATURE Jul. 2011 Rev. 1.0 - 10 - HTC 1A L.D.O VOLTAGE REGULATOR(Automotive Grade) LM1117Q APPLICATION INFORMATION Maximum Output Current Capability The LM1117Q can deliver a continuous current of 1A over the full operating junction temperature range. However, the output current is limited by the restriction of power dissipation which differs from packages. A heat sink may be required depending on the maximum power dissipation and maximum ambient temperature of application. With respect to the applied package, the maximum output current of 1A may be still undeliverable due to the restriction of the power dissipation of LM1117Q. Under all possible conditions, the junction temperature must be within the range specified under operating conditions. The temperatures over the device are given by: TC = TA + PD X θCA / TJ = TC + PD X θJC / TJ = TA + PD X θJA where TJ is the junction temperature, TC is the case temperature, TA is the ambient temperature, PD is the total power dissipation of the device, θCA is the thermal resistance of case-to-ambient, θJC is the thermal resistance of junction-to-case, and θJA is the thermal resistance of junction to ambient. The total power dissipation of the device is given by: PD = PIN – POUT = (VIN X IIN)–(VOUT X IOUT) = (VIN X (IOUT+IGND)) – (VOUT X IOUT) = (VIN - VOUT) X IOUT + VIN X IGND where IGND is the operating ground current of the device which is specified at the Electrical Characteristics. The maximum allowable temperature rise (TRmax) depends on the maximum ambient temperature (TAmax) of the application, and the maximum allowable junction temperature (TJmax): TRmax = TJmax – TAmax The maximum allowable value for junction-to-ambient thermal resistance, θJA, can be calculated using the formula: θJA = TRmax / PD = (TJmax – TAmax) / PD LM1117Q is available in SOT223 package. The thermal resistance depends on amount of copper area or heat sink, and on air flow. If the maximum allowable value of θJA calculated above is over 137°C/W for SOT-223 package, no heat sink is needed since the package can dissipate enough heat to satisfy these requirements. If the value for allowable θJA falls near or below these limits, a heat sink or proper area of copper plane is required. In summary, the absolute maximum ratings of thermal resistances are as follow: Absolute Maximum Ratings of Thermal Resistance Characteristic Thermal Resistance Junction-To-Ambient / SOT-223 Symbol Rating Unit θJA-SOT-223 137 °C/W 2 No heat sink / No air flow / No adjacent heat source / 0.066 inch copper area. (TA=25°C) Jul. 2011 Rev. 1.0 - 11 - HTC