1A L.D.O VOLTAGE REGULATOR
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1 FEATURES Output Current up to 1A MLCC, Aluminum electrolytic capacitor applicable Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Line Regulation typically at 0.1% max. Load Regulation typically at 0.2% max. Internal Current and Terminal Protection Surface Mount Package SOT-223 Moisture Sensitivity Level 3 SOT-223 PKG APPLICATION Active SCSI Terminators Portable/ Plan Top/ Notebook Computers High Efficiency Linear Regulators SMPS Post Regulators Mother B/D Clock Supplies Disk Drives Battery Chargers ORDERING INFORMATION Device Package -ADJ -X.X SOT-223 3L X.X = Output Voltage = 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V DESCRIPTION The TJ1117 is a low power positive-voltage regulator designed to meet 1A output current. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers. The TJ1117 features very low quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases. TJ1117 is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V output voltages. The TJ1117 is offered in a 3-pin surface mount package SOT-223. The output capacitor of 10 μf or larger is needed for output stability of TJ1117 as required by most of the other regulator circuits. Absolute Maximum Ratings (T A = 25, unless otherwise specified) CHARACTERISTIC SYMBOL MIN. MAX. UNIT DC Input Voltage V IN - 20 V Lead Temperature (Soldering, 5 seconds) T SOL Operating Junction Temperature Range T OPR Storage Temperature Range T STG Jul R1.1 For LG HTC
2 Ordering Information V OUT Package Order No. Supplied As Status ADJ SOT-223 -ADJ Reel Active 1.2V SOT Reel Active 1.5V SOT Reel Active 1.8V SOT Reel Active 2.5V SOT Reel Active 3.3V SOT Reel Active 5.0V SOT Reel Active TJ 1117 Output Voltage : ADJ / 1.2 / 1.5 / 1.8 / 2.5 / 3.3 / 5.0 Package Type S : SOT-223 Green Mode G : Halogen Free Blank : Pb Free Root Name Product Code Jul R1.1 For LG HTC
3 PIN CONFIGURATION SOT-223 PIN DESCRIPTION Pin No. Name SOT-223 Function 1 ADJ/GND Adjustable / Ground 2 VOUT Output Voltage 3 VIN Input Voltage Typical Application Circuit TJ1117-X.X Vin V IN V OUT Vout C IN 10uF GND C OUT 10uF Jul R1.1 For LG HTC
4 ELECTRICAL CHARACTERISTICS For ADJ Output Voltage V REF Reference Voltage V IN=5V, I O=10mA V V REF Reference Voltage I O = 10mA to 1A, V IN - V REF = 1.5V to 10V (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 10mA, V IN - V REF = 1.5V to 10V % ΔV LOAD Load Regulation I O = 10mA to 1A, V IN - V REF = 2V % I ADJ Adjustment pin Current V IN - V REF = 1.5V to 10V, I O = 100mA ua ΔI ADJ Adjustment Pin Current Change V IN - V REF = 1.5V to 10V, I O = 100mA to 1A ua I O(MIN) Minimum Load Current V IN=5V, V REF=0V 5 10 ma I O Current Limit V IN - V REF = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = % V IN - V REF = 3V, V RIPPLE = 1V PP For 1.2V Output Voltage V O Output Voltage V IN = 2.7V, I O = 10mA V V O Output Voltage V IN = 2.7V to 11.2V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 2.7V to 11.2V % ΔV LOAD Load Regulation I O = 10mA to 1A, V IN = 3.2V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = % V IN - V O = 1.5V, V RIPPLE = 1V PP Jul R1.1 For LG HTC
5 For 1.5V Output Voltage V O Output Voltage V IN = 3.0V, I O = 10mA V V O Output Voltage V IN = 3.0V to 11.5V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 3.0V to 11.5V % ΔV LOAD Load Regulation I O = 0mA to 1A, V IN = 3.5 V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = uv V IN - V O = 3V, V RIPPLE = 1V PP For 1.8V Output Voltage V O Output Voltage V IN = 3.3V, I O = 10mA V V O Output Voltage V IN = 3.3V to 11.8V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 3.3V to 11.8V % ΔV LOAD Load Regulation I O = 0mA to 1A, V IN = 3.8 V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = uv V IN - V O = 3V, V RIPPLE = 1V PP Jul R1.1 For LG HTC
6 For 2.5V Output Voltage V O Output Voltage V IN = 4.0V, I O = 10mA V V O Output Voltage V IN = 4.0V to 12.5V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 4.0V to 12.5V % ΔV LOAD Load Regulation I O = 0mA to 1A, V IN = 4.5 V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = uv V IN - V O = 3V, V RIPPLE = 1V PP For 3.3V Output Voltage V O Output Voltage V IN = 4.8V, I O = 10mA V V O Output Voltage V IN = 4.8V to 13.3V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 4.8V to 13.3V % ΔV LOAD Load Regulation I O = 0mA to 1A, V IN = 5.3 V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = uv V IN - V O = 3V, V RIPPLE = 1V PP Jul R1.1 For LG HTC
7 For 5.0V Output Voltage V O Output Voltage V IN = 6.5V, I O = 10mA V V O Output Voltage V IN = 6.5V to 15V, I O = 0mA to 1A (T J = 0 ~ 125 ) V ΔV LINE Line Regulation I O = 0mA, V IN = 6.5V to 15V % ΔV LOAD Load Regulation I O = 0mA to 1A, V IN = 7.0 V % I D Quiescent Current V IN - V O = 5V 5 10 ma I O Current Limit V IN - V O = 5V ma EN Output Noise(%V O) B = 10Hz to 10kHz, T J = uv V IN - V O = 3V, V RIPPLE = 1V PP For All Output Voltage V D Dropout Voltage I O = 1A, All except for VOUT = 3.3V 1.4 V I O = 1A, VOUT = 3.3V 1.5 V Temperature Stability 0.5 % Long Term Stability 1000 hrs, T J = % Thermal Regulation T A = 25 30ms Pulse %/W Jul R1.1 For LG HTC
8 TYPICAL APPLICATION CIRCUIT TJ1117 Fig.1 1A Current Output TJ1117- ADJ Fig.2 Typical Adjustable Regulator TJ Fig.3 Negative Supply Jul R1.1 For LG HTC
9 TJ Fig.4 Active Terminator for SCSI-2BUS TJ Fig.5 Voltage Regulator with Reference TJ TJ Fig.6 Battery Backed-up Regulated Supply Jul R1.1 For LG HTC
10 TYPICAL OPERATING CHARACTERISTICS OUTPUT VOLTAGE CHANGE(%) V IN = V OUT + 3.0V I OUT = 10mA ADJ, 1.5V, 1.8V, 2.5V 5.0V VIN VOUT, DROPOUT VOLTAGE (V) T J = 125 T J = -40 T J = FREE-AIR TEMPERATURE- Fig.7 OUTPUT VOLTAGE CHANGE VS TEMPERATURE I OUT, OUTPUT CURRENT(mA) Fig.8 DROPOUT VOLTAGE VS OUTPUT CURRENT IADJ, ADJUST PIN CURRENT I OUT = 10mA IQ, QUIESCENT CURRENT CHANGE (%) T A - AMBIENT TEMPERATURE ( ) Fig.9 ADJ PIN CURRENT VS TEMPERATURE T A - AMBIENT TEMPERATURE ( ) Fig.10 QUIESCENT CURRENT CHANGE VS TEMPERATURE Jul R1.1 For LG HTC
11 APPLICATION INFORMATION Maximum Output Current Capability The TJ1117 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 TJ1117. 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 TJ1117 is available in SOT-223 packages. 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 140 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 Symbol Rating Unit Thermal Resistance Junction-To-Ambient / SOT-223 θja-sot C/W No heat sink / No air flow / No adjacent heat source / inch 2 copper area. (T A =25 C) Jul R1.1 For LG HTC
12 REVISION NOTICE The description in this data sheet can be revised without any notice to describe its electrical characteristics properly. Jul R1.1 For LG HTC
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FEATURES Output Current up to 1 A 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.
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