Ultra Low Dropout Linear Regulator TJ1119 FEATURES Ultra Low Dropout Voltage Low Ground Pin Current Excellent Line and Load Regulation Available in SOT-223 Package Fixed Output Voltages : 1.0V, 1.1V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V Over-Temperature/Over-Current Protection SOT-223 3L PKG -40℃ to 125℃ Junction Temperature Range Moisture Sensitivity Level 3 APPLICATION Battery Powered Equipments Motherboards and Graphic Cards Microprocessor Power Supplies Peripheral Cards High Efficiency Linear Regulators Battery Chargers ORDERING INFORMATION Device Package TJ1119S-X.X SOT-223 3L X.X = Output Voltage = 1.0, 1.1, 1.2, 1.5, 1.8, 2.5, and 3.3 DESCRIPTION The TJ1119 series of high performance ultra low-dropout linear regulators operates from 2.5V to 5.5V input supply and provides ultra low-dropout voltage, high output current with low ground current. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond fast to step changes in load which makes them suitable for low voltage micro-processor applications. The TJ1119 is developed on a CMOS process technology which allows low quiescent current operation independent of output load current. This CMOS process also allows the TJ1119 to operate under extremely low dropout conditions. Absolute Maximum Ratings CHARACTERISTIC SYMBOL MIN. MAX. UNIT Input Supply Voltage (Survival) VIN -0.3 6.5 V Maximum Output Current IMAX - 1.0 A Lead Temperature (Soldering, 5 sec) TSOL 260 ℃ Storage Temperature Range TSTG -65 150 ℃ Operating Junction Temperature Range TJOPR -40 125 ℃ SYMBOL MIN. MAX. UNIT VIN 2.5 5.5 V Operating Ratings CHARACTERISTIC Recommend Operating Input Voltage Aug. 2013 - R1.1 1 HTC Ultra Low Dropout Linear Regulator TJ1119 Ordering Information VOUT Package Order No. 1.0 V SOT-223 3L TJ1119S -1.0 1.1 V SOT-223 3L TJ1119S 1.2 V SOT-223 3L 1.5 V Description Supplied As Status 0.8A Reel Contact us -1.1 0.8A Reel Contact us TJ1119S -1.2 0.8A Reel Contact us SOT-223 3L TJ1119S -1.5 0.8A Reel Active 1.8 V SOT-223 3L TJ1119S -1.8 0.8A Reel Contact us 2.5 V SOT-223 3L TJ1119S -2.5 1A Reel Contact us 3.3 V SOT-223 3L TJ1119S -3.3 1A Reel Contact us TJ 1119 Output Voltage : 1.0V / 1.1V / 1.2V / 1.5V / 1.8V / 2.5V / 3.3V Package Type Green Mode S : SOT-223 G : Halogen Free Blank : Pb Free Root Name Product Code PIN CONFIGURATION PIN DESCRIPTION SOT-223 3LD Pin No. 1 VIN 2 3 GND VOUT SOT-223 3L Aug. 2013 - R1.1 2 Name Function 1 VIN Input Voltage 2 GND Ground 3 VOUT Output Voltage HTC Ultra Low Dropout Linear Regulator TJ1119 TYPICAL APPLICATION - Typical Application Circuit INPUT VIN VOUT OUTPUT TJ1119 10µF GND 10µF * TJ1119 can deliver a continuous current of 0.8A/1A over the full operating temperature. 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 0.8A/1A may be still undeliverable. * See Application Information. Aug. 2013 - R1.1 3 HTC Ultra Low Dropout Linear Regulator TJ1119 ELECTRICAL CHARACTERISTICS FOR VOUT ≥ 2.5V(Note 1) Limits in standard typeface are for TJ=25℃, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN(Note 2) = VO(NOM) + 1V, IL = 10 mA, CIN = 10 uF, COUT = 10 uF, VOUT ≥ 2.5V PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage Tolerance VO 10 mA < IL < 1A VOUT+1V < VIN < 5.5V -2 -3 0 2 3 % Output Current IO VOUT ≥ 2.5V - - 1 A Line Regulation(Note 3) ΔVLINE VOUT+1V < VIN < 5.5V - 0.15 0.40 %/V Load Regulation(Note 3, 4) ΔVLOAD 10 mA < IL < 1A - 1.5 - % Dropout Voltage(Note 5) VDROP 55 IL = 500mA 200 IL = 1A 450 650 0.12 0.15 - IL = 100mA Ground Pin Current(Note 6) - IGND1 Power Supply Rejection Ratio PSRR Thermal Shutdown Temperature TSD 80 300 IL = 100mA mV mV mV mA IL = 1A - 0.12 0.20 - f = 1kHz - 55 - dB - 165 - ℃ Note 1. Stresses listed as the absolute maximum ratings may cause permanent damage to the device. These are for stress ratings. Functional operating of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibly to affect device reliability. Note 2. The minimum operating value for input voltage is equal to either (VOUT,NOM + VDROP) or 2.5V, whichever is greater. Note 3. Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage. Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current. Note 4. Regulation is measured at constant junction temperature by using a 10ms current pulse. Devices are tested for load regulation in the load range from 10mA to 1A. Note 5. Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value. Dropout voltage specification applies only to output voltages of 2.5V and above. For output voltages below 2.5V, the dropout voltage is nothing but the input to output differential, since the minimum input voltage is 2.5V. Note 6. Ground current, or quiescent current, is the difference between input and output currents. It's defined by IGND1 = IIN - IOUT under the given loading condition. The total current drawn from the supply is the sum of the load current plus the ground pin current. Aug. 2013 - R1.1 4 HTC Ultra Low Dropout Linear Regulator TJ1119 ELECTRICAL CHARACTERISTICS FOR VOUT < 2.5V(Note 1) Limits in standard typeface are for TJ=25℃, and limits in boldface type apply over the full operating temperature range. (Note 2) Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 10 mA, CIN = 10 uF, COUT = 10 uF, VOUT < 2.5V PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage Tolerance VO 10 mA < IL < 800mA VOUT+1V < VIN < 5.5V -2 -3 0 2 3 % Output Current IO VOUT < 2.5V - - 0.8 A Line Regulation(Note 3) ΔVLINE VOUT+1V < VIN < 5.5V - 0.15 0.40 %/V Load Regulation(Note 3, 7) ΔVLOAD 10 mA < IL < 800mA - 1.5 - % Dropout Voltage(Note 5) VDROP 55 IL = 500mA 200 IL = 800mA 450 650 0.12 0.15 - IL = 100mA Ground Pin Current(Note 6) - IGND1 Power Supply Rejection Ratio PSRR Thermal Shutdown Temperature TSD 80 300 IL = 100mA mV mV mV mA IL = 800mA - 0.12 0.20 - f = 1kHz - 55 - dB - 165 - ℃ Note 7. Regulation is measured at constant junction temperature by using a 10ms current pulse. Devices are tested for load regulation in the load range from 10mA to 800mA. Aug. 2013 - R1.1 5 HTC Ultra Low Dropout Linear Regulator TJ1119 TYPICAL OPERATING CHARACTERISTIC (VIN: 2V/div, VOUT: 2V/div, 1ms/div) (VIN: 2V/div, VOUT: 2V/div, 1ms/div) Vin=3.5V, Vout=2.5V @ Iout=0A Vin=3.5V, Vout=2.5V @ Iout=1A Start Up Transient Response Start Up Transient Response (VIN: 2V/div, VOUT: 20mV/div, 10ms/div) (VIN: 2V/div, VOUT: 20mV/div, 10ms/div) Vin=3.5V to 5.5V, Vout=2.5V @ Iout=10mA Vin=5.5V to 3.5V, Vout=2.5V @ Iout=10mA Line Transient Response Line Transient Response (VOUT: 50mV/div, Iout: 500mA/div, 10ms/div) (VOUT: 50mV/div, Iout: 500mA/div, 10ms/div) Vin=3.5V, Vout=2.5V @ Iout=10mA to 0.5A Vin=3.5V, Vout=2.5V @ Iout=0.5A to 10mA Load Transient Response Load Transient Response Aug. 2013 - R1.1 6 HTC Ultra Low Dropout Linear Regulator TJ1119 (VOUT: 50mV/div, Iout: 500mA/div, 10ms/div) (VOUT: 50mV/div, Iout: 500mA/div, 10ms/div) Vin=3.5V, Vout=2.5V @ Iout=10mA to 1A Vin=3.5V, Vout=2.5V @ Iout=1A to 10mA Load Transient Response Load Transient Response 0 -10 Ripple Rejection [dB] -20 -30 -40 -50 -60 -70 -80 -90 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 Frequency [Hz] Dropout Voltage vs. Ambient Power Supply Rejection Temperature Ratio Aug. 2013 - R1.1 7 HTC Ultra Low Dropout Linear Regulator TJ1119 APPLICATION INFORMATION Introduction TJ1119 is intended for applications where high current capability and very low dropout voltage are required. It provides a simple, low cost solution that occupies very little PCB estate. Component Selection Input Capacitor : A large bulk capacitance over than 4.7uF should be closely placed to the input supply pin of the TJ1119 to ensure that the input supply voltage does not sag. Also a minimum of 4.7uF ceramic capacitor is recommended to be placed directly next to the VIN Pin. It allows for the device being some distance from any bulk capacitor on the rail. Additionally, input droop due to load transients is reduced, improving load transient response. Output Capacitor : A minimum ceramic capacitor over than 4.7uF should be very closely placed to the output voltage pin of the TJ1119. Increasing capacitance will improve the overall transient response and stability. Maximum Output Current Capability The TJ1119 can deliver a continuous current of 0.8A/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 0.8A/1A may be still undeliverable due to the restriction of the power dissipation of TJ1119. 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 TJ1119 is available in SOT-223. 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 as described in Table 1, 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. Aug. 2013 - R1.1 8 HTC Ultra Low Dropout Linear Regulator TJ1119 Table. 1. Absolute Maximum Ratings of Thermal Resistance No heat sink / No air flow / No adjacent heat source / TA = 25°C Characteristic Symbol θJA-SOT223 Thermal Resistance Junction-To-Ambient / SOT-223 Rating Unit 140 °C/W In case that there is no cooling solution and no heat sink / minimum copper plane area for heat sink, the maximum allowable power dissipation of each package is as follow; Characteristic Symbol Maximum Allowable Power Dissipation at TA=25°C / SOT-223 PDMax-SOT223 Rating Unit 0.714 W - Please note that above maximum allowable power dissipation is based on the minimum copper plane area which does not exceed the proper footprint of the package. And the ambient temperature is 25°C. If proper cooling solution such as heat sink, copper plane area, air flow is applied, the maximum allowable power dissipation could be increased. However, if the ambient temperature is increased, the allowable power dissipation would be decreased. Aug. 2013 - R1.1 9 HTC