1.5A Ultra Low Dropout Linear Regulator TJ3965 SOT-223 3L / 5LPKG FEATURES Ultra Low Dropout Voltage Low Ground Pin Current Excellent Line and Load Regulation MSOP8 / SOP8 / SOP8-PP Guaranteed Output Current of 1.5A Available in SOT-223, MSOP8, SOP8, SOP8-PP, TO-263, and TO-220 Packages Fixed Output Voltages : 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V TO-263 3L / 5LPKG SENSE Option Improves Load Regulation Over-Temperature/Over-Current Protection -40℃ to 125℃ Junction Temperature Range TO-220 3L / 5L PKG APPLICATION Battery Powered Equipments Motherboards and Graphic Cards Microprocessor Power Supplies Peripheral Cards ORDERING INFORMATION High Efficiency Linear Regulators Device (Marking) 3965S-ADJ 3965S-X.X TJ3965MD-ADJ TJ3965MD-X.X TJ3965D-ADJ TJ3965D-X.X TJ3965DP-ADJ TJ3965DP-X.X TJ3965R-ADJ Battery Chargers DESCRIPSION The TJ3965 series of high performance ultra low-dropout linear regulators operates from 2.5V to 6V 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 µprocessor applications. The TJ3965 is developed on a CMOS process technology which allows low quiescent TJ3965R-X.X TJ3965T-ADJ TJ3965T-X.X Package SOT-223 3L/5L MSOP8 SOP8 SOP8-PP TO-263 3L/5L TO-220 3L/5L X.X = Output Voltage = 1.2, 1.8, 2.5, 3.3, and 5.0 current operation independent of output load current. This CMOS process also allows the TJ3965 to operate under extremely low dropout conditions. Absolute Maximum Ratings CHARACTERISTIC SYMBOL MIN. MAX. UNIT Input Supply Voltage (Survival) VIN - 6.5 V Enable Input Voltage (Survival) VEN - 6.5 V Maximum Output Current IMAX - 1.5 A Lead Temperature (Soldering, 5 sec) TSOL 260 Storage Temperature Range TSTG -65 150 Operating Junction Temperature Range TJOPR -40 125 Oct. 2006 – R1.2.1 1/9 ℃ ℃ ℃ HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 Ordering Information VOUT Package ADJ SOT-223 5L TJ3965S-ADJ-5L 1.5A, Adjustable, Enable 3965-ADJ Reel ADJ MSOP8 TJ3965MD-ADJ-8L 1.5A, Adjustable, Enable TJ3965-ADJ Reel ADJ SOP8 TJ3965D-ADJ-8L 1.5A, Adjustable, Enable TJ3965-ADJ Reel ADJ SOP8-PP TJ3965DP-ADJ-8L 1.5A, Adjustable, Enable TJ3965-ADJ Reel ADJ TO-263 5L TJ3965R-ADJ-5L 1.5A, Adjustable, Enable TJ3965-ADJ Reel or Tube ADJ TO-220 5L TJ3965T-ADJ-5L 1.5A, Adjustable, Enable TJ3965-ADJ Tube 1.2V SOT-223 3L TJ3965S-1.2V-3L 1.5A 3965-1.2 Reel 1.2V SOT-223 5L TJ3965S-1.2V-5L 1.5A, Enable, SENSE 3965-1.2 Reel 1.2V MSOP8 TJ3965MD-1.2V-8L 1.5A, Enable, SENSE TJ3965-1.2 Reel 1.2V SOP8 TJ3965D-1.2V-8L 1.5A, Enable, SENSE TJ3965-1.2 Reel 1.2V SOP8-PP TJ3965DP-1.2-8L 1.5A, Enable, SENSE TJ3965-1.2 Reel 1.2V TO-263 3L TJ3965R-1.2V-3L 1.5A TJ3965-1.2 Reel or Tube 1.2V TO-263 5L TJ3965R-1.2V-5L 1.5A, Enable, SENSE TJ3965-1.2 Reel or Tube 1.2V TO-220 3L TJ3965T-1.2V-3L 1.5A TJ3965-1.2 Tube 1.2V TO-220 5L TJ3965T-1.2V-5L 1.5A, Enable, SENSE TJ3965-1.2 Tube 1.8V SOT-223 3L TJ3965S-1.8V-3L 1.5A 3965-1.8 Reel 1.8V SOT-223 5L TJ3965S-1.8V-5L 1.5A, Enable, SENSE 3965-1.8 Reel 1.8V MSOP8 TJ3965MD-1.8V-8L 1.5A, Enable, SENSE TJ3965-1.8 Reel 1.8V SOP8 TJ3965D-1.8V-8L 1.5A, Enable, SENSE TJ3965-1.8 Reel 1.8V SOP8-PP TJ3965DP-1.8V-8L 1.5A, Enable, SENSE TJ3965-1.8 Reel 1.8V TO -263 3L TJ3965R-1.8V-3L 1.5A TJ3965-1.8 Reel or Tube 1.8V TO -263 5L TJ3965R-1.8V-5L 1.5A, Enable, SENSE TJ3965-1.8 Reel or Tube 1.8V TO-220 3L TJ3965T-1.8V-3L 1.5A TJ3965-1.8 Tube 1.8V TO-220 5L TJ3965T-1.8V-5L 1.5A, Enable, SENSE TJ3965-1.8 Tube 2.5V SOT-223 3L TJ3965S-2.5V-3L 1.5A 3965-2.5 Reel 2.5V SOT-223 5L TJ3965S-2.5V-5L 1.5A, Enable, SENSE 3965-2.5 Reel 2.5V MSOP8 TJ3965MD-2.5V-8L 1.5A, Enable, SENSE TJ3965-2.5 Reel 2.5V SOP8 TJ3965D-2.5V-8L 1.5A, Enable, SENSE TJ3965-2.5 Reel 2.5V SOP8-PP TJ3965DP-2.5V-8L 1.5A, Enable, SENSE TJ3965-2.5 Reel 2.5V TO -263 3L TJ3965R-2.5V-3L 1.5A TJ3965-2.5 Reel or Tube 2.5V TO -263 5L TJ3965R-2.5V-5L 1.5A, Enable, SENSE TJ3965-2.5 Reel or Tube 2.5V TO-220 3L TJ3965T-2.5V-3L 1.5A TJ3965-2.5 Tube 2.5V TO-220 5L TJ3965T-2.5V-5L 1.5A, Enable, SENSE TJ3965-2.5 Tube Oct. 2006 – R1.2.1 Order No. Description 2/9 Package Marking Supplied As HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 Ordering Information (Continued) VOUT Package Order No. Description Package Marking Supplied As 3.3V SOT-223 3L TJ3965S-3.3V-3L 1.5A 3965-3.3 Reel 3.3V SOT-223 5L TJ3965S-3.3V-5L 1.5A, Enable, SENSE 3965-3.3 Reel 3.3V MSOP8 TJ3965MD-3.3V-8L 1.5A, Enable, SENSE TJ3965-3.3 Reel 3.3V SOP8 TJ3965D-3.3V-8L 1.5A, Enable, SENSE TJ3965-3.3 Reel 3.3V SOP8-PP TJ3965DP-3.3V-8L 1.5A, Enable, SENSE TJ3965-3.3 Reel 3.3V TO -263 3L TJ3965R-3.3V-3L 1.5A TJ3965-3.3 Reel or Tube 3.3V TO -263 5L TJ3965R-3.3V-5L 1.5A, Enable, SENSE TJ3965-3.3 Reel or Tube 3.3V TO-220 3L TJ3965T-3.3V-3L 1.5A TJ3965-3.3 Tube 3.3V TO-220 5L TJ3965T-3.3V-5L 1.5A, Enable, SENSE TJ3965-3.3 Tube 5.0V SOT-223 3L TJ3965S-5.0V-3L 1.5A 3965-5.0 Reel 5.0V SOT-223 5L TJ3965S-5.0V-5L 1.5A, Enable, SENSE 3965-5.0 Reel 5.0V MSOP8 TJ3965MD-5.0V-8L 1.5A, Enable, SENSE TJ3965-5.0 Reel 5.0V SOP8 TJ3965D-5.0V-8L 1.5A, Enable, SENSE TJ3965-5.0 Reel 5.0V SOP8-PP TJ3965DP-5.0V-8L 1.5A, Enable, SENSE TJ3965-5.0 Reel 5.0V TO -263 3L TJ3965R-5.0V-3L 1.5A TJ3965-5.0 Reel or Tube 5.0V TO -263 5L TJ3965R-5.0V-5L 1.5A, Enable, SENSE TJ3965-5.0 Reel or Tube 5.0V TO-220 3L TJ3965T-5.0V-3L 1.5A TJ3965-5.0 Tube 5.0V TO-220 5L TJ3965T-5.0V-5L 1.5A, Enable, SENSE TJ3965-5.0 Tube T J 3 9 6 5 D P – 3.3 V – 8 L Lead Count : 3L(Fixed Output Only) / 5L / 8L Output Voltage : ADJ / 1.2V / 1.8V / 2.5V / 3.3V / 5.0V Package Type S MD D DP R T : SOT223 : MSOP8 : SOP8 : SOP8-PP : TO263 : TO220 Root Name Product Code Oct. 2006 – R1.2.1 3/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 PIN CONFIGURATION SOT223-3L SOT223-5L TO263-3L MSOP8 TO263-5L SOP8 / SOP8-PP TO220-3L TO220-5L PIN DESCRIPTION SOT223 / SOT263 / TO220 3 LEAD SOT-223 5 LEAD Pin No. Name Function Name Function 1 VIN Input Supply EN Chip Enable 2 GND Ground VIN Input Supply 3 VOUT Output Voltage VOUT Output Voltage 4 - - SENSE/ADJ Remote Sense or Output Adjust 5 - - GND Ground TO263 / TO220 5 LEAD MSOP8 / SOP8 / SOP8-PP 8 LEAD Pin No. Name Function Name Function 1 EN Chip Enable EN Chip Enable 2 VIN Input Supply VIN Input Supply 3 GND Ground VOUT Output Voltage 4 VOUT Output Voltage SENSE/ADJ Remote Sense or Output Adjust 5 / 6/ 7 / 8 SENSE/ADJ Remote Sense or Output Adjust GND Ground Oct. 2006 – R1.2.1 4/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 TYPICAL APPLICATION Typical 3 Pin Application INPUT VIN + μ - VOUT OUTPUT TJ3965 CIN 68 F + GND - COUT μ 33 F Typical 5 / 8 Pin Application VIN INPUT + 68μF - VOUT OUTPUT TJ3965 CIN EN EN + SENSE GND - COUT μ 33 F 5 / 8 Pin Remote Load Sense Application INPUT + 68μF - VIN OUTPUT VOUT TJ3965 CIN EN EN + SENSE GND - L O A D COUT μ 33 F Typical Adjustable Version Application VIN INPUT + 68μF - VOUT TJ3965 CIN EN EN OUTPUT R2 ADJ GND + - R1 COUT μ 33 F * TJ3965 can deliver a continuous current of 1.5A 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 1.5A may be still undeliverable. * See Application Information Oct. 2006 – R1.2.1 5/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 ELECTRICAL CHARACTERISTICS(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) + 1 V, IL = 10 mA, CIN = 68 uF, COUT = 33 uF, VEN = VIN - 0.3 V PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT -2 -3 0 2 3 % 1.117 1.110 1.145 1.174 1.188 V Output Voltage Tolerance VO 10 mA < IL < 1.5 A VOUT+1 V < VIN < 6 V Adjustable Pin Voltage (ADJ version) VADJ 10 mA < IL < 1.5 A VOUT+1.5 V < VIN < 6 V ∆VLINE VOUT+1 V < VIN < 6 V - 0.25 0.55 0.60 %/V ∆VLOAD 10 mA < IL < 1.5 A - 0.25 0.50 0.55 % IL = 150 mA - 40 55 65 Line Regulation (Note 3) Load Regulation Dropout Voltage (Note 3, 4) (Note 5) Ground Pin Current Ground Pin Current VDROP (Note 6) (Note 7) IL = 1.5 A - 380 IL = 150 mA - 30 55 75 IL = 1.5 A - 30 55 75 VEN < 0.2 V - 30 55 75 uA IGND1 IGND2 mV 450 550 uA Output Peak Current IPEAK 2.0 1.7 2.2 - A Thermal Shutdown Temperature TSD - 165 - ℃ Thermal Shutdown Hysteresis ∆TSD - 10 - ℃ Logic Low VIL Output = Low - 0 0.2 V Logic High VIH Output = High VIN-0.3 VIN - V IEN VEN = VIN - 5 20 nA Enable threshold Enable Input Current 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 20ms current pulse. Devices are tested for load regulation in the load range from 10mA to 1.5A 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. Note 7. Ground current, or standby current, is the input current drawn by a regulator when the output voltage is disabled by an enable signal. Oct. 2006 – R1.2.1 6/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 TYPICAL OPERATING CHARACTERISTICS Ambient Temperature vs. Output Voltage Change Output Current vs. Dropout Voltage Power Dissipation vs. Case Temperature, MSOP8 Power Dissipation vs. Case Temperature, SOP8 Power Dissipation vs. Case Temperature, SOP8-PP T.B.D. Oct. 2006 – R1.2.1 7/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 APPLICATION INFORMATION Output Adjustment (Adjustable Version) An adjustable output device has output voltage range of 1.145V to 5.0V. To obtain a desired output voltage, the following equation can be used with R1 resistor range of 10kΩ to 220kΩ V R 2 = R1 OUT − 1 1.145 To enhance output stability, a capacitor of 68pF to 100pF can be placed in series with VOUT and ADJ. SENSE Pin In applications where the regulator output is not very close to the load, the TJ3965 can provide better remote load regulation characteristics using the SENSE pin. TJ3965 regulates the voltage at the output pin. Hence, the voltage at the remote load will be lower than the voltage at the output pin as a value of the voltage drop across the trace series resistance. If the sense option pin is not required, the sense pin must be connected to the VOUT pin. Connecting the sense pin to the remote load will provide regulation at the remote load because the TJ3965 regulates the voltage at the sense pin when the sense option pin is used. Maximum Output Current Capability The TJ3965 can deliver a continuous current of 1.5A 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 1.5A may be still undeliverable due to the restriction of the power dissipation of TJ3965. 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 Oct. 2006 – R1.2.1 8/9 HTC 1.5A Ultra Low Dropout Linear Regulator TJ3965 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 TJ3965 is available in SOT223, MSOP8, SOP8-PP, TO263, and TO220 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 SO-223 package, over 220°C/W for MSOP8 package, over 165°C/W for SOP8 package, over 170°C/W for SOP8-PP package, over 80 °C/W for TO263 package, over 75 °C/W for TO220 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 No heat sink / No air flow / No adjacent heat source / TA = 25°C Symbol Max. Rating Unit Thermal Resistance Junction-To-Ambient / SOT223 θJA-SOT223 140 °C/W Thermal Resistance Junction-To-Ambient / MSOP8 θJA-MSOP8 220 °C/W Thermal Resistance Junction-To-Ambient / SOP8 θJA-SOP8 165 °C/W θJA-SOP8-PP 175 °C/W Thermal Resistance Junction-To-Ambient / TO263 θJA-TO263 80 °C/W Thermal Resistance Junction-To-Ambient / TO220 θJA-TO220 75 °C/W Characteristic Thermal Resistance Junction-To-Ambient / SOP8-PP T.B.D. Oct. 2006 – R1.2.1 9/9 HTC