TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 D D D D D D Automatic Input Voltage Source Selection Glitch-Free Regulated Output 5-V Input Voltage Source Detector With Hysteresis 400-mA Load Current Capability With 5-V or 3.3-V Input Source Low rDS(on) Auxiliary Switch Thermally Enhanced Packaging Concept for Efficient Heat Management D PACKAGE (TOP VIEW) 5VAUX 5VCC 3.3VOUT 3.3VAUX 1 8 2 7 3 6 4 5 GND GND GND GND description The TPPM0301 is a low-dropout regulator with auxiliary power management that provides a constant 3.3-V supply at the output capable of driving a 400-mA load. The TPPM0301 provides a regulated power output for systems that have multiple input sources and require a constant voltage source with a low-dropout voltage. This is a single output, multiple input intelligent power source selection device with a low-dropout regulator for either 5VCC or 5VAUX inputs, and a low- resistance bypass switch for the 3.3VAUX input. Transitions may occur from one input supply to another without generating a glitch, outside of the specification range, on the 3.3-V output. The device has an incorporated reverse blocking scheme to prevent excess leakage from the input terminals in the event that the output voltage is greater than the input voltage. The input voltage is prioritized in the following order: 5VCC, 5VAUX, and 3.3VAUX. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 functional block diagram Linear Regulator With LDO 5VCC 3.3VOUT 5-V Detection Current Sensor Over Temperature Gate Drive and Control 5VAUX 5VAUX Detection Linear Regulator With LDO GND Current Sensor Gate Drive and Control Low ON Resistance Switch 3.3VAUX 3VAUX Detection Current Sensor Gate Drive 5-V Detection and Control Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION 3.3VAUX 4 I 3.3-V auxiliary input 3.3VOUT 3 O 3.3-V output with a typical capacitance load of 4.7 µF 5VAUX 1 I 5-V auxiliary input 5VCC 2 I 5-V main input GND 5, 6, 7, 8 I Ground 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 Table 1. Input Selection INPUT VOLTAGE STATUS (V) 3.3VAUX INPUT SELECTED OUTPUT (V) OUTPUT (I) 5VCC/5VAUX/3.3VAUX 3.3VOUT 5VCC 5VAUX 0 0 0 None 0 IL (mA) 0 0 0 3.3 3.3VAUX 3.3 375 0 5 0 5VAUX 3.3 400 0 5 3.3 5VAUX 3.3 400 5 0 0 5VCC 3.3 400 5 0 3.3 5VCC 3.3 400 5 5 0 5VCC 3.3 400 5 5 3.3 5VCC 3.3 400 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage, 5-V main input, V(5VCC) (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Auxiliary voltage, 5-V input, V(5VAUX) (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Auxiliary voltage, 3.3-V input, V(3.3VAUX) (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V 3.3-V output current limit, I(LIMIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A Continuous power dissipation, PD (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W Electrostatic discharge susceptibility, human body model, V(HBMESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV Operating ambient temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 150°C Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 5°C to 120°C Lead temperature (soldering, 10 second), T(LEAD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values are with respect to GND. 2. Absolute negative voltage on these terminal should not be below –0.5 V. 3. RθJA must be less than 55°C/W, typically achieved with two square inches of copper printed circuit board area connected to the GND terminals for heat dissipation or equivalent. recommended operating conditions MIN TYP MAX UNIT 5-V main input, V(5VCC) 4.5 5.5 V 5-V auxiliary input, V(5VAUX) 4.5 5.5 V 3.3-V auxiliary input, V(3.3VAUX) 3 Load capacitance, CL 4.23 4.7 3.6 V 5.17 µF Load current, IL 0 400 mA Ambient temperature, TA 0 70 °C POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 electrical characteristics over recommended operating free-air temperature range, TA = 0°C to 70°C, CL = 4.7 µF (unless otherwise noted) PARAMETER TEST CONDITIONS V(5VCC)/ V(5VAUX) 5-V inputs I(Q) Quiescent supplyy current IL I(LIMIT) T(TSD)† Output load current Thys† V(3.3VOUT) Thermal hysteresis CL Load capacitance Ilkg(REV) Reverse leakage output current MIN TYP MAX 4.5 5 5.5 2.5 5 mA 250 500 µA 1 1.5 From 5VCC or 5VAUX terminals, IL = 0 to 400 mA From 3.3VAUX terminal, IL = 0 A 0.4 Output current limit 3.3VOUT = 0 V Thermal shutdown 3 3VOUT output shorted to 0 V 3.3VOUT 3.3-V output IL = 400 mA Minimal ESR to insure stability of regulated output 150 180 15 3.135 3.3 3.465 V A °C V µF 4.7 Tested for input that is grounded. 3.3VAUX, 5VAUX or 5VCC = GND, 3.3VOUT = 3.3 V UNIT 50 µA † Design targets only. Not tested in production. 5-V detect PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(TO_LO) Threshold voltage, low 5VAUX or 5VCC ↓ 3.85 4.05 4.25 V V(TO_HI) Threshold voltage, high 5VAUX or 5VCC ↑ 4.1 4.3 4.5 V MIN TYP MAX auxiliary switch PARAMETER TEST CONDITIONS R(SWITCH) Auxiliary switch resistance 5VAUX = 5VCC = 0 V, 3.3VAUX = 3.3 V, IL = 150 mA ∆VO(∆VI) ∆VO(∆IO) Line regulation voltage 5VAUX or 5VCC = 4.5 V to 5.5 V Load regulation voltage 20 mA < IL < 400 mA VI – VO Dropout voltage IL < 400 mA 0.4 2 UNIT Ω mV 40 mV 1 V thermal characteristics PARAMETER MIN TYP MAX UNIT RθJC Thermal impedance, junction-to-case 38 °C/W RθJA Thermal impedance, junction-to-ambient 97 °C/W 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 THERMAL INFORMATION To ensure reliable operation of the device, the junction temperature of the output device must be within the safe operating area (SOA). This is achieved by having a means to dissipate the heat generated from the junction of the output structure. There are two components that contribute to thermal resistance. They consist of two paths in series. The first is the junction to case thermal resistance, RθJC; the second is the case to ambient thermal resistance, RθCA. The overall junction to ambient thermal resistance, RθJA, is determined by: RθJA = RθJC + RθCA The ability to efficiently dissipate the heat from the junction is a function of the package style and board layout incorporated in the application. The operating junction temperature is determined by the operating ambient temperature, TA, and the junction power dissipation, PJ. The junction temperature, TJ, is equal to the following thermal equation: TJ = TA + PJ (RθJC) + PJ (RθCA) TJ = TA + PJ (RθJA) This particular application uses the enhanced 8-pin SO package with an integral fused lead frame (terminals 5 to 8). By incorporating a dedicated heat spreading copper plane of at least two square inches on a double-side printed-circuit board (PCB), a thermal resistance of junction to ambient, RθJA, of 50°C/W can be obtained. Alternatively, if no dedicated copper plane is incorporated for this device and the PCB has a multilayer construction, the ground terminals (5 to 8) could be electrically connected to the ground plane of the board. This will provide a means for heat spreading through the copper plane associated within the PCB (GND layer). This concept could provide a thermal resistance from junction to ambient, RθJA, of 70°C/W if implemented correctly. Hence, maximum power dissipation allowable for an operating ambient temperature of 70°C, and a maximum junction temperature of 150°C is determined as: PJ = (TJ – TA) / RθJA PJ = (150 – 70) / 50 = 1.6 W Using two square inches of dedicated copper plane on double-sided PCB, PJ = (150 – 70) / 70 = 1.14 W Using a multilayer board and utilizing the ground plane for heat spreading, worst case maximum power dissipation is determined by: PD = (5.5 – 3) × 0.4 = 1 W Normal operating maximum power dissipation is (see Figure 1): PD = (5 – 3.3) × 0.4 = 0.68 W POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 THERMAL INFORMATION Power Dissipation Derate Curve Using Two Square Inches of Copper Heat Spreader on a Double-Sided PCB Power Dissipation Derate Curve Using Multilayer Board With The Ground Plane for Heat Spreader Power – W 2.5 1.78 1 0.68 25 80 100 116 103 Ambient Temperature – °C 150 NOTE: These curves are to be used for guideline purposes only. For a particular application, a more specific thermal characterization is required. Figure 1. Power Dissipation Derating Curves APPLICATION INFORMATION 1 4.7 µF GND 5VCC GND 8 0.1 µF 2 4.7 µF 5VAUX 0.1 µF 7 TPPM0301 3 3.3VOUT GND 3.3VAUX GND 6 4.7 µF 4 4.7 µF 5 0.1 µF Figure 2. Typical Application Schematic 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPPM0301 400-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS315 – SEPTEMBER 2000 MECHANICAL DATA D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0.050 (1,27) 0.020 (0,51) 0.014 (0,35) 14 0.010 (0,25) M 8 0.008 (0,20) NOM 0.244 (6,20) 0.228 (5,80) 0.157 (4,00) 0.150 (3,81) Gage Plane 0.010 (0,25) 1 7 0°– 8° A 0.044 (1,12) 0.016 (0,40) Seating Plane 0.069 (1,75) MAX 0.010 (0,25) 0.004 (0,10) PINS ** 0.004 (0,10) 8 14 16 A MAX 0.197 (5,00) 0.344 (8,75) 0.394 (10,00) A MIN 0.189 (4,80) 0.337 (8,55) 0.386 (9,80) DIM 4040047 / D 10/96 NOTES: A. B. C. D. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15). Falls within JEDEC MS-012 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPPM0301DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPPM0301DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 17-May-2007 TAPE AND REEL INFORMATION Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com Device TPPM0301DR 17-May-2007 Package Pins D 8 Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) FMX 330 0 6.4 5.2 2.1 8 TAPE AND REEL BOX INFORMATION Device Package Pins Site Length (mm) Width (mm) Height (mm) TPPM0301DR D 8 FMX 342.9 336.6 20.6 Pack Materials-Page 2 W Pin1 (mm) Quadrant 12 PKGORN T1TR-MS P IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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