TPPM0303DG4

TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 D D D D D Automatic Input Voltage Source Selection Glitch-Free Regulated Output 5-V Input Voltage Source Detector With Hysteresis 250-mA Load Current Capability With 5-V or 3.3-V Input Source Low rDS(on) Auxiliary Switch D PACKAGE (TOP VIEW) 5VAUX 5VCC 3.3VOUT 3.3VAUX 1 8 2 7 3 6 4 5 NC GND NC NC description The TPPM0303 is a low-dropout regulator with auxiliary power management that provides a constant 3.3-V supply at the output capable of driving a 250-mA load. The TPPM0303 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  2001, 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 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 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 7 I Ground NC 2 5,6,8 No internal connection POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 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 3.3 250 0 5 0 5VAUX 3.3 250 0 5 3.3 5VAUX 3.3 250 5 0 0 5VCC 3.3 250 5 0 3.3 5VCC 3.3 250 5 5 0 5VCC 3.3 250 5 5 3.3 5VCC 3.3 250 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 (low-K), PD (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.625 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. The device derates with increase in ambient temperature, TA. See Thermal Information section. 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 3.6 V 5.17 µF 3.3-V auxiliary input, V(3.3VAUX) Load capacitance, CL 4.23 4.7 Load current, IL 0 250 mA Ambient temperature, TA 0 70 °C POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 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 From 5VCC or 5VAUX terminals, IL = 0 to 250 mA From 3.3VAUX terminal, IL = 0 A 0.25 Output current limit 3.3VOUT = 0 V Thermal shutdown 3 3VOUT output shorted to 0 V 3.3VOUT 3.3-V output IL = 250 mA Minimal ESR to insure stability of regulated output 2 150 180 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 < 250 mA VI – VO Dropout voltage IL < 250 mA 0.4 2 UNIT Ω mV 40 mV 1 V thermal characteristics PARAMETER RθJC RθJA MIN Thermal impedance, junction-to-case Thermal im impedance edance, junction-to-ambient MAX UNIT 39 °C/W Low-K (see Note 4) 176 High-K (see Note 4) 98 NOTE 4: See JEDEC PCB specifications for low-K and high-K. 4 TYP POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 °C/W TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 TYPICAL CHARACTERISTICS 5VCC 3.3VAUX 3.3VOUT 3.3VOUT (250-mA Load) Figure 1. 5VCC Cold Start (250-mA Load) Figure 2. 3.3VAUX Cold Start 5VCC (Offset = 4.5 V) 3.3VAUX (Offset = 3.3 V) 5VAUX (Offset = 4.8 V) 5VCC (Offset = 4.5 V) 3.3VOUT (Offset = 3.3 V) 3.3VOUT (Offset = 3.3 V) (250-mA Load) Figure 3. 5VCC Power Up (5VAUX = 5 V) POST OFFICE BOX 655303 (250-mA Load) Figure 4. 5VCC Power Up (3.3VAUX = 3.3 V) • DALLAS, TEXAS 75265 5 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 TYPICAL CHARACTERISTICS 3.3VAUX (Offset = 3.3 V) 5VCC (Offset = 4.3 V) 5VAUX (Offset = 4.5 V) 3.3VOUT (Offset = 3.3 V) (250-mA Load) Figure 5. 5VAUX Power Up (3.3VAUX = 3.3 V) (250-mA Load) Figure 6. 5VCC Power Down (3.3VAUX = 3.3 V) Sample Trig? 3.3VOUT (Offset = 3.3 V) (250-mA Load) 5VAUX (Offset = 5 V) 3.3VOUT (Offset = 3.3 V) 250-mA to 20-mA Step Load 5VCC (Offset = 4.5 V) Figure 7. 5VCC Power Down (5VAUX = 5 V) 6 POST OFFICE BOX 655303 Figure 8. 5VCC Load Transient Response Falling • DALLAS, TEXAS 75265 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 TYPICAL CHARACTERISTICS Sample Trig? 3.3VOUT (Offset = 3.3 V) 20-mA to 250-mA Step Load Figure 9. 5VCC Load Transient Response Rising 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 8-pin SO package with standard lead frame with a dedicated ground terminal. Hence, the 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)/176 = 0.45 W when using a low-K PCB. PJ = (150 – 70)/98 = 0.81 W when using a high-K PCB. Worst case maximum power dissipation is determined by: PD = (5.5 – 3) × 0.25 = 0.625 W Normal operating maximum power dissipation is (see Figure 10): PD = (5 – 3.3) × 0.25 = 0.425 W POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 THERMAL INFORMATION Power Dissipation Derate Curve Using High-K PCB 1.275 Power – W Power Dissipation Derate Curve Using Low-K PCB 0.71 0.625 0.425 25 39 75 89 108 150 Ambient Temperature – °C NOTE: These curves are to be used for guideline purposes only. For a particular application, a more specific thermal characterization is required. Figure 10. Power Dissipation Derating Curves APPLICATION INFORMATION 1 4.7 µF NC 8 0.1 µF 2 4.7 µF 5VAUX 0.1 µF 5VCC GND 7 TPPM0303 3 6 3.3VOUT NC 3.3VAUX NC 4.7 µF 4 4.7 µF 5 0.1 µF Figure 11. Typical Application Schematic 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 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 9 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TPPM0303D ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TPPM0303 Samples TPPM0303DR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TPPM0303 Samples (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of