PTH08T261WAST

PTH08T260W, PTH08T261W SLTS272G – DECEMBER 2006 – REVISED AUGUST 2011 www.ti.com 3-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™ Check for Samples: PTH08T260W, PTH08T261W FEATURES 1 • • • • • • 2 • • • • • • • • Up to 3-A Output Current 4.5-V to 14-V Input Voltage Wide-Output Voltage Adjust (0.69 V to 5.5 V) ±1.5% Total Output Voltage Variation Efficiencies up to 95% Output Overcurrent Protection (Nonlatching, Auto-Reset) Operating Temperature: –40°C to 85°C Safety Agency Approvals – UL/IEC/CSA-C22.2 60950-1 Prebias Startup On/Off Inhibit Differential Output Voltage Remote Sense Adjustable Undervoltage Lockout Auto-Track™ Sequencing Ceramic Capacitor Version (PTH08T261W) • • • TurboTrans™ Technology Designed to meet Ultra-Fast Transient Requirements up to 300 A/µs SmartSync Technology APPLICATIONS • • • Complex Multi-Voltage Systems Microprocessors Bus Drivers DESCRIPTION The PTH08T260/261W is the higher input voltage (4.5V to 14V) version of the PTH04T260/261W (2.2V to 5.5V), 3-A rated, non-isolated power module. This regulator represents the 2nd generation of the PTH series of power modules which include a reduced footprint and improved features. The PTH08T261W is optimized to be used in applications requiring all ceramic capacitors. Operating from an input voltage range of 4.5V to 14V, the PTH08T260/261W requires a single resistor to set the output voltage to any value over the range, 0.69V to 5.5V. The wide input voltage range makes the PTH08T260/261W particularly suitable for advanced computing and server applications that use a loosely regulated 8-V to 12-V intermediate distribution bus. Additionally, the wide input voltage range increases design flexibility by supporting operation with tightly regulated 5-V, 8-V, or 12-V intermediate bus architectures. The module incorporates a comprehensive list of features. Output over-current and over-temperature shutdown protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable under-voltage lockout allows the turn-on voltage threshold to be customized. Auto-Track™ sequencing is a popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a power system. The PTH08T260/261W includes new patent pending technologies, TurboTrans™ and SmartSync. The TurboTrans feature optimizes the transient response of the regulator while simultaneously reducing the quantity of external output capacitors required to meet a target voltage deviation specification. Additionally, for a target output capacitor bank, TurboTrans can be used to significantly improve the regulator's transient response by reducing the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple modules, thus simplifying EMI noise suppression tasks and reduces input capacitor RMS current requirements. Double-sided surface mount construction provides a low profile and compact footprint. Package options include both through-hole and surface mount configurations that are lead (Pb) - free and RoHS compatible. 1 2 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. TurboTrans, Auto-Track, TMS320 are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006–2011, Texas Instruments Incorporated PTH08T260W, PTH08T261W SLTS272G – DECEMBER 2006 – REVISED AUGUST 2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PTH08T260W SmartSync TurboTrans Auto−Track 9 VI 2 Track 1 8 TT +Sense SYNC VI Vo PTH08T260W Inhibit 10 INH/UVLO + CI 330 µF (Required) (Notes B and C) −Sense GND VOAdj 3 7 5 RTT 1% 0.05 W (Optional) +Sense VO 4 6 [D] CO1 + 100 µF Ceramic (Required) RSET 1% 0.05 W (Required) CO2 100 µF (Required) −Sense GND 2 GND A. RSET required to set the output voltage to a value higher than 0.69 V. See the Electrical Characteristics table. B. An additional 22-μF ceramic input capacitor is recommended to reduce RMS ripple current. C. For VI greater than 8V, the minimum required CI may be reduced to 220 μF plus a 22-μF ceramic capacitor. D. 100 μF of output capacitance can be achieved by using two 47-μF ceramic capacitors . Submit Documentation Feedback L O A D Copyright © 2006–2011, Texas Instruments Incorporated Product Folder Link(s): PTH08T260W PTH08T261W PTH08T260W, PTH08T261W SLTS272G – DECEMBER 2006 – REVISED AUGUST 2011 www.ti.com PTH08T261W - Ceramic Capacitor Version SmartSync TurboTrans Auto−Track 9 VI Track 2 8 1 TT +Sense SYNC VI Vo PTH08T261W Inhibit 10 INH/UVLO −Sense GND CI 300 µF (Required) 3 GND 5 RTT 1% 0.05 W (Optional) +Sense 4 VO 6 L O A D [B] CO 200 µF Ceramic (Required) VOAdj 7 RSET 1% 0.05 W (Required) (Note A) −Sense GND A. RSET required to set the output voltage to a value higher than 0.69 V. See the Electrical Characteristics table. B. 200 μF of output capacitance can be achieved by using two 100-μF ceramic capacitors or four 47-μF ceramic capacitors. C. 300 µF of ceramic or 330 µF of electrolytic input capacitance is required for proper operation. D. For VI greater than 8 V, the minimum required CI may be reduced to 200 µF ceramic or 220 μF electrolytic plus a 22-μF ceramic capacitor. Copyright © 2006–2011, Texas Instruments Incorporated Product Folder Link(s): PTH08T260W PTH08T261W Submit Documentation Feedback 3 PTH08T260W, PTH08T261W SLTS272G – DECEMBER 2006 – REVISED AUGUST 2011 www.ti.com ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI website at www.ti.com. DATASHEET TABLE OF CONTENTS DATASHEET SECTION PAGE NUMBER ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS 3 ELECTRICAL CHARACTERISTICS TABLE (PTH08T260W) 4 ELECTRICAL CHARACTERISTICS TABLE (PTH08T261W) 6 PIN-OUT AND TERMINAL FUNCTIONS 8 TYPICAL CHARACTERISTICS (VI = 12V) 9 TYPICAL CHARACTERISTICS (VI = 5V) 10 ADJUSTING THE OUTPUT VOLTAGE 11 CAPACITOR RECOMMENDATIONS 13 TURBOTRANS™ INFORMATION 17 UNDERVOLTAGE LOCKOUT (UVLO) 22 SOFT-START POWER-UP 23 OVER-CURRENT PROTECTION 23 OVER-TEMPERATURE PROTECTION 23 OUTPUT ON/OFF INHIBIT 24 REMOTE SENSE 24 SYCHRONIZATION (SMARTSYNC) 25 AUTO-TRACK SEQUENCING 26 PREBIAS START-UP 29 TAPE & REEL AND TRAY DRAWINGS 31 ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS (Voltages are with respect to GND) UNIT VTrack Track pin voltage –0.3 to VI + 0.3 V VSYNC SYNC pin voltage –0.3 to 6.0 V TA Operating temperature range Over VI range –40 to 85 Twave Wave soldering temperature Surface temperature of module body or pins (5 seconds maximum) Treflow Solder reflow temperature Surface temperature of module body or pins Tstg Storage temperature Storage temperature of module removed from shipping package Tpkg Packaging temperature Shipping Tray or Tape and Reel storage or bake temperature 45 Mechanical shock Per Mil-STD-883D, Method 2002.3, 1 msec, 1/2 sine, mounted 500 Mechanical vibration Mil-STD-883D, Method 2007.2, 20-2000 Hz (1) 4 260 AS suffix 235 (1) AZ suffix 260 (1) °C –55 to 125 Suffix AD 20 Suffix AS and AZ 15 Weight Flammability AD suffix 2.5 G grams Meets UL94V-O During reflow of surface mount package version do not elevate peak temperature of the module, pins or internal components above the stated maximum. Submit Documentation Feedback Copyright © 2006–2011, Texas Instruments Incorporated Product Folder Link(s): PTH08T260W PTH08T261W PTH08T260W, PTH08T261W SLTS272G – DECEMBER 2006 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS TA =25°C, VI = 5V, VO = 3.3V, CI = 330µF, CO1 = 100µF ceramic, CO2 = 100µF, IO = IOmax (unless otherwise stated) PARAMETER TEST CONDITIONS PTH08T260W MIN IO Output current Over VO range 25°C, natural convection 0.69 ≤ VO ≤ 1.2 VI Input voltage range Output adjust range Over IO range TYP 3 4.5 14 4.5 14 3.6 < VO ≤ 5.5 VO +1 (2) 14 Over IO range 0.69 5.5 ±1.0 ±0.25 %Vo Over VI range ±3 mV Load regulation Over IO range ±2 Includes set-point, line, load, –40°C ≤ TA ≤ 85°C IO = 3 A ±1.5 RSET = 169 Ω, VI = 8.0 V, VO = 5.0V 95% RSET = 1.21 kΩ, VO = 3.3 V 92% RSET = 2.37 kΩ, VO = 2.5 V 90% RSET = 4.75 kΩ, VO = 1.8 V 88% RSET = 6.98 kΩ, VO = 1.5 V 87% RSET = 12.1 kΩ, VO = 1.2 V 85% RSET = 20.5 kΩ, VO = 1.0 V 83% RSET = 681 kΩ, VO = 0.7 V 79% 1 (1) Overcurrent threshold Reset, followed by auto-recovery 5.5 A µSec 2.5 A/µs load step 50% to 100% IOmax VI = 12 V VO = 3.3 V Track input current (pin 9) Pin to GND Track slew rate capability CO ≤ CO (max) UVLOADJ Adjustable Under-voltage lockout (pin 10) Recovery Time 60 VO Overshoot 55 mV w/o TurboTrans (4) CO1 = 100 μF, ceramic CO2 = 660 μF, Type B Recovery Time 70 µSec VO Overshoot 37 mV with TurboTrans CO1 = 100 μF, ceramic CO2 = 660 μF, Type B RTT = 3.4 kΩ Recovery Time 110 µSec VO Overshoot 20 mV -130 VI decreasing, RUVLO = OPEN 4.3 3.7 Hysteresis, RUVLO ≤ 52.3 kΩ Input low voltage (VIL) Input low current (IIL), Pin 10 to GND Iin Input standby current Inhibit (pin 10) to GND, Track (pin 9) open fs Switching frequency Over VI and IO ranges, SmartSync (pin 1) to GND (5) µA 1 V/ms 4.45 4.2 V 0.5 Open (6) Input high voltage (VIH) Inhibit control (pin 10) %VO w/o TurboTrans CO1 = 100 μF, ceramic CO2 = 100µF, Type B VI increasing, RUVLO = OPEN (6) %VO 20-MHz bandwidth dVtrack/dt (4) (5) mV (3) VO Ripple (peak-to-peak) IIL (2) (3) V %Vo –40°C < TA < 85°C Transient response (1) (3) V Line regulaltion Efficiency ILIM A Temperature variation Total output variation η UNIT (1) 1.2 < VO ≤ 3.6 Set-point voltage tolerance VO MAX 0 -0.2 0.6 V 235 µA 5 mA 300 kHz For output voltages ≤ 1.2 V, at nominal operating frequency, the output ripple may increase (typically 2×) when operating at input voltages greater than (VO × 11). When using the SmartSync feature to adjust the switching frequency, see the SmartSync Considerations section of the datasheet for further guidance. The minimum input voltage is 4.5V or (VO+1)V, whichever is greater. Additional input capacitance may be required when VI < (VO+2)V. The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a tolerance of 1% with 100 ppm/°C or better temperature stability. Without TurboTrans, the minimum ESR limit of 7 mΩ must not be violated. A low-leakage (