PTH05050WAH

PTH05050W www.ti.com............................................................................................................................................................ SLTS213E – MAY 2003 – REVISED MARCH 2009 6-A, 5-V INPUT NON-ISOLATED WIDE OUTPUT ADJUST POWER MODULE FEATURES 1 • • • • • • • • • • • 2 • • • Up to 6-A Output Current 5-V Input Voltage Wide-Output Voltage Adjust (0.8 V to 3.6 V) Efficiencies up to 95% 135 W/in3 Power Density On/Off Inhibit Pre-Bias Startup Under-Voltage Lockout Operating Temperature –40°C to 85°C Auto-Track™ Sequencing Output Overcurrent Protection (Non-Latching, Auto-Reset) IPC Lead Free 2 Safety Agency Approvals: UL/IEC/CSA-22.2 60950-1 Point-of-Load Alliance (POLA) Compatible Nominal size = 0.87in × 0.5in (22.1mm × 12.57mm) DESCRIPTION The PTH05050W is one of the smallest non-isolated power modules from Texas Instruments that features Auto-Track™ sequencing. Auto-Track simplifies supply voltage sequencing in power systems by enabling modules to track each other, or any other external voltage, during power up and power down. Although small in size (0.87 in × 0.5 in), these modules are rated for up to 6 A of output current, and are an ideal choice in applications where space, performance, and a power-up sequencing capability are important attributes. The product provides high-performance step-down conversion from a 5-V input bus voltage. The output voltage of the PTH05050W can be set to any voltage over the range, 0.8 V to 3.6 V, using single resistor. Other operating features include an on/off inhibit, output voltage adjust (trim), and output over-current protection. For high efficiency these parts employ a synchronous rectifier output stage, but a pre-bias hold-off capability ensures that the output will not sink current during startup. Target applications include telecom, industrial, and general purpose circuits, including low-power dual-voltage systems that use a DSP, microprocessor, ASIC, or FPGA. Package options include both throughhole and surface mount configurations. 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. 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 © 2003–2009, Texas Instruments Incorporated PTH05050W SLTS213E – MAY 2003 – REVISED MARCH 2009............................................................................................................................................................ www.ti.com STANDARD APPLICATION Track 1 VOUT 6 1 2 VIN PTH05050W 3 4 5 + CO1 100 mF Electrolytic (Optional) + Inhibit CIN 100 mF (Required) CO2 10 mF Ceramic (Optional) RSET 1%, 0.1 W (Required) GND GND A. Resistor RSET is required to set the output voltage to a value higher than 0.8 V. See Specification Table for values. B. Capacitor CIN is required (100 µF). C. Capacitor CO1 is optional (100 µF). D. Capacitor CO2 is optional (10 µF). Ceramic capacitance can be added to reduce output ripple. ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com. ABSOLUTE MAXIMUM RATINGS voltages are with respect to GND UNIT Vtrack Track input voltage TA Operating temperature range Over VI range –0.3 V to VI +0.3 V Twave Wave solder 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°C Mechanical shock Per Mil-STD-883D, Method 2002.3, 1 msec, 1/2 Sine, mounted 500 G Mechanical vibration Mil-STD-883D, Method 2007.2, 20-2000 Hz 20 G –40°C to 85°C (1) Weight Flammability (1) (2) 2 AH & AD suffix AS suffix AZ suffix 260°C 235°C (2) 260°C (2) –55°C to 125°C 2.9 grams Meets UL94V-O For operation below 0°C the external capacitors must have stable characteristics. Use either a low ESR tantalum, OS-CON, or ceramic capacitor. During soldering of surface mount package versions, do not elevate peak temperature of the module, pins or internal components above the stated maximum. Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s) :PTH05050W PTH05050W www.ti.com............................................................................................................................................................ SLTS213E – MAY 2003 – REVISED MARCH 2009 ELECTRICAL CHARACTERISTICS TA = 25°C; VI = 5 V; VO = 3.3 V; CI = 100 µF, CO1 = 0 µF, CO2 = 0 µF, and Io = Iomax (unless otherwise stated) PARAMETER TEST CONDITIONS PTH05050W MIN TYP UNIT MAX 0 6 (1) A Over IO range 4.5 5.5 V Over IO range 0.8 3.6 IO Output current 0.8 V ≤ VO ≤ 3.6 V VI Input voltage range VOadj Output adjust range VOtol Set-point voltage tolerance ΔRegtemp Temperature variation –40°C < TA < 85°C ±0.5 %Vo ΔRegline Line regulation Over VI range ±10 mV ΔRegload Load regulation Over IO range ±12 ΔRegtot Total output variation Includes set-point, line, load, –40°C ≤ TA ≤ 85°C η Efficiency 85°C, natural convection ±2 (2) IO = 4 A RSET = 698 Ω, Vo = 3.3 V 95% 93% RSET = 4.12 kΩ, Vo = 2.0 V 91% RSET = 5.49 kΩ, Vo = 1.8 V 90% RSET = 8.87 kΩ, Vo = 1.5 V 89% RSET = 17.4 kΩ, Vo = 1.2 V 87% RSET = 36.5 kΩ, Vo = 1.0 V Vr Vo ripple (pk-pk) 20 MHz bandwidth, Co2 = 10 µF ceramic IOtrip Over-current threshold Reset, followed by auto-recovery Transient response 1 A/µs load step, 50 to 100% IOmax, CO1 = 100 µF ttr ΔVtr IILtrack Track input current (pin 2) Pin to GND dVtrack/dt Track slew rate capability CO ≤ CO(max) UVLO Under-voltage lockout VIH Inhibit Control (pin 4) IIL inhibit A Recovery time 70 µSec Vo over/undershoot 100 4.3 3.4 Switching frequency Over VI and IO ranges CI External input capacitance CO1, CO2 External output capacitance (1) (2) (3) (4) (5) (6) (7) (8) Reliability V/ms 4.45 550 0.6 Capacitance value Non-ceramic 0 Ceramic 0 4 Per Bellcore TR-332, 50% stress, TA = 40°C, ground benign V V 130 µA 10 mA 600 650 100 (6) 3300 (7) 100 (5) Equivalent series resistance (non-ceramic) MTBF µA 1 3.7 –0.2 Input low current, Pin 4 to GND fs (4) Open (4) Input low voltage, Referenced to GND Inhibit (pin 4) to GND, Track (pin 2) open mV –130 VI decreasing Input standby current mVpp 12 VI increasing Iin inh %Vo 85% 20 (3) Input high voltage, Referenced to GND VIL mV ±3 (2) RSET = 2.21 kΩ, Vo = 2.5 V V %Vo kHz µF 300 µF (8) mΩ 6 106 Hrs No derating is required when the module is soldered directly to a 4-layer PCB with 1 oz. copper. 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. The pk-pk output ripple voltage is measured with an external 10 µF ceramic capacitor. See the standard application schematic. This control pin has an internal pull-up to the input voltage. If it is left open-circuit the module will operate when input power is applied. A small, low leakage (