PTH12000 Series —12-V Input 6-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module SLTS202A – MAY 2003 – REVISED MAY 2003 Features NOMINAL SIZE = 0.75 in x 0.5 in (19,05 mm x 12,7 mm) • Up to 6-A Output Current • 12-V Input Voltage • Wide-Output Voltage Adjust (1.2 V to 5.5 V) • Efficiencies up to 92 % • 230 W/in³ Power Density • On/Off Inhibit • Under-Voltage Lockout • Output Over-Current Protection (Non-Latching, Auto-Reset) • Surface Mountable • Operating Temp: –40 to +85 °C • DSP Compatible Output Voltages • IPC Lead Free 2 Pin Configuration The PTH12000 series of non-isolated power modules are small in size and high on performance. Using double-sided surface mount construction and synchronous rectification technology, these regulators deliver up to 6 A of output current while occupying a PCB area of about half the size of a standard postage stamp. They are an ideal choice for applications where space, performance and cost are important design constraints. The series operates from an input voltage of 12 V to provide step-down power conversion to any output voltage over the range, 1.2 V to 5.5 V. The output voltage of the PTH12000W is set within this range using a single resistor. Operating features include an on/off inhibit, output voltage adjust (trim), and output over-current protection. Target applications include telecom, industrial, and general purpose circuits, including low-power dual-voltage systems that use a DSP, microprocessor, or ASIC. Package options include both throughhole and surface mount configurations. Pin 1 2 3 4 5 Function GND Vin Inhibit * Vo Adjust Vout * Denotes negative logic: Open = Output On Ground = Output Off Standard Application VIN 1 2 Inhibit PTH12000W (Top View) 3 4 + CIN 100 µF (Required) VOUT 5 GND COUT 100 µF (Optional) + ADVANCE INFORMATION Description RSET 0.5 %, 0.1 W (Required) GND Rset = Resistor to set the desired output voltage (see spec. table for values) Cin = Required electrolytic 100 µF Cout = Recommended 100 µF electrolytic For technical support and more information, see inside back cover or visit www.ti.com PTH12000 Series —12-V Input 6-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module SLTS202A – MAY 2003 – REVISED MAY 2003 Ordering Information Output Voltage (PTH12000Hxx) Package Options (PTH12000xHH) (1) Code W Code Voltage 1.2 V – 5.5 V (Adjust) AH AS Description Pkg Ref. Horiz. T/H SMD, Standard (3) (2) (EUS) (EUT) Notes: (1) Add “T” to end of part number for tape and reel on SMD packages only. (2) Reference the applicable package reference drawing for the dimensions and PC board layout (3) “Standard” option specifies 63/37, Sn/Pb pin solder material. Pin Descriptions Vin: The positive input voltage power node to the module, which is referenced to common GND. Vout: The regulated positive power output with respect to the GND node. Inhibit: The Inhibit pin is an open-collector/drain negative logic input that is referenced to GND. Applying a lowlevel ground signal to this input disables the module’s output and turns off the output voltage. When the Inhibit control is active, the input current drawn by the regulator is significantly reduced. If the Inhibit pin is left opencircuit, the module will produce an output whenever a valid input source is applied. Rset = 10 k · 0.8 V Vout – 1.2 V – 1.82 k The specification table gives the preferred resistor values for a number of standard output voltages. For technical support and more information, see inside back cover or visit www.ti.com ADVANCE INFORMATION GND: This is the common ground connection for the ‘Vin’ and ‘Vout’ power connections. It is also the 0 VDC reference for the ‘Inhibit’ and ‘Vo Adjust’ control inputs. Vo Adjust: A 0.5 %, 0.1 W resistor must be connected between this pin and the GND pin to set the output voltage to the desired value. The set point range for the output voltage is from 1.2 V to 5.5 V. The resistor required for a given output voltage may be calculated from the following formula. If left open circuit, the module output will default to its lowest output voltage value. For further information on the adjustment and/or trimming of the output voltage, consult the related application note. PTH12000 Series —12-V Input 6-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module SLTS202A – MAY 2003 – REVISED MAY 2003 Environmental & Absolute Maximum Ratings (Voltages are with respect to GND) Characteristics Symbols Conditions Min Typ Max Units Operating Temperature Range Solder Reflow Temperature Storage Temperature Mechanical Shock Ta Treflow Ts Over Vin Range Surface temperature of module body or pins — Per Mil-STD-883D, Method 2002.3 1 msec, ½ sine, mounted Mil-STD-883D, Method 2007.2 20-2000 Hz –40 (i) — –40 — +85 215 (ii) +125 °C °C °C — TBD — G’s — TBD — G’s — 2 — grams Mechanical Vibration Weight Flammability — — Meets UL 94V-O Notes: (i) For operation below 0 °C the external capacitors must have stable characteristics. Use either a low ESR tantalum or Oscon® capacitor. (ii) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum. For further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products.” ADVANCE INFORMATION Electrical Specifications Unless otherwise stated, T a =25 °C, V in =12 V, Vout =3.3 V, C in =100 µF, Cout =0 µF, and Io =Iomax PTH12000W Typ Characteristics Symbols Conditions Min Max Units Output Current Io Input Voltage Range Set-Point Voltage Tolerance Temperature Variation Line Regulation Load Regulation Total Output Variation Vin Vo tol ∆Regtemp ∆Regline ∆Regload ∆Regtot Ta =60 °C, 200 LFM Ta =25 °C, natural convection Over Io range 0 0 10.8 — — — — — — — — ±0.5 ±5 ±5 6 (1) 6 (1) 13.2 ±2 — — — V %Vo %Vo mV mV — — ±3 %Vo Efficiency η — — — — — — — — — 92 90 88 87 86 84 82 50 30 — — — — — — — — — — — — — 8.8 70 100 12 — — — — — 10.4 — µSec mV A — — –240 1 350 — 100 (4) Open (2) 0.5 — — — — TBD V Pin 3 to GND pins 1 & 3 connected Over Vin and Io ranges Vin –0.5 –0.2 — — — 100 (3) 0 µA mA kHz µF µF Per Bellcore TR-332 50 % stress, Ta =40 °C, ground benign 10 — — 106 Hrs Vo Ripple (pk-pk) Vr Transient Response Over-Current Threshold Under-Voltage Lockout ttr ∆Vtr Io trip UVLO Inhibit Control (pin 3) Input High Voltage Input Low Voltage Input Low Current VIH VIL IIL Standby Input Current Switching Frequency External Input Capacitance External Output Capacitance Reliability Iin standby ƒs Cin Cout MTBF –40 °C <Ta < +85 °C Over Vin range Over Io range Includes set-point, line, load, –40 °C ≤ T a ≤ +85 °C RSET = 280 Ω Vo = 5.0 V Vin =12 V, Io =4 A RSET = 2.0 kΩ Vo = 3.3 V RSET = 4.32 kΩ Vo = 2.5 V RSET = 8.06 kΩ Vo = 2.0 V RSET = 11.5 kΩ Vo = 1.8 V RSET = 24.3 kΩ Vo = 1.5 V RSET = open cct Vo = 1.2 V 20 MHz bandwidth, Io =4 A Vo ≥ 3.3 V Vo ≤ 2.5 V 1 A/µs load step, 50 to 100 % Iomax, Vo =1.8 V, Cout =100 µF Recovery time Vo over/undershoot Reset followed by auto-recovery Vin increasing Vin decreasing Referenced to GND A % mVpp V Notes: (1) See SOA curves or consult factory for appropriate derating. (2) The Inhibit control (pin 3) has an internal pull-up to Vin, and if left open-circuit the module will operate when input power is applied. A small lowleakage (<100 nA) MOSFET is recommended to control this input. See application notes for more information. (3) The regulator requires a minimum of 100 µF input capacitor with a minimum 750 mArms ripple current rating. For further information, consult the related application note on Capacitor Recommendations. (4) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response. For technical support and more information, see inside back cover or visit www.ti.com PTH12000 Series —12-V Input Typical Characteristics 6-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module Characteristic Data; Vin =12 V SLTS202A – MAY 2003 – REVISED MAY 2003 Safe Operating Area; Vin =12 V (See Note A) Efficiency vs Output Current (See Note B) Output Voltage =5 V 100 90 Efficiency - % VOUT 5.0 V 80 3.3 V 2.5 V 70 1.8 V 1.2 V 60 Ambient Temperature (°C) 80 90 Airflow 70 400LFM 60 200LFM 100LFM Nat conv 50 40 30 50 20 0 1 2 3 4 5 6 0 1 2 Iout - Amps 4 5 6 Output Voltage =3.3 V Power Dissipation vs Output Current 90 3.0 2.0 5.0 V 3.3 V 1.5 2.5 V 1.8 V 1.0 1.2 V 0.5 Airflow 70 400LFM 200LFM 100LFM Nat conv 60 50 40 30 0.0 0 1 2 3 4 5 20 6 0 1 2 Iout - Amps 3 4 5 6 Iout (A) Output Voltage =1.8 V 90 Ambient Temperature (°C) 80 70 Airflow 60 100LFM Nat conv 50 40 30 20 0 1 2 3 4 5 6 Iout (A) The products listed hereunder are prototype or pre-production devices which have not been fully qualified to Texas Instrument’s specifications. Product specifications are subject to change without notice. Texas Instruments makes no warranty, either expressed, implied, or statutory, including implied warranty of merchantability or fitness for a specific purpose, of these products. Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures. Derating limits apply to modules soldered directly to a 4 in. × 4 in. double-sided PCB with 1 oz. copper. For technical support and more information, see inside back cover or visit www.ti.com ADVANCE INFORMATION VOUT Ambient Temperature (°C) 80 2.5 Pd - Watts 3 Iout (A) Application Notes PTH12000 Series Capacitor Recommendations for the PTH12000 6-A Kestrel Regulator Series Input Capacitors The recommended input capacitance is determined by 750 mA (rms) minimum ripple current rating, less than 150 mΩ equivalent series resistance (ESR) and 100 µF minimum capacitance. The ripple current rating, ESR, and operating temperature are the major considerations when selecting the input capacitor. Tantalum/ Ceramic Capacitors Tantalum capacitors are acceptable on the output bus. Either tantalum or Os-con® capacitor types are recommended for applications where ambient temperatures fall below 0 °C. Electrolytic capacitors may be substituted with ceramic types with the minimum capacitance on the input bus. It is recommended that tantalum capacitors have a minimum voltage rating of at least twice the working voltage, including the ac ripple. This is necessary to insure reliability with 12-V input voltage bus applications. Only one tantalum capacitor (68 µF, 25 V) was found to meet this requirement. Capacitor Table Table 2-1 identifies capacitors with acceptable ESR and maximum allowable ripple current (rms) ratings. Capacitors recommended for the output are identified under the Output Bus column with the required quantity. This is not an extensive capacitor list. Capacitors from other vendors are available with comparable specifications. Those listed are for guidance. The RMS ripple current rating and ESR (at 100 kHz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. Output Capacitors (Optional) The ESR of the required capacitor can be less than, or equal to 150 mΩ. Electrolytic capacitors have poor ripple performance at frequencies greater than 400 kHz but excellent low frequency transient response. Above the ripple frequency, ceramic decoupling capacitors are necessary to improve the transient response and reduce any high frequency noise components apparent during higher current excursions. Preferred low ESR type capacitor’s part numbers are identified in the capacitor table. Table 2-1 Recommended Input/Output Capacitors Capacitor Vendor/ Component Series Capacitor Characteristics Quantity Working Voltage Value (µF) (ESR) Equivalent Series Resistance 85 °C Maximum Ripple Current (Irms) Physical Size (mm) Input Bus Output Bus 25 V 35 V 35 V 330 µF 180 µF 220 µF 0.090 Ω 0.090 Ω 0.090 Ω 755 mA 755 mA 755 mA 10×12.5 10×12.5 10×12.5 1 1 1 1 1 1 EEUFC1E331 EEUFC1V181 EEUFC1V221 United Chemi-con PXA FP FS LXZ 16 V 20 V 20 V 35 V 150 µF 120 µF 100 µF 220 µF 0.026 Ω 0.024 Ω 0.030 Ω 0.090 Ω 3430 mA 3100 mA 2740 mA 760 mA 10×7.7 8×10.5 8×10.5 10×12.5 1 1 1 1 1 1 1 1 PXA16VC151MJ80TP 20FP120MG 20FS100M LXZ35VB221M10X12LL Nichicon NX (Surface Mt) NA PM 16 V 20 V 35 V 150 µF 100 µF 220 µF 0.026 Ω 0.025 Ω 0.090 Ω 3450 mA 3700 mA 770 mA 10×8 10×10 10×15 1 1 1 1 1 1 PNX1C151MCR1GS PNA1D101M1 UPM1V221MHH6 Panasonic FK (Surface Mt) 25 V 35 V 470 µF 330 µF 0.080 Ω 0.080 Ω 850 mA 850 mA 10×10.2 10×10.2 1 1 1 1 EEVFK1E471P EEVFK1V331P Os-con SVP (Surface Mt) SP SS 20 V 20 V 20 V 100 µF 120 µF 100 µF 0.024 Ω 0.024 Ω 0.030 Ω >3300 mA >3100 mA >2700 mA 8×12 8×10.5 8×10.5 1 1 1 1 1 1 20SVP100M 20SP120M 20SS100M AVX Tantalum TPS 10 V 10 V 25 V 100 µF 220 µF 68 µF 0.100 Ω 0.100 Ω 0.095÷2 Ω >1090 mA >1414 mA >1451 mA 7.3L ×4.3W ×4.1H N/R N/R 2 1 1 1 TPSD107M010R0100 TPSV227M010R0100 TPSV686M025R0095 Kemet T520/T495 10 V 10 V 100 µF 100 µF 0.080 Ω 0.100 Ω 1200 mA >1100 mA 7.3L×5.7W ×4.0H N/R N/R 1 1 T520D107M010AS T495X107M010AS Sprague 594D 10 V 25 V 150 µF 68 µF 0.090 Ω 0.095 Ω 1100 mA 1600 mA 7.3L ×6.0W ×4.1H N/R 2 1 1 594D157X0010C2T 594D686X0025R2T Panasonic FC N/R Not recommended. 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