PT3300 TI1 | Alldatasheet

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For assistance or to order, call (800) 531-5782 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com20 Application Notes Mechanical Outline Product Selector Guide Revised 5/15/9830 WATT POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR PT3300 Series Standard Application Cin = Optional 100µF/100V electrolytic Cout = Required 330µF electrolytic Note: Pins 4,5,6 and pins 10,11,12,13 are connected internally.

Ordering Information

PT3301o = +3.3 Volts PT3302o = +5.0 Volts PT3303o = +12.0 Volts PT3304o = +15.0 Volts PT3300 7-9 4-6 14-17 VIN VINGND VO C OUT +C IN

19 REMOTE SENSE

  • 30W Output Power
  • Input Voltage Range: 20V to 60V
  • High Efficiency
  • Vo Inhibit
  • Vo Adjust
  • Remote Sense
  • Current Limit
  • Short-Circuit Protection
  • Over-T emperature Shutdown
  • 19-pin SIP Package FeaturesPin-Out Information Pin Function

1 Do Not Use

2 Inhibit

10 V o GND

11 V o GND

12 V o GND

13 V o GND

14 V o

15 V o

16 V o

17 V o

18 Do Not Use

The PT3300 is a new series of high- input voltage, 30 Watt, non-isolated Integrated Switching Regulators (ISRs) housed in a 19-pin SIP package. The 20 to 60 V input range allows easy integra- tion into many distributed power applications which utilize 24, 28, or 48V bus architechures. The PT3300 series is available with 3.3, 5, 12, or 15V outputs. The output voltage is adjustable from 90 to 110% of nominal with the addition of an external resistor. Other easy to use features include an inhibit function and remote sense which automatically compensates for any voltage drop from the ISR to the load. As with other Power T rends’ products, the PT3300 includes built in current limit, short circuit protection and over-tempera- ture shutdown. The PT3300 requires a 330µF output capacitor for proper operation. (For dimensions and PC board layout, see Package Styles 820 and 830.) PT Series Suffix (PT1234X) Case/Pin Configuration Vertical Through-Hole N Horizontal Through-Hole A Horizontal Surface Mount C Specifications Characteristics PT3300 SERIES (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current I o Over Vin range V o = +3.3V 0.50* — 8.0 A Short Circuit Current I sc Vin = +25V — 2 ·Imax —— Input Voltage Range V in 0.5 £ Io £ Imax 20 — 60 V Output Voltage T olerance D Vo Over Vin range, Io = Imax —± 1± 3% V o0°C £ Ta £ +60°C Line Regulation Reg line Over Vin range — ±0.5 ±1 %V o Load Regulation Reg load 0.5 £ Io £ Imax — ±0.5 ±1 %V o Vo Adjust Range V o adj Over Vin and Io ranges 90 — 110 %V o Vo Ripple/Noise V n Vin = +24V , Io = Imax — 23% V o T ransient Response t tr 25% load change — 100 250 µSec with Cout = 330µF V os Vo over/undershoot — 2 5 %V o Efficiency h Vin = +24V , Io = 0.5·Imax Vo = +3.3V — 80 — % Switching Frequency ƒ o Over Vin and Io ranges 600 750 900 kHz Absolute Maximum T a -20 — +85 °COperating T emperature Range Recommended Operating T a Free air convection -20 — +65** °CT emperature Range Over V in and Io ranges Storage T emperature T s — -40 — +125 °C Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s Mechanical Vibration — Per Mil-STD-883D, Method 2007.2, —1 0 — G’s20-2000 Hz, soldered in a PC board Weight — — — 35 — grams *ISR will operate down to no load with reduced specifications. ** See Thermal Derating Curve Note: The PT3300 Series requires a 330µF electrolytic or tantalum output capacitor for proper operation in all applications.

For assistance or to order, call (800) 531-5782 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 21 Wide Input Range Products DATA SHEETS CHARACTERISTIC DATA PT3301, 3.3 VDC (See Note 1) PT3302, 5.0 VDC (See Note 1) Efficiency vs Output Current Efficiency vs Output Current Ripple vs Output Current Ripple vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current Efficiency % Output Current (Amps) Ripple (mV) Output Current (Amps) Efficiency % Output Current (Amps) Ripple (mV) Output Current (Amps) Output Current (Amps) Pd (Watts) Pd (Watts) Output Current (Amps) Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC converter. Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.) PT3300 Series 100 012345678 20.0V 24.0V 30.0V 36.0V 48.0V 60.0V Vin 100 012345678 60.0V 48.0V 36.0V 30.0V 24.0V 20.0V Vin 01234567 60.0V 48.0V 36.0V 30.0V 24.0V 20.0V Vin 0.5 1.5 2.5 3.5 4.5 5.5 20 25 30 35 40 45 50 55 60 Thermal Derating (Ta) (See Note 2) Iout-(Amps) Vin-(Volts) 85°C 100 0123456 20.0V 24.0V 30.0V 36.0V 48.0V 60.0V Vin 0123456 60.0V 48.0V 36.0V 30.0V 24.0V 20.0V Vin 0123456 60.0V 48.0V 36.0V 30.0V 24.0V 20.0V Vin

For assistance or to order, call (800) 531-5782 3Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com More Applcation Notes pt5040 Adjusting the Output Voltage of the PT3300 Wide Input Range Switching Regulator The output voltage of the Power T rends PT3300 Series ISRs may be adjusted over a ±10% range from the factory trimmed pre-set voltage. This is accomplished with the addition of a single external resistor. T able 1 accordingly gives the allowable adjustment range for each model in the series as V a (min) and Va (max). Adjust Up: An increase in the output voltage is obtained by adding a resistor R2, between pin 3 (Vo adjust) and pins 10-13 (Vo GND) Adjust Down: Add a resistor (R1), between pin 3 (Vo adjust) and pins 14-17 (Vout). Refer to Figure 1 and T able 2 for both the placement and value of the required resistor, either (R1) or R2 as appropriate. Notes: 1. Use only a single 1% resistor in either the (R1) or R2 loca- tion. Place the resistor as close to the ISR as possible. 2. Never connect capacitors from V o adjust to either GND or Vout . Any capacitance added to the Vo adjust pin will affect the stability of the ISR. 3. V in GND and Vo GND are connected internally and may be treated as common on the PT3300 ISR series. 4. If the Remote Sense feature is being used, connecting the resistor (R1) between pin 3 (Vo adjust) and pin 19 (Remote Sense) can benifit load regulation. 5. Adjusting Vout higher than that defined for the model raises the minimum input voltage by the same percentage. Figure 1 The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulae. Ro (Vo – 1)(Va – 1)(R1) = (Vo – Va) - 0.48 k Ω Ro (Vo – 1)R2 = Va - Vo - 0.48 k Ω Where: V o = Original output voltage Va = Adjustd output voltage Ro = The value in T able 1 Table 2 PT3300 ADJUSTMENT RESISTOR VALUES Series Pt # PT3301 PT3302 PT3303 PT3304 Current 8Adc 6Adc 2.5Adc 2Adc Vo(nom) 3.3Vdc 5.0Vdc 12.0Vdc 15.0Vdc Va(req’d) 3.0 (363.0)kΩ 3.1 (572.0)kΩ 3.2 (1200.0)kΩ 3.3 3.4 545.0k Ω 3.5 272.0k Ω 3.6 181.0k Ω 4.5 (383.0)kΩ 4.6 (493.0)kΩ 4.7 (675.0)kΩ 4.8 (1040.0)kΩ 4.9 (2140.0)kΩ 5.0 5.1 548.0k Ω 5.2 274.0k Ω 5.3 182.0k Ω 5.4 137.0k Ω 5.5 109.0k Ω 10.8 (448.0)kΩ 11.0 (548.0)kΩ 11.2 (699.0)kΩ 11.4 (951.0)kΩ 11.6 (1450.0)kΩ 12.0 12.2 274.0k Ω 12.4 137.0k Ω 12.6 91.0k Ω 12.8 68.1k Ω 13.0 54.4k Ω 13.2 45.3k Ω 13.5 (425.0)kΩ 14.0 (664.0)kΩ 14.5 (1379.0)kΩ 15.0 15.5 102.0k Ω 16.0 50.6k Ω 16.5 33.6k Ω R1 = (Red) R2 = Black (R1) Adj Down Adjust Up C out 330 µ F V out COM V in COM C in 100 µ F, 100V (Optional) PT3300 34, 5, 6 7,8,9 Vin Vo Vin GND Vo (ad j)INH Vo (Sense ) 10 - 13 Vo GND 14 - 17 L O A D Table 1 PT3300 ADJUSTMENT AND FORMULA PARAMETERS Series Pt # PT3301 PT3302 PT3303 PT3304 Vo (nom) 3.3V 5.5V 12.0V 15.0V Va (min) 3.0V 4.5V 10.8V 13.5V Va (max) 3.6V 5.5V 13.2V 16.5Vs Ro (kΩΩΩΩΩ ) 23.7 13.7 4.99 3.65

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