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PT8105N Datasheet(PDF) 5 Page - Texas Instruments |
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PT8105N Datasheet(HTML) 5 Page - Texas Instruments |
5 / 14 page For technical support and more information, see inside back cover or visit www.ti.com 5 PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator PT8103/5 Specifications (Unless otherwise stated Ta =25°C, C1 =1,500µF, C2 =660µF, Vin =3.3V, & Io = 40A ) PT8103/5, Vin =3.3V Characteristics Symbols Conditions Min Typ Max Units Output Current Io 25°C, natural convection 0.1 (1) —39 A 60°C with 200LFM airflow 0.1 (1) —40 Input Voltage Range Vin Over Io Range 3.1 — 3.6 V Set-Point Voltage Tolerance Vo tol Over Vo range — ±1 ±2 %V Line Regulation ∆Regline Over Vin range — ±5 — mV Load Regulation ∆Regload Over Io range — ±5 — mV Temperature Variation ∆Regtemp –40°C ≤Ta ≤85°C — ±0.5 — %Vo Total Output Voltage Variation ∆Votot Includes set-point, line, load, — — ±3 %V –40°C ≤Ta ≤ 85°C Efficiency η Io =20 Vo =1.8V — 90 — Vo =1.5V — 89 — % Vo =1.2V — 87 — Vo =0.8V — 84 — Io =40 Vo =1.8V — 86 — Vo =1.5V — 84 — % Vo =1.2V — 82 — Vo =0.8V — 78 — Vo Ripple (pk-pk) Vr 20MHz bandwidth — 25 — mV Transient Response (Vo =1.2V) ttr 1A/µs load step, 50% to 100% Iomax — 25 — µSec ∆Vtr Vo over/undershoot — 30 — mV Short Circuit Threshold Iosc — 60 — A Switching Frequency ƒo Over load range 300 350 400 kHz Standby Control (pin 6) Input High Voltage VIH Referenced to GND (pins 17–22) — — Open (2) V Input Low Voltage VIL -0.2 — 0.8 Input Low Current IIL Pin 6 to GND — 0.5 — mA Standby Input Current Iin standby Pin 6 to GND — 35 — mA External Output Capacitance C2 See application schematic 660 (5) — 15,000 µF External Input Capacitance C1 See application schematic 1,500 — — µF Operating Temperature Range Ta Over Vin Range –40 (3) —+85 (4) °C Storage Temperature Ts — -40 — +125 °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture — 500 — G’s Mechanical Vibration Mil-STD-883D, Method 2007.2 Vertical — 20 (6) — G’s 20-2000 Hz, soldered in PCB Horizontal — 20 (6) Weight — Vertical/Horizontal — 55 — grams Flammability — Materials meet UL 94V-0 Notes: (1) ISR-will operate down to no load with reduced specifications. (2) The Standby input (pin 6) has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A low-leakage MOSFET is recommended to control this input. The open-circuit voltage is nominally 5V. See application notes for interface considerations. (3) For operation below 0°C, Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (4) See safe Operating Area curves or consult factory for the appropriate derating. (5) The PT8100 regulators require a minimum of 660µF, low ESR ouput capacitance (1,200µF for standard aluminum electrolytic) for proper operation. (6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing. Input Filter: The filter components L1 and C3 are optional for most applications. The inductor must be rated to handle the projected input current. A rating of 30ADC is recommended. The input capacitance, C1 must be rated for a minimum of 1Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For more information refer to the application note on capacitor recommendations for this product. |
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