(800) 531-5782 For assistance or to order, call PT7602 Series Revised 11/10/98 3.3V INPUT 10A PROGRAMMABLE INTEGRATED SWITCHING REGULATOR The PT7602 is a new series of high-performance, 10A Integrated Switching Regulators (ISRs) housed in a 27-pin SIP package. The 10A capability allows easy integration of the latest high-speed, low-voltage µPs, DSPs, ASICs, and bus drivers into existing 3.3V systems. The output voltage of the PT7602 can be easily programmed with a 4 bit input compatible with Intel’s Pentium II Processor. A differential remote sense is also provided which automatically compensates for any voltage drop from the ISR to the load. Pin-Out Information Standard Application PROGRAMMING PINS VID0 VID1 VID2 VID3 REMOTE SENSE (+) 4 3 2 1 VIN L1 7 - 11 1µH CIN 26 PT7602 13 - 19 + 5 VOUT 20 - 25 12 COUT + LOAD GND GND STBY* Pin Function Pin Function Pin Function 1 VID0 10 Vin 19 GND 2 3 VID1 VID2 11 12 Vin Remote Sense Gnd 20 21 Vout Vout 4 5 VID3 13 14 GND GND 22 23 Vout Vout STBY* - Stand-by 6 7 Vin 15 16 GND GND 24 25 Vout Vout 8 9 Vin Vin 17 18 GND GND 26 27 Remote Sense Vout Do not connect Do not connect REMOTE SENSE (-) For STBY* pin; open = output enabled; ground = output disabled. Cin = Required 1000µF electrolytic Cout= Required 330µF electrolytic L1 = Optional 1µH input choke Specifications PT7602 SERIES Characteristics (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Ta = +60°C, 200 LFM, pkg N Ta = +25°C, natural convection 0.1 * 0.1 * — — 10 10 A A Input Voltage Range Vin 0.1A ≤ Io ≤ 10A 3.1** — 3.6 V Output Voltage Tolerance ∆Vo Vin = +3.3V, Io = 10A 0°C ≤ Ta ≤ +65°C Vo-0.03 — Vo+0.03 V Line Regulation Regline 3.1V ≤ Vin ≤ 3.6V, Io = 10A — ±10 — mV Load Regulation Reg load Vin = +3.3V, 0.1 ≤ Io ≤ 10A — ±10 — mV Vo Ripple/Noise Vn Vin = +3.3V, I o = 10A — 50 — mV Transient Response with Cout = 330µF t tr Vos Io step between 5A and 10A Vo over/undershoot — — 100 200 — — µSec mV Efficiency η Vin = +3.3V, I o = 7A — — 78 76 — — % % Switching Frequency ƒo 3.1V ≤ V in ≤ 3.6V 0.1A ≤ Io ≤ 10A 650 700 750 kHz Absolute Maximum Operating Temperature Range Ta — 0 — +85 °C Recommended Operating Temperature Range Ta Forced Air Flow = 200 LFM Over Vin and Io Ranges 0 — +65 °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 Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, Soldered in a PC board — 10 — G’s Vertical/Horizontal — 31/41 — grams Weight — Vo = 1.8V Vo = 1.5V * ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected. ** The minimum input voltage is 3.1V or Vout+1.2V, whichever is greater. Output Capacitors: The PT7602 series requires a minimum ouput capacitance of 330µF for proper operation. Do not use Oscon type capacitors. The maximum allowable output capacitance is 7,500µF. Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 10ADC with a typical value of 1µH. The input capacitance must be rated for a minimum of 1.0Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com Features Programming Information • +3.3V input • 4-bit Programmable: 1.3V to 2.05V@10A • High Efficiency • Input Voltage Range: 3.1V to 3.6V • Differential Remote Sense • 27-pin SIP Package VID3 VID2 VID1 VID0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 For assistance or to order, call (800) 531-5782 PT7602 Series Ordering Information PT7602❏ ❏ = 1.3 to 2.05 Volts Vout 1.30V 1.35V 1.40V 1.45V 1.50V 1.55V 1.60V 1.65V 1.70V 1.75V 1.80V 1.85V 1.90V 1.95V 2.00V (For dimensions and PC board layout, see Package Styles 800 and 810.) PT Series Suffix (PT1234X) Case/Pin Configuration Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount N A C Logic 0 = Pin 12 potential (remote sense gnd) Logic 1 = Open circuit (no pull-up resistors) VID3 may not be changed while the unit is operating. C H A R A C T E R I S T I C D A T A PT7602, Vo = 1.8 VDC (See Note 1) Efficiency vs Output Current 100 Efficiency (%) 90 80 70 60 50 40 0 2 4 6 8 10 6 8 10 Iout (A) Ripple vs Output Current 30 Ripple (mV) 25 20 15 10 5 0 0 2 4 Iout (A) Power Dissipation vs Output Current 8 7 PD (Watts) 6 5 4 3 2 1 0 0 2 4 6 8 10 Iout (A) Note 1: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. 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