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PT6700
kage ving Pac Space-Sa New
Series
13 AMP PROGRAMMABLE INTEGRATED SWITCHING REGULATOR
SLTS040 Revised 9/13/99
Patent pending on package assembly
The PT6700 is a new series of high-performance, 13 Amp Integrated Switching Regulators (ISRs) housed in a unique, space-saving 23-pin SIP package. The 13A capability allows easy integration of the latest highspeed, low-voltage Ps and bus drivers into existing 5V systems. The output voltage of the PT6700 can be programmed easily from 1.3V to 3.5V with a 5-bit input compatible
with Intel's Pentium II Processor. The PT6700 includes a differential remote sense which automatically compensates for any voltage drop from the ISR to the load. Also provided are internal short circuit protection, OVP drive and a power good output signal. When over-voltage is detected, the PT6700 provides drive for an external crowbar or other protection circuitry.
Standard Application
PROGRAMMING PINS
VID0 VID1 VID2 VID3 VID4 REMOTE SENSE (+)
76543 1 23
Pin-Out Information
OVP DRV
Pin Function
1 2 OVP Drive Pwr Good VID0 VID1 VID2 VID3 VID4 STBY*
Do not connect
Pin Function
13 14 15 16 17 18 19 20 21 22 23
Remote Sense Gnd
GND GND GND GND GND Vout Vout Vout Vout
Remote Sense Vout
VIN
L1
10 - 12
1H R1 CIN PWR GOOD GND STBY* +
PT6700
2 14 - 18 8 13
19 - 22
VOUT
3 4
LOAD
COUT
+
5 6 7 8 9 10 11 12
GND
REMOTE SENSE (-)
Specifications
Cin = Required 1000F electrolytic Cout= Required 330F electrolytic L1 = Optional 1H input choke R1 = Required 10k pull-up when using Pwr Good signal. Pwr good output is high when the output voltage is within specification.
Vin Vin Vin
For STBY* pin open = output enabled ground = output disabled.
Characteristics (Ta = 25C unless noted) Output Current Input Voltage Range Output Voltage Tolerance Line Regulation Load Regulation Vo Ripple/Noise Transient Response with Cout = 330F Efficiency
PT6700 SERIES
Symbols Io Vin Vo Regline Regload Vn ttr Vos Conditions Ta = +60C, 200 LFM, pkg N Ta = +25C, natural convection 0.1A Io 13A Vin = +5V, Io = 13A -40C Ta +65C 4.5V Vin 5.5V, Io = 13A Vin = +5V, 0.1 Io 13A Vin = +5V, I o = 13A Io step between 6A and 12A Vo over/undershoot Vin = +5V, Io = 8A Vo Vo Vo Vo Vo = 3.3V = 2.9V = 2.5V = 1.8V = 1.5V Min 0.1 * 0.1 * 4.5 Vo-0.03 -- -- -- -- -- -- -- -- -- -- 300 -40 -40 -40 -- -- -- Typ -- -- -- -- 10 20 50 70 100 91 90 89 85 83 350 -- -- -- TBD TBD 26 Max 13 13 5.5 Vo+0.03 -- -- -- -- -- -- -- -- -- -- 400 +85 +65 +125 -- -- -- Units A A V V mV mV mV Sec mV % % % % % kHz C C C G's G's grams
Switching Frequency Absolute Maximum Operating Temperature Range Recommended Operating Temperature Range Storage Temperature Mechanical Shock Mechanical Vibration Weight
o Ta Ta Ts
4.5V V in 5.5V 0.1A Io 12.5A -- Forced Air Flow = 200 LFM Over Vin and Io Ranges -- Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, Soldered in a PC board
--
--
* ISR-will operate down to no load with reduced specifications.
Output Capacitors: The PT6700 series requires a minimum ouput capacitance of 330F. The maximum allowable output capacitance is 15,000F. Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 12.5ADC with a typical value of 1H. The input capacitance must be rated for a minimum of 1.6Arms 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
For assistance or to order, call
(800) 531-5782
PT6700
Features
* Space Saving SIP Package * +5V input * 5-bit Programmable: 1.3V to 3.5V@13A * High Efficiency * Input Voltage Range: 4.5V to 5.5V * Differential Remote Sense * Short Circuit Protection * Over-Voltage Drive * Power Good Signal
Series
Programming Information
VID3 VID2 VID1 VID0
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
VID4=1 VID4=0 Vout Vout
2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V 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 2.05V
Logic 0 = Pin 13 potential (remote sense gnd) Logic 1 = Open circuit (no pull-up resistors) VID3 and VID4 may not be changed while the unit is operating.
Ordering Information
PT6701 = 1.3 to 3.5 Volts
(For dimensions and PC board layout, see Package Styles 1300 and 1310.)
PT6700 Product Family
Input Voltage PT6701 PT6702 PT6705 PT6715 5V 3.3V 5V 5V 12V 12V Vout Adjust VID VID Resistor Resistor VID Resistor OVP/ Pwr Good Requires +12V Bias
PT Series Suffix (PT1234X)
Case/Pin Configuration Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount
N A C
PT6721 PT6725
CHARACTERISTIC
DATA
PT6701, Vin = 5.0V
Safe Operating Area, Vout = 3.3V
90 100 90 80
PT6701, Vin = 5.0V (Typical performance at Ta = 25C)
Efficiency vs Output Current
Ambient temperature (C)
Efficiency (%)
70 60 50 40 30 20 0 2 4 6 8 10 12
Airflow
200LFM 120LFM 60LFM Nat conv
80
Vout
70 60 50 40 0 2 4 6 8 10 12
3.3V 2.5V 1.8V
Iout-(A)
Iout (A)
Power Dissipation vs Output Current
6 5
30 25
Ripple vs Output Current
Vout
3 2 1 0 0 2 4 6 8 10 12
3.3V 2.5V 1.8V
Ripple (mV)
Pd (Watts)
4
20
Vout
15 10 5 0 0 2 4 6 8 10 12
3.3V 2.5V 1.8V
Iout (A)
Iout (A)
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http:/www.powertrends.com
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Copyright (c) 1999, Texas Instruments Incorporated

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