PT7602N Datasheet, PDF (1/3 Pages) Texas Instruments – The PT7602 is a new series of high-performance, 10A Integrated

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PT7602 Series
3.3V INPUT 10A PROGRAMMABLE
INTEGRATED SWITCHING REGULATOR
Revised 11/10/98
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.
Standard Application
PROGRAMMING PINS
VID0
VID1
VID2
VID3
V_IN
L1
1µH
432 1
26
7 - 11 _PT7602
REMOTE SENSE (+)
20 - 25
V_OUT
+
C_IN
13 - 19 5 12
+
C_OUT
LOAD
GND
STBY*
GND
REMOTE SENSE (-)
Cin = Required 1000µF electrolytic
Cout= Required 330µF electrolytic
L1 = Optional 1µH input choke
Pin-Out Information
Pin Function
1 VID0
2 VID1
3 VID2
4 VID3
5 STBY* - Stand-by
6 Do not connect
7 V_in
8 Vin
9 V_in
Pin Function
10 V_in
11 Vin
12 Remote Sense Gnd
13 GND
14 GND
15 GND
16 GND
17 GND
18 GND
Pin Function
19 GND
20 Vout
21 V_out
22 Vout
23 V_out
24 Vout
25 V_out
26 Remote Sense Vout
27 Do not connect
For STBY* pin; open = output enabled; ground = output disabled.
Specifications
Characteristics
(T_a = 25°C unless noted)
Symbols
Conditions
PT7602 SERIES
Min
Typ
Max
Units
Output Current
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V_o Ripple/Noise
Transient Response
with C_out = 330µF
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
I_o
V_in
∆Vo
Regline
Regload
V_n
ttr
V_os
η
ƒo
Ta
T_a = +60°C, 200 LFM, pkg N
Ta = +25°C, natural convection
0.1A ≤ I_o ≤ 10A
Vin = +3.3V, Io = 10A
0°C ≤ T_a ≤ +65°C
3.1V ≤ Vin ≤ 3.6V, Io = 10A
Vin = +3.3V, 0.1 ≤ Io ≤ 10A
V_in = +3.3V, I_o = 10A
Io step between 5A and 10A
V_o over/undershoot
Vin = +3.3V, Io = 7A
3.1V ≤ Vin ≤ 3.6V
0.1A ≤ I_o ≤ 10A
—
Vo = 1.8V
V_o = 1.5V
0.1^*
—
0.1^*
—
3.1^**
—
Vo-0.03 —
—
±10
—
±10
—
50
—
100
—
200
—
78
—
76
650
700
0
—
10
10
3.6
Vo+0.03
—
—
—
—
—
—
—
750
+85
A
A
V
V
mV
mV
mV
µSec
mV
%
%
kHz
°C
Recommended Operating
Ta
Temperature Range
Storage Temperature
Ts
Mechanical Shock
Forced Air Flow = 200 LFM
Over V_{in and} I_o Ranges
—
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
0
—
-40
—
+65
°C
+125
°C
—
500
—
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
—
10
—
G’s
Weight
—
Vertical/Horizontal
—
31/41
—
grams
* 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 V_out+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 [phone] Fax: [phone] http://www.powertrends.com