![](http://datasheet.mmic.net.cn/330000/PT8000_datasheet_16445868/PT8000_1.png)
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
C
in
C
L
R
1
= Required 2000μF electrolytic
= Optional capacitance at load
= Required 10k pull-up resistor when using the PWRGD*
signal. The PWRGD* output is low when the output
voltage is within specifications.
(1)
(1)
Features
60A Output Current
Multi-Phase Topology
+5V Input
5-bit Programmable:
1.3V to 3.5V
1.075V to 1.850V
High Efficiency
Differential Remote Sense
Short Circuit Protection
PT8000
VID4 – VID0
34
33
32
31
30
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
C
IN
+
V
IN
GND
V
IN
x8
x10
x10
V
OUT
GND
L
O
A
D
C
L
+
V
OUT
GND
25
+ REMOTE SENSE
– REMOTE SENSE
20
STBY*
22
PWRGD*
V
DD
21
PWRGD*
+SNS
–SNS
STBY
Q
1
Description
The PT8000 series is a 60 A high-
performance, Integrated Switching
Regulator (ISR) housed in a single
low-profile 44-pin SIP package.
Operating from an input voltage of
+5V, the PT8000 series offers a
state-of-the-art “Plug-in Power”
solution for highly-integrated
digital systems that demand high
power supply currents at low voltages.
The output voltage from these
modules is programmable over a
preset range via a 5-bit input. The
PT8001 may be set from 1.3V to
3.5V which is compatible with Intel’s
Pentium Pro μ-processors. The
output voltage of the PT8002 is
programmable from 1.075V to 1.85V.
The PT8000 series incorporates
many features to facilitate system
Ordering Information
PT8001
= 1.3 to 3.5 Volts
PT8002
= 1.075 to 1.850 Volts
For dimensions and PC board layout, see
Package Styles 1600, 1610 and 1615
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
integration. Output short-circuit
protection and over-temperature
shutdown enables these modules to
survive any load fault. Two self-
diagnosotic signals, “Power Good”
(PWRGD*) and “Over-Voltage
Flag” (OVF*) are provided. And a
unique tracking feature allows the
output to be synchronized to a master
ramp voltage during power-up.
Other features include a standby
input, and a differential remote sense
to compensate for voltage drop between
the ISR and load.
A low ESR capacitance of 2000μF
is required at the input for proper
operation.
PT8000—5V
60 Amp High-Performance
Programmable ISR
Output Tracking Feature
Over-Temp Shutdown
Power Good & OV Flag
Low-Profile Package
Solderable Copper Case
“Current Booster”
Compatible
SLTS135A
(Revised 4/5/2001)