low-profile 44-pin SIP package.
state-of-the-art 鈥淧lug-in Power鈥?/div>
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鈥檚
Pentium Pro廬 碌-processors. The
output voltage of the PT8002 is
programmable from 1.075V to 1.85V.
The PT8000 series incorporates
many features to facilitate system
integration. Output short-circuit
protection and over-temperature
shutdown enables these modules to
survive any load fault. Two self-
diagnosotic signals, 鈥淧ower Good鈥?/div>
(PWRGD*) and 鈥淥ver-Voltage
Flag鈥?(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 2000碌F
is required at the input for proper
operation.
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
For dimensions and PC board layout, see
Package Styles 1600, 1610 and 1615
Vertical Through-Hole
Standard Application
C
in
C
L
R
1
= Required 2000碌F electrolytic
(1)
= Optional capacitance at load
(1)
= Required 10k pull-up resistor when using the PWRGD*
signal. The PWRGD* output is low when the output
voltage is within specifications.
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
30
V
IN
x8
V
IN
+ REMOTE SENSE
25
+SNS
V
OUT
x10
31 32 33 34
VID4 鈥?VID0
V
OUT
V
DD
+
PT8000
GND
x10
STBY*
22
+
PWRGD* 鈥揝NS
21
20
C
IN
STBY
GND
Q
1
PWRGD*
GND
鈥?REMOTE SENSE
C
L
L
O
A
D
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
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