|
PT8000-5V Datasheet, PDF (1/8 Pages) Texas Instruments – 60 Amp High-Performance | |||
|
PT8000â5V
60 Amp High-Performance
Programmable ISR
SLTS135A
(Revised 4/5/2001)
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
⢠Output Tracking Feature
⢠Over-Temp Shutdown
⢠Power Good & OV Flag
⢠Low-Profile Package
⢠Solderable Copper Case
⢠âCurrent Boosterâ
Compatible
Ordering Information
PT8001o = 1.3 to 3.5 Volts
PT8002o = 1.075 to 1.850 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
For dimensions and PC board layout, see
Package Styles 1600, 1610 and 1615
Standard Application
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 âPlug-in Powerâ
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 Intelâs
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
integration. Output short-circuit
protection and over-temperature
shutdown enables these modules to
survive any load fault. Two self-
diagnosotic signals, âPower Goodâ
(PWRGD*) and âOver-Voltage
Flagâ (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.
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
V IN
30 31 32 33 34
VID4 â VID0
x8
V IN
PT8000
+ REMOTE SENSE
25
+SNS
VOUT x10
VOUT
+
C IN
STBY
STBY* GND PWRGD* âSNS VDD
22
x10
21
20
Q1
PWRGD*
Cin = Required 2000µF electrolytic (1)
CL = Optional capacitance at load (1)
R1 = Required 10k pull-up resistor when using the PWRGD*
signal. The PWRGD* output is low when the output
voltage is within specifications.
L
+
CL
O
A
D
GND
GND
â REMOTE SENSE
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
|
▷ |