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PT7761-5V Datasheet, PDF (1/8 Pages) Texas Instruments – 40-A Programmable Integrated Switching Regulator Module | |||
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PT7761â5V
40-A Programmable Integrated
Switching Regulator Module
SLTS152
(Revised 10/24/2001)
Features
⢠Single Device: 40ADC
⢠+5V Input
⢠5-bit Programmable:
1.3V to 3.5V
⢠90% Efficiency
⢠Differential Remote Sense
⢠Short-Circuit Protection
⢠Space-Saving Package
⢠Solderable Copper Case
⢠âCurrent Boosterâ Compatible
⢠Shutdown Control
Description
The PT7761 is a high performance
integrated switching regulator (ISR),
housed in a solderable, 31-pin space-
saving copper package. Operating
from and input voltage of +5V, the
PT7761 provides up to 40A of low-
voltage power for the industryâs latest
DSPs, and µ-Processors.
The PT7761 performance extends
both the flexibility and output current
range of the âBig Hammerâ series of
Plug-in Power modules, and provides
a state-of-the-art solution for highly
integrated digital systems that de-
mand high power supply currents at
low output voltages.
The PT7761 is programmable from
1.3V to 3.5V via a 5-bit input, which
is compatible with Intelâs Pentium®
series microprocessors.
The PT7761âs features include a
momentary-interrupt style of short-
circuit protection, a standby control,
and a differential remote sense to
compensate for voltage drop between
the ISR and load. For additional
output current the PT7761 can
operate with up to three current
boosters.
Ordering Information
PT7761o = 1.3 to 3.5V Regulator
* PT7769o = 40-A Current Booster
* Consult application notes for information on
Current Booster operation
PT Series Suffix (PT1234 x )
Case/Pin
Configuration
Order
Suffix
Package
Code
Vertical
Horizontal
SMD
N
(EKH)
A
(EKF)
C
(EKG)
(Reference the applicable package code drawing for
the dimensions and PC board layout)
Standard Application
VID0
VID1
VID2
VID3
VID4
PROGRAMMING PINS
54321
REMOTE SENSE(+)
31
LIN
VIN
1 µH
9â14
PT7761
23â30
VOUT
SYNC OUT
GND
+
C IN
7 6 16â22
15
+
COUT
L
O
A
D
GND
STBY*
REMOTE SENSE(â)
Cin = Required 1500µF electrolytic
Cout = Required 330µF electrolytic
Lin = Optional 1µH input choke
For technical support and more information, see inside back cover or visit www.ti.com
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