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For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
C
in
: Required 1000µF electrolytic capacitor –see table footnotes.
C
out
: Required 330µF electrolytic capacitor -see table footnote
L
1
: Optional 1µH input choke –see table footnotes
R
1
: 10-kΩ pull-up for Pwr Good signal.
Pwr Good is high when the output is within specification.
PT6701
10 - 12
14 - 18
19 - 22
2
V
IN
GND
1µH
GND
V
OUT
C
OUT
+
C
IN
+
13
233
L1
PWR GOOD
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID1
VID2
VID3
VID4
PROGRAMMING PINS
456
STBY*
8
7
VID0
OVP DR
V
1
R1
Description
The PT6701 Excalibur™ power
module is a fully integrated 13-A
switching regulator housed in a space-
saving solderable package. The PT6701
operates from a +5V input to provide
a high-performance low-voltage power
source for the industry’s latest µPs,
DSPs, and bus drivers. The PT6701
is programmable from 1.3V to 3.5V
with a 5-bit input, which is compatible
with Intel’s Pentium® II Processor.
The PT6701 has output short
circuit protection, a “Power Good”
output, and an over-voltage protection
(OVP) drive.
Features
• +5-V Input
• 13-A Output Current
• 5-Bit Programmable Output:
1.3V to 3.5V
• VRM 8.3 Compatible
• 90% Efficiency
• Standby On/Off Control
PT6701—5V
13-A Programmable
Integrated Switching Regulator
SLTS040B
(Revised 7/10/2001)
For STBY* pin: open = output enabled
ground = output disabled.
Pin-Out Information
Pin Function
1 OVP Drive
2 Pwr Good
3 VID0
4 VID1
5 VID2
6 VID3
7 VID4
8 STBY*
9 Do not connect
10 V
in
11 V
in
12 V
in
Pin Function
13 Remote Sense Gnd
( 2)
14 GND
15 GND
16 GND
17 GND
18 GND
19 V
out
20 V
out
21 V
out
22 V
out
23 Remote Sense V
out
Ordering Information
PT6701o = 1.3 to 3.5 Volts
(For dimensions and PC board
layout, see Package Styles 1300 &
1310.)
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
• Differential Remote Sense
• Over-Voltage Protection Drive
• Power Good Signal
• Short Circuit Protection
• Space Saving Solderable Case
• 4.7·10
6
Hrs. MTBF
