PT6703 Datasheet, PDF (1/7 Pages) Texas Instruments – 13-A Low-Voltage Programmable Integrated Switching Regulator

PT6703—3.3V/5V
13-A Low-Voltage Programmable
Integrated Switching Regulator
SLTS151
(Revised 6/26/2001)
Features
• +3.3V/5V Input
• 13-A Output Current
• 5-Bit Programmable Output:
1.1V to 1.85V (25mV Steps)
• VRM 9.0 Compatible
• 86% Efficiency
• Standby On/Off Control
• Differential Remote Sense
• Over-Voltage Protection Drive
• Power Good Signal
• Short Circuit Protection
• Space Saving Solderable Case
• 4.7·10⁶ Hrs. MTBF
Description
The PT6703 is a fully integrated
13 A switching regulator housed in
a space-saving solderable package. The
PT6703 will operate from either a
3.3V or 5V input to provide a high-
performance low-voltage output that is
programmable over the range 1.1V to
1.85V. This output voltage range is
specifically suited to high performance
µP and DSP applications that require
core supply voltages below 1.3V. The
voltage control inputs are also TTL
compatible. Additional features in-
clude output short circuit protection,
a “Power Good” output, and an over-
voltage protection (OVP) drive.
Ordering Information
PT6703o = 1.1 to 1.85 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
Pin-Out Information
Pin Function
1 OVP Drive
2 Pwr Good
3 VID0
4 VID1
5 VID2
6 VID3
7 VID4
8 STBY*
9 Donotconnect
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
For STBY* pin: open = output enabled
ground = output disabled.
Standard Application
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
V_IN
L1
1µH
10–12
PWR GOOD
GND
STBY*
R1
C_IN
+
1,000µF
REMOTE SENSE (+)
OVP DRV
7654 3
1 23
PT6703
19–22
V_OUT
28
14–18
13
C_OUT
+
330µF
LOAD
GND
REMOTE SENSE (-)
Cin/Cout: Required electrolytic capacitors –see footnotes.
L1: Optional 1µH input choke –see footnotes
R1: 10-kΩ pull-up for Pwr Good signal.
Pwr Good is high when the output is within specification.
For technical support and more information, see inside back cover or visit www.ti.com