PT6460 Series
14-A 5-V Input Adjustable
Integrated Switching Regulator
SLTS178B - JANUARY 2003 - REVISED JUNE 2003
Features
• 5 V Input
• Over-Current Protection
• Output Remote Sense
• Optional Output Capacitor
• Small Footprint
• 14 A Output Current
• Low-Profile (8mm)
• DSP Compatible
• >90 % Efficiency
• Adjustable Output Voltage
• On/Off Inhibit
(0.64 in², Suffix ‘N’)
• Surface Mount Compatible
• IPC Lead Free 2
• Pre-Bias Start-up Capability
Description
Pin-Out Information
Ordering Information
Pin Function
PT6461r = 3.3 Volts
PT6462r = 2.5 Volts
PT6463r = 2.0 Volts
PT6464r = 1.8 Volts
PT6465r = 1.5 Volts
PT6466r = 1.2 Volts
PT6467r = 1.0 Volts
The PT6460 Excalibur™ series of integrated
switching regulators (ISRs) combines outstanding
power density with a comprehensive list of features.
They are an ideal choice for applications where
board space is a premium and performance cannot
be compromised. These modules provide a full 14 A
of output current, yet are housed in a low-profile,
12-pin, package that is almost half the size of the
previous product generation. The integral copper
case construction requires no heatsink, and offers
the advantages of solderability and a small footprint
(0.64 in² for suffix ‘N’). Both through-hole and
surface mount pin configurations are available.
The PT6460 series operates from a 5-V input
bus and provides a convenient point-of-load power
source for the industry’s latest high-performance
DSPs and microprocessors. The series includes
output voltage options as low as 1.0 VDC.
Other features include external output voltage
adjustment, on/off inhibit, pre-bias startup, short
circuit protection, and an output remote sense.
1
2
Inhibit*
Vin
3
Vin
4
Vin
5
GND
GND
GND
GND
Vout
6
7
8
PT Series Suffix
(PT1234x)
9
Case/Pin
Configuration
Order
Suffix
Package
10
11
12
Vout
(+)Sense
Vo Adjust
Code
Vertical
Horizontal
SMD
N
A
C
(EPH)
(EPJ)
(EPK)
* Denotes negative logic:
Open = Output enabled
Ground = Output disabled
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Standard Application
Vo Adjust
+VSENSE
12
11
VOUT
VIN
2–4
9–10
PT6460
1
5–8
+
+
CIN
470 µF
(Required)
COUT
330 µF
(Optional)
L
O
A
D
Inhibit
GND
GND
Cin = Required 470 µF
Cout = Optional 330 µF
For technical support and more information, see inside back cover or visit www.ti.com