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PT6473 Datasheet

  • PT6473

  • 14-A 3.3-V Input Adjustable Integrated Switching Regulator

  • 290.38KB

  • 14頁

  • TI

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PT6470 Series
14-A 3.3-V Input Adjustable
Integrated Switching Regulator
SLTS180A - JANUARY 2003 - REVISED JUNE 2003
Features
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3.3 V Input
14 A Output Current
Low-Profile (8mm)
DSP Compatible
High Efficiency (Up to 95%)
Adjustable Output Voltage
On/Off Inhibit Function
Pre-Bias Start-up Capability
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Over-Current Protection
Output Remote Sense
Optional Output Capacitor
Small Footprint
(0.64 in虜, Suffix 鈥楴鈥?
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Surface Mount Compatible
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IPC Lead Free 2
Description
The PT6470 Excalibur鈩?series of integrated
switching regulators (ISRs) combines outstand-
ing 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 generation of products.
The integral copper case construction requires
no heatsink, and offers the advantages of solder-
ability and a small footprint (0.64 in虜 for suffix
鈥楴鈥?. Both through-hole and surface mount pin
configurations are available.
The PT6470 series operates from a 3.3-V
input to provide a convenient point-of-load power
source for the industry鈥檚 latest high-performance
DSPs and microprocessors. The series includes
output voltage options as low as 1.0V DC.
Other features include external output voltage
adjustment, on/off inhibit, pre-bias startup, short
circuit protection, and an output remote sense.
Ordering Information
PT6472H
PT6473H
PT6474H
PT6475H
PT6476H
PT6477H
= 2.5 Volts
= 2.0 Volts
= 1.8 Volts
= 1.5 Volts
= 1.2 Volts
= 1.0 Volts
Pin-Out Information
Pin Function
1
2
3
4
5
6
7
Inhibit*
V
in
V
in
V
in
GND
GND
GND
GND
V
out
V
out
+V
sense
V
o
Adjust
PT Series Suffix
(PT1234x )
Case/Pin
Configuration
Vertical
Horizontal
SMD
Order
Suffix
Package
Code
(EPH)
(EPJ)
(EPK)
8
9
10
11
12
N
A
C
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
* Denotes negative logic:
Open = Output enabled
Ground = Output disabled
Standard Application
V
o
Adjust
+V
SENSE
12
11
9鈥?0
V
IN
2鈥?
PT6470
1
5鈥?
V
OUT
Inhibit
GND
GND
For technical support and more information, see inside back cover or visit www.ti.com
+
+
C
IN
470 碌F
(Required)
C
OUT
330 碌F
(Optional)
L
O
A
D
C
in
= Required 470 碌F
C
out
= Optional 330 碌F

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