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PT6985C Datasheet

  • PT6985C

  • 10-A 12V-Input Dual Output Integrated Switching Regulator

  • 291.87KB

  • 13頁(yè)

  • TI

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PT6980 Series
10-A 12V-Input Dual Output
Integrated Switching Regulator
SLTS154
Revised (10/2/2001)
Features
鈥?/div>
Dual Outputs
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
(See Ordering Information)
Ideal Power Source for DSPs
12V Input
Outputs Adjustable
Remote Sensing (Vo
1
& Vo
2
)
Standby Function
鈥?/div>
Soft-Start
鈥?/div>
Internal Sequencing
鈥?/div>
Short Circuit Protection
鈥?/div>
23-pin Space-Saving Package
鈥?/div>
Solderable Copper Case
Description
The PT6980 Excalibur鈩?series of
power modules are dual output integrated
switching regulators (ISRs) specifically
designed to power mixed signal ICs.
Operating from a 12-V input bus, the dual
output provides power for both the digital
I/O logic and a DSP core from a single
module. Both output voltages are internally
sequenced during power-up and power-
down to comply with the requirements of
the latest DSP chips. Each output is inde-
pendently adjustable or can be set to at
least one alternative bus voltage with a
simple pin-strap. The modules are made
available in a space-saving solderable case.
The features include output current limit
and short-circuit protection.
Ordering Information
PT6981o
= +2.5/1.8 Volts
PT6982o
= +3.3/2.5 Volts
PT6983o
= +3.3/1.8 Volts
PT6984o
= +3.3/1.2 Volts
PT6985o
= +2.5/1.2 Volts
Pin-Out Information
Pin Function
1
2
3
4
5
6
Vo
1
Sense
No Connect
STBY
V
in
V
in
V
in
GND
GND
GND
GND
GND
Vo
1
Pin
13
14
15
16
17
18
19
20
21
22
23
Function
Vo
1
Vo
1
Vo
1
Vo
1
Adjust *
No Connect
Vo
2
Vo
2
Vo
2
Vo
2
Vo
2
Sense
Vo
2
Adjust *
PT Series Suffix
(PT1234x)
Case/Pin
Configuration
Vertical
Horizontal
SMD
Order
Suffix
Package
Code
(ELF)
(ELG)
(ELH)
7
8
9
10
11
12
N
A
C
(Reference the applicable package code drawing
for the dimensions and PC layout)
*
Vo
1
and Vo
2
can be pin-strapped to another voltage.
See application note on output voltage adjustment.
Standard Application
V o
2
Sense
STBY
3
22
1
18-21
V o
1
Sense
V
IN
4,5,6
Vo
2
Vo
1
PT6980
12-15
+
7-11
16
23
C
1
+
C
2
C
3
GND
GND
C1 = Req鈥檇 560碌F electrolytic
C2 = Req鈥檇 330碌F electrolytic
C3 = Optional 100碌F electrolytic
For technical support and more information, see inside back cover or visit www.ti.com

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