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參數(shù)資料
| 型號： | PT6985A |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關(guān)穩(wěn)壓9V輸出 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 293K |
| 代理商： | PT6985A |
For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
Features
Dual Outputs
(See Ordering Information)
Ideal Power Source for DSPs
12V Input
Outputs Adjustable
Remote Sensing (Vo
1
& Vo
2
)
Standby Function
Description
The PT6980 Excalibur 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.
Soft-Start
Internal Sequencing
Short Circuit Protection
23-pin Space-Saving Package
Solderable Copper Case
C1 = Req’d 560μF electrolytic
C2 = Req’d 330μF electrolytic
C3 = Optional 100μF electrolytic
PT6980
C
2
+
GND
V
IN
GND
4,5,6
7-11
12-15
18-21
16
C
1
22
C
3
+
23
1
Vo
2
Sense
Vo
1
Sense
3
STBY
Vo
1
Vo
2
PT6980 Series
10-A 12V-Input Dual Output
Integrated Switching Regulator
SLTS154
Revised (10/2/2001)
Ordering Information
PT 6981
= +2.5/1.8 Volts
PT 6982
= +3.3/2.5 Volts
PT 6983
= +3.3/1.8 Volts
PT 6984
= +3.3/1.2 Volts
PT 6985
= +2.5/1.2 Volts
Pin Function
1
Vo
1
Sense
2
No Connect
3
STBY
4
V
in
5
V
in
6
V
in
7
GND
8
GND
9
GND
10
GND
11
GND
12
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 *
*
Vo
1
and Vo
2
can be pin-strapped to another voltage.
See application note on output voltage adjustment.
Pin-Out Information
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code drawing
for the dimensions and PC layout)
Order
Suffix
N
A
C
Package
Code
(ELF)
(ELG)
(ELH)
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