參數(shù)資料
型號： PT6922N
英文描述： 30V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; A IRL3713S with Standard Packaging
中文描述： 開關(guān)電源控制器
文件頁數(shù)： 1/7頁
文件大小： 138K
代理商： PT6922N
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PT6920 Series
Standard Application
25 Watt 5V Input Dual Output
Integrated Switching Regulator
Ordering Information
PT6921
J
= +3.3 Volts
+2.5/+1.8 Volts
PT6922
J
= +3.3 Volts
+1.5 Volts
C1 = Req’d 560μF electrolytic
(1)
C2 = Req’d 330μF electrolytic
(1)
C3 = Optional 100μF electrolytic
Dual Outputs:
+3.3V/6A
+2.5V/2.2A or +1.8V/1.5A
Adjustable Output Voltage
Remote Sense (both outputs)
Standby Function
Over-Temperature Protection
Soft-Start
Internal Sequencing
23-pin SIPPackage
Pin Function
1
V
1
Remote Sense
2
Do Not Connect
3
STBY
4
V
in
5
V
in
6
V
in
7
GND
8
GND
9
GND
10
GND
11
GND
12
V
1out
Pin
13
14
15
16
17
18
19
20
21
22
23
Function
V
1out
V
1out
V
1out
V
1
Adjust
Do Not Connect
V
2out
V
2out
V
2out
V
2out
V
2
Remote Sense
V
2
Adjust
*
Pin-Out Information
The PT6920 is a series of 25W
dual output ISRs that were purposely
designed to power the latest genera-
tion DSP chips. Both output voltages
are independently adjustable, allowing
either output voltages to be changed
to accomodate a DSP upgrade. The
internal power sequencing of both
outputs meet the requirements of TI’s
‘C6000 series DSPs.
(For dimensions and PC board layout,
see Package Styles 1100 and 1110.)
PT6920
C2
+
GND
V1
OUT
V
IN
GND
4,5,6
7-11
12-15
18-21
16
C1
22
C3
+
23
1
V2
OUT
R1
R2
R3
R4
V2
Sense
V1
Sense
3
STBY
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
A
Horizontal Surface Mount
N
C
Note:
for PT6921 only:
with pin 23 open, V2out=2.5V
with pin 23 shorted to pin 22, V2out=1.8V
Patent Pending*
SLTS042A
(Revised 6/30/2000)
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
PT6920 SERIES
Typ
—
—
—
—
—
—
—
—
—
Symbols
I
o
Conditions
T
a
=
+60°C, 200 LFM, pkg N V
1
= 3.3V
Min
0.1
(2)
0
0
0
0.1
0
0
0
4.5
Max
5.5
(3)
2.2
(3)
1.75
(3)
1.2
(3)
6.0
2.2
1.75
1.2
5.5
Units
V
2
= 2.5V
V
2
= 1.8V
V
2
= 1.2V
A
T
a
=
+25°C, natural convection V
1
= 3.3V
V
2
= 2.5V
V
2
= 1.8V
V
2
= 1.2V
A
Input Voltage Range
Output Voltage Tolerance
V
in
V
o
0.1A
≤
I
o
≤
I
max
V
= +5V, I
= I
max,
both outputs
0°C
≤
T
a
≤
+65°C
4.5V
≤
V
in
≤
5.5V, I
o
= I
max
V
V
o
-0.1
—
V
o
+0.1
V
Line Regulation
Reg
line
V
1
= 3.3V
V
2
= 2.5V
V
1
= 3.3V
V
2
= 2.5V
V
1
= 3.3V
V
2
= 2.5V
—
—
—
—
—
—
—
—
—
—
±7
±7
±17
±4
50
25
25
60
60
75
±17
±13
±33
±10
—
—
—
—
—
—
mV
Load Regulation
Reg
load
V
in
= +5V, 0.1
≤
I
o
≤
I
max
mV
V
o
Ripple/Noise
V
n
V
in
= +5V, I
o
= I
max
mV
Transient Response
with C
2
= 330μF
t
tr
V
os
I
o
step between 0.5xI
max
and I
max
V
o
over/undershoot
μSec
mV
V
1
= 3.3V
V
2
= 2.5V
Efficiency
Switching Frequency
η
o
V
in
= +5V, I
o
= 4A total
4.5V
≤
V
in
≤
5.5V
0.1A
≤
I
o
≤
I
max
Over V
in
Range
%
475
600
725
kHz
Absolute Maximum
Operating Temperature Range
Storage Temperature
Weight
T
a
–40
(4)
—
+85
(5)
°C
T
s
—
—
Vertical/Horizontal
-40
—
—
29
+125
—
°C
grams
Notes:
(1) The PT6920 series requires a 560μF electrolytic capacitor on the input and a 330μF electrolytic capacitor on the output for proper operation in all applications.
(2) I
o
min current of 0.1A can be divided btween both outputs; V
, or V
. The ISR will operate down to no-load with reduced specifications.
(3) I
max listed for each output assumes the maximum current drawn simultaneously on both outputs. Consult the factory for the absolute maximum.
(4) For operating temperatures below 0°C, use tantalum type capacitors on both the input and output.
(5) See Safe Operating Area curves for appropriate derating.
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PT6931 制造商:TI 制造商全稱:Texas Instruments 功能描述:5V TO 3.3V/2.5V 25 WATT DUAL OUTPUT INTEGRATED SWITCHING REGULATOR
PT6931A 功能描述:DC/DC轉(zhuǎn)換器 25W 5V-Input Adj Dual Output ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PT6931C 功能描述:DC/DC轉(zhuǎn)換器 25W 5V-Input Adj Dual Output ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
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