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参数资料
| 型号： | PT8125C |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 28 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA31 |
| 封装： | SMD-31 |
| 文件页数： | 6/11页 |
| 文件大小： | 195K |
| 代理商： | PT8125C |
For technical support and more information, see inside back cover or visit www.ti.com
PT8120 Series
30-A 12-V Input Programmable
Integrated Switching Regulator
PT8124 Standard Application
Cin
= Required 1500F electrolytic
Cout = Required 660F low ESR OS-Con, or
1,200F aluminum electrolytic
Lin
= Optional 1H input choke
PT8124
(Only)
4321
31
23–30
617–22
12–16
L
O
A
D
C
OUT
+
C
IN
+
PROGRAMMING PINS
V
IN
V
OUT
GND
REMOTE SENSE
STBY*
VID 25mV
VID 0
VID 1
VID 2
L
in
1H
GND
VID 3
5
VID
Common
11
VID 3
VID 2 VID 1 VID 0
11
10
11
01
11
00
10
11
10
01
10
00
01
11
01
10
01
00
11
00
10
00
01
00
*For STBY pin:
Open
=Output Enabled
Ground
=Output Disabled
Pin Function
1
VID 25mV
2
VID 0
3
VID 1
4
VID 2
5
VID 3
6
STBY
7
Do Not Connect
8
Do Not Connect
9
Do Not Connect
10
Do Not Connect
11
VID Common
12
Vin
13
Vin
14
Vin
15
Vin
16
Vin
Notes:
i) Logic 0 = Connect to VID Common
ii) Logic 1 = Open circuit (no pull-up resistors)
iii) VID2 and VID3 may not be changed while the unit is operating.
Pin Function
17
GND
18
GND
19
GND
20
GND
21
GND
22
GND
23
Vout
24
Vout
25
Vout
26
Vout
27
Vout
28
Vout
29
Vout
30
Vout
31
Remote Sense
PT8124 Pin-Out Information
(VRM 8.5)
VID 25mV=0
VID 25mV=1
Vout
1.300V
1.325V
1.350V
1.375V
1.400V
1.425V
1.450V
1.475V
1.500V
1.525V
1.550V
1.575V
1.600V
1.625V
1.650V
1.675V
1.700V
1.725V
1.750V
1.775V
1.800V
1.825V
1.050V
1.075V
1.100V
1.125V
1.150V
1.175V
1.200V
1.225V
1.250V
1.275V
PT8124 Voltage Programming Information
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