PT8100 Datasheet, PDF (3/14 Pages) Texas Instruments – 40-A 3.3/5-V Input Programmable Integrated Switching Regulator

PT8100 Series
40-A 3.3/5-V Input Programmable
Integrated Switching Regulator
Pin-Out Information (PT8104 only)
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
Pin Function
17 GND
18 GND
19 GND
20 GND
21 GND
22 GND
23 Vout
24 Vout
25 Vout
26 Vout
27 V_out
28 Vout
29 Vout
30 Vout
31 Remote Sense
* For STBY pin:
Open =Output Enabled
VID Common =Output Disabled
Voltage Programming Information (PT8104 only)
PT8104
(VRM 8.5)
VID 3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID 2 VID 1 VID 0
111
110
101
100
011
010
001
000
111
110
101
100
011
010
001
000
VID 25mV=0
Vout
1.300V
1.350V
1.400V
1.450V
1.500V
1.550V
1.600V
1.650V
1.700V
1.750V
1.800V
1.050V
1.100V
1.150V
1.200V
1.250V
VID 25mV=1
Vout
1.325V
1.375V
1.425V
1.475V
1.525V
1.575V
1.625V
1.675V
1.725V
1.775V
1.825V
1.075V
1.125V
1.175V
1.225V
1.275V
Notes:
i) Logic 0 = Connect to VID Common
ii) Logic 1 = Open circuit (no pull-up resistors)
iii) VID3 and VID4 may not be changed while the unit is operating.
Standard Application (PT8104 only)
VID 25mV
VID 0
VID 1
VID 2
VID 3
VID
Common
PROGRAMMING PINS
L_in
12–16
V_IN
1µH
+
C_IN
GND
STBY*
REMOTE SENSE
11 5 4 3 2 1 31
PT8104
6
17–22
23–30
+
C_OUT
V_OUT
L
O
A
D
GND
Cin = Required 1500µF electrolytic
Cout = Required 660µF low ESR OS-Con®, or
1,200µF aluminum electrolytic
Lin = Optional 1µH input choke
For technical support and more information, see inside back cover or visit www.ti.com
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