Texas Instruments TPS65265EVM-705, Руководство пользователя, Страница: 2 / 13

0.047uF
C15
0.01uF
C26
0
R6
1
2
3
J6
22uF
C17
GND
GND
GND
0
R7
DNI
TP8
0.047uF
C22
0
R11
22uF
C23
GND
0
R12
DNI
TP11
GND
22uF
C3
22uF
C2
GND
0.047uF
C1
0
R1
J3
GND
TP9
TP10
J2
GND
TP6
TP7
J1
GND
TP1
TP3
EN1
GND
J5
GND
TP2
TP4
VIN
10.0k
R9
VOUT1 1.2V 5A
VOUT2 1.5V 3A
VOUT3 1.8V 2A
VIN 12V
VFB1
22uF
C18
GND
VFB2
VFB2
VFB3
22uF
C24
GND
VFB3
GND
0.01uF
C27
GND
1
2
3
J7
GND
EN2
GND
1
2
3
J8
GND
EN3
GND
10.0k
R16
20.0k
R17
EN1
EN2
EN3
GND
VIN
GND
15.0k
R10
DNI
R13
0
R22
V7V
1uF
C16
22uF
C8
1uF
C10
1uF
C11
82.5k
R15
PGOOD
82pF
C13
22pF
C12
22pF
C21
GND
22pF
C29
DNI
TP5
10.0k
R4
10.0k
R5
GND
VFB1
22pF
C19
GND
22pF
C25
GND
4.7uH
L2
4.7uH
L3
22uF
C5
DNI
C4
GND GND
DNI
C7
22uF
C6
GND GND
0
R2
1
2
3
J9
MODE
GND
V7V
DNI
C32
DNI
C34
DNI
C33
MODE
PG_DLY
PG_DLY
4
7,8
1,2,3
5,6,
DNI
Q1
DNI
L4
DNI
L5
DNI
L6
DNI
C30
DNI
C31
GND
GND
PGOOD
VOUT1
VOUT2
VOUT1
VOUT2
SYNC
SYNC
DNI
J4
GND
DNI
TP12
DNI
TP14
VOUT4 1.8V 2A Vo
Vo
GND
PGOOD
GND
GND
2.2uH
L1
V7V
1
PGOOD
2
EN1
3
EN2
4
EN3
5
FB2
6
COMP2
7
MODE
8
BST2
9
PGND2
10
LX2
11
PVIN2
12
PVIN3
13
LX3
14
PGND3
15
BST3
16
SQE_DLY
17
COMP3
18
FB3
19
ROSC
20
AGND
21
FB1
22
COMP1
23
PG_DLY
24
BST1
25
PGND1
26
PGND1
27
LX1
28
LX1
29
PVIN1
30
PVIN1
31
PSM
32
PAD
33
U1
TPS65265RHBR
10.0k
R27
DNI
TP15
DNI
TP16
TP13
22uF
C9
100k
R21
100k
R18
100k
R19
100k
R20
10.0k
R3
2700pF
C14
2700pF
C20
2700pF
C28
6.8k
R14
6.8k
R8
33k
R23
33k
R24
33k
R25
33k
R26
Background
www.ti.com
1 Background
The TPS65265 PMIC is a triple 5-A/3-A/2-A output current, synchronous step-down (buck) converter with
an operational range of 4.5 to 17 V. The feedback voltage reference for each buck is 0.6 V. Each buck is
independent with dedicated enable and loop compensation. The TPS65265 supports PSM mode and FCC
mode.
As there are many possible options to set the converters, Table 1 presents the performance specification
summary for the EVM.
Table 1. Summary of Performance
Test Conditions Performance
V
IN
= 4.5 to 17 V Buck1, 1.2 V, up to 5 A
spa spa
f
sw
= 610 kHz Buck2, 1.5 V, up to 3 A
spa spa
(25°C ambient) Buck3, 1.8 V, up to 2 A
The evaluation module is designed to provide access to the features of the TPS65265. Some
modifications can be made to this module to test performance at different input and output voltages,
current and switching frequency. Please contact the TI Field Applications Group for advice on these
matters.
2 Schematic
Figure 1 illustrates the TPS65265EVM-705 EVM schematic.
Figure 1. TPS65265EVM-705 Schematic
2 TPS65265EVM-705 Evaluation Module SLVUAK9 – December 2015
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