Datasheet

B
Title
Size Date
Filename
B
Number
Rev
Drawn by
Sheet of
C
D
A
A
B
C
D
1 2 3 4
4 3 2 1
A 1
TPS4335x
F. DEHMELT
TPS4335x.SCHDOC
1
06/06/2011
Texas Instruments
Switchmode Power Supply - Buck Regulator
GA1
100uF
+
C25
1uF
C27
GND
GND
GND
GND
31.6k
R19
GND GND
GND
GND
VIN
4.7uH
L3
0.01
R13
82.5k
R17
GND
49.9 R5
GND
VIN
10uH
L2
0.02
R2
432k
R8
GA2
PHA
GA1 GA2
PHA
SA1
FBA
SA2
SA1
FBA
SA2
VBAT
1k5
R12
VIN
GC2
GC2
1uF
C11
GND
1
JP5
VIN
ENA
GND
1
JP6
VIN
ENB
GND
ENB ENA
49.9 R16 82.5k R11
VIN
EXTSUP
EXTSUP
GND
1
JP2
SYNC
SYNC
GND
40.2k R7
Frequency Select
100k R14
RT
RT
4 - 40V
Input
GND
1000pF C31
1uF
C16
GND
GND
GND
GND
VOUTB_K
VOUTA_K
PHB
VBAT
VREG
VREG
0 R10
GND
100uF
+
C14
VIN
255k R20
10
R15
1000p
C20
GND
10 R9
1 2
J2
1 2
J3
GND
GND
GND
GND
GND
GND
GND
GND
PHB
VOUTB
VOUTA
1
JP4
VOUTB
GND
VOUTA
PHA
0.1uF
C3
1uF
C21
220nF
C23
220nF
C22
10nF
C33
1000pF
C4
1nF
C29
10nF
C32
GND
GND
11k
R18
82pF
C18
3.3nF
C30
COMPB
COMPB
27pF C24
COMPA
COMPA
0
R1
GND
GND
GND
GND
GND
GND
Si4840DY
Q6
Si4840DY
Q4
Si4840DY
Q2
Si4840DY
Q7
10nF
C13
10nF
C28
PGA
PGB
SSB
SSA
DLYAB
GND
1 6
JUMPER_2X3X100MIL
47p
C12
47p
C17
VBAT
VBAT
GND
+
100uF / 63V
C1
PHB
32
CBA
5
NC
2
EXTSUP
37
GB1
33
CBB
34
PHA
7
GA1
6
GC2
4
NC
3
VBAT
1
NC
36
VREG
35
VIN
38
FBA
12
PGNDA
9
SSA
14
COMPA
13
SA2
11
SA1
10
GA2
8
NC
19
ENA
16
NC
18
ENB
17
PGA
15
SSB
25
PGNDB
30
COMPB
26
FBB
27
SB1
29
SB2
28
GB2
31
AGND
23
SYNC
20
RT
22
DLYAB
21
PGB
24
TPS43330DAP
PAD
39
U1
TPS43350DAP
3
2
1
Q1 IRF4905STRLPBF
30CTQ060STRLPBF
D1
1 2
J1
+
100uF / 63V
C7
10uF
C2
10uF
C19
GND
www.ti.com Schematic and Bill of Materials
4 Schematic and Bill of Materials
Figure 10. TPS4335xEVM Schematic
7
SLVU484–June 2011 TPS4335xEVM Evaluation Module
Submit Documentation Feedback
Copyright © 2011, Texas Instruments Incorporated