Datasheet

4 5 6 7 3 2 1
PGND/EP
VOUT
SS SYNC FB
VIN
EN AGND
V
IN
C
IN
2,3
10 PF
Enable
7V to 36V
U1
R
FBB
1.07k
LMZ23603TZ
3.3V
O
@ 3A
C
O
1,6
0.047 PF
C
O
5
220 PF
R
ENH
OPT
100Ö
R
ENT
42.2k
R
ENB
12.7k
R
FBT
3.32k
C
IN
1,5
0.047 PF
C
O
2
100 PF
OPT
+
D1 OPT
5.1V
SYNC
R
SN
OPT
1.50 kÖ
C
SS
0.47µF
C
IN
6 OPT
150 PF
+
R
FRA
OPT
23.7Ö
LMZ23603
SNVS711I –MARCH 2011–REVISED OCTOBER 2013 www.ti.com
Simplified Evaluation Board Schematic Diagram
Figure 56.
Table 1. Evaluation Board Bill of Materials
Ref Des Description Case Size Case Size Manufacturer P/N
U1 SIMPLE SWITCHER PFM-7 Texas Instruments LMZ23603TZ
C
in
1,5 0.047 µF, 50V, X7R 1206 Yageo America CC1206KRX7R9BB473
C
in
2,3 10 µF, 50V, X7R 1210 Taiyo Yuden UMK325BJ106MM-T
C
in
6 (OPT) CAP, AL, 150µF, 50V Radial G Panasonic EEE-FK1H151P
C
O
1,6 0.047 µF, 50V, X7R 1206 Yageo America CC1206KRX7R9BB473
C
O
2 (OPT) 100 µF, 6.3V, X7R 1210 TDK C3225X5R0J107M
C
O
5 220 μF, 6.3V, SP-Cap (7343) Panasonic EEF-UE0J221LR
R
FBT
3.32 kΩ 0805 Panasonic ERJ-6ENF3321V
R
FBB
1.07 kΩ 0805 Panasonic ERJ-6ENF1071V
R
SN
(OPT) 1.50 kΩ 0805 Vishay Dale CRCW08051K50FKEA
R
ENT
42.2 kΩ 0805 Panasonic ERJ-6ENF4222V
R
ENB
12.7 kΩ 0805 Panasonic ERJ-6ENF1272V
R
FRA
(OPT) 23.7Ω 0805 Vishay Dale CRCW080523R7FKEA
R
ENH
100 Ω 0805 Vishay Dale CRCW0805100RFKEA
C
SS
0.47 μF, ±10%, X7R, 16V 0805 AVX 0805YC474KAT2A
D1(OPT) 5.1V, 0.5W SOD-123 Diodes Inc. MMSZ5231BS-7-F
22 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: LMZ23603