Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- Electrical Specifications
- Performance Benefits
- Absolute Maximum Ratings
- Operating Ratings
- Electrical Characteristics
- Typical Performance Characteristics
- Block Diagram
- Design Steps for the LMZ22005 Application
- ENABLE DIVIDER, RENT, RENB AND RENHSELECTION
- OUTPUT VOLTAGE SELECTION
- SOFT-START CAPACITOR SELECTION
- TRACKING SUPPLY DIVIDER OPTION
- CO SELECTION
- CIN SELECTION
- POWER DISSIPATION AND BOARD THERMAL REQUIREMENTS
- PC BOARD LAYOUT GUIDELINES
- Additional Features
- Typical Application Schematic Diagram
- Power Module SMT Guidelines
- Revision History

LMZ22005
SNVS686I –MARCH 2011–REVISED OCTOBER 2013
www.ti.com
Table 1. Typical Application Bill of Materials
Ref Des Description Case Size Manufacturer Manufacturer P/N
U1 SIMPLE SWITCHER ® PFM-7 Texas Instruments LMZ22005TZ
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
FF
180 pF, ±10%, C0G, 50V 0805 TDK 08055A181JAT2A
C
SS
047 μF, ±10%, X7R, 16V 0805 AVX 0805YC474KAT2A
D1(OPT) 5.1V, 0.5W SOD-123 Diodes Inc. MMSZ5231BS-7-F
Figure 51. Top View Evaluation Board – See AN–2085 SNVA457
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