Datasheet

Power-Up Procedure www.ti.com
6 Power-Up Procedure
1. Define which converters are to be enabled or disabled by connecting the correct jumpers accordingly.
2. Apply a DC voltage to jumper J8. Polarity is clearly marked on the silk-screen.
3. Verify that the relevant converters are powered up by the output voltages. The whole start-up process
will take less than 100 ms. PGOOD will be asserted after 256 ms.
4. Apply loads to the output connectors.
5. To power the USB switch apply a suitable voltage to jumper 27 and enable the switch by connecting
JP25 to 3V3 or leave it open.
7 Bill of Materials
Table 4. Bill of Materials
MANUFACTURER VENDER PART
ITEM QUANTITY DESIGNATOR VALUE FOOTPRINT MANUFACTURER DESCRIPTION
PART NO. NO.
Do not CAP CERAMIC
DNI: C2A, PCC101ACVDKR-
1 2 install 603 Panasonic-ECG ECJ-1VC1H101J 100 pF 50 V 0603
C18a ND
100 pF SMD
CAP 47000 pF 25 V
2 2 C7, C14 47 nF 603 Panasonic-ECG ECJ-1VB1E473K PCC1771DKR-ND
CERM X7R 0603
CAP CER 10 µF
Murata Electroics GRM32ER7YA1
3 2 C8, C13 10 µF 1210 490-5314-6-ND 35 V X7R 10%
North America 06KA12L
1210
CAP CERAMIC
4 2 C9, C11 22 µF 1210 Panasonic-ECG ECJ-4YB1E226M PCC2333DKR-ND 22 µF 25 V X5R
1210
CAP CERAMIC
5 3 C21, C27, C28 10 µF 603 Panasonic-ECG ECJ-1VB1A106M PCC2479DKR-ND 10 µF 10 V 0603
X5R
CAP CERAMIC
6 1 C22 4.7 µF 603 Panasonic-ECG ECJ-1VB0J475M PCC2318DKR-ND 4.7 µF 6.3 V X5R
0603
Do not
DNI: C27A, Do not purchase Do not purchase
7 2 purchase Do not purchase item
C28A item item
item
J8, J9, J11, ED555/ TERMINAL BLOCK
8 5 TB_2X3.5MM On Shore Technology ED555/2DS ED1514-ND
J27, J28 2DS 3.5 mm 2POS PCB
SIP HEADER 64
JP6, JP15, 800-10-064-10-
9 3 JMP0.2 Mil-Max ED7264-ND POS STRAIGHT
JP26 001000
PCB
SIP HEADER 64
JP20, JP24, 800-10-064-10-
10 3 JMP0.3 Mil-Max ED7264-ND POS STRAIGHT
JP25 001000
PCB
SLF7055T- Magnetic-Core
11 2 L9, L11 4.7 µH IND_SLF7055 TDK Corporation 445-4563-2-ND
4R7N3R1-3PF Inductor
RES 383 kΩ 1/10 W
12 1 R1 383 kΩ 603 Panasonic-ECG ERJ-3EKF3833V P383KHDKR-ND
1% 0603 SMD
RES 20 kΩ 1/10 W
13 2 R2, R18 20 kΩ 603 Panasonic-ECG ERJ-3EKF2002V P20.0KHCT-ND
1% 0603 SMD
RES 100 kΩ 1/10 W
14 3 R5, R24, R26 100 kΩ 603 Panasonic-ECG ERJ-3EKF1003V P100KHCT-ND
1% 0603 SMD
CRCW06030000 RES 0 Ω 1/10 W
15 2 R9, R11 0 603 Vishay/Dale 541-0.0GDKR-ND
Z0EA 5% 0603 SMD
RES 40.2 kΩ
16 2 R9a, R11a 40.2 kΩ 603 Panasonic-ECG ERJ-3EKF4022V P40.2KHDKR-ND 1/10 W 1% 0603
SMD
RES 80.6 kΩ
17 1 R9b 80.6 kΩ 603 Panasonic-ECG ERJ-3EKF8062V P80.6KHDKR-ND 1/10 W 1% 0603
SMD
RES 32.4 kΩ
RC0603FR- 311-32.4KHRDKR-
18 1 R11b 32.4 kΩ 603 Yageo 1/10 W 1% 0603
0732K4L ND
SMD
RES 120 kΩ 1/10 W
19 1 R16 120 kΩ 603 Panasonic-ECG ERA-3AEB124V P120KDBDKR-ND
.1% 0603 SMD
12
List of Tables SLVU438–January 2011
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