Datasheet

Bill of Materials www.ti.com
10 Bill of Materials
Designator Type Parameters Part Number Qty Manufacturer
U
1
Synchronous Buck LM27402S 1 Texas
Controller Instruments
C
b
Capacitor 0.22 µF, Ceramic, X7R, 25V, 10% GRM188R71E224KA88D 1 Murata
C
c1
Capacitor 3900 pF, Ceramic, X7R, 50V, 10% GRM188R71H392KA01D 1 Murata
C
c2
Capacitor 150 pF, Ceramic, C0G, 50V, 5% GRM1885C1H151JA01D 1 Murata
C
c3
Capacitor 820 pF, Ceramic, C0G, 50V, 5% GRM1885C1H821JA01D 1 Murata
C
dd
Capacitor 1 µF, Ceramic, X5R, 25V, 10% GRM188R61E105KA12D 1 Murata
C
in
Capacitor 1 µF, Ceramic, X5R, 25V, 10% GRM188R61E105KA12D 1 Murata
C
in1
, C
in2
, C
in3
, Capacitor 22 µF, Ceramic, X5R, 25V, 10% GRM32ER61E226KE15L 5 Murata
C
in4
, C
in5
C
o1
, C
o2
, C
o3
, C
o4
Capacitor 100 µF, Ceramic, X5R, 6.3V, 20% C1210C107M9PACTU 4 Kemet
C
s
Capacitor 0.22 µF, Ceramic, X7R, 25V, 10% GRM188R71E224KA88D 1 Murata
C
sb
Capacitor 1000 pF, Ceramic, X7R, 50V, 10% GRM188R71H102KA01D 1 Murata
C
ss
Capacitor 47000 pF, Ceramic, X7R, 16V, GRM188R71C473KA01D 1 Murata
10%
C
sy
Capacitor 100 pF, Ceramic, C0G/NP0, 50V, GRM1885C1H101JA01D 1 Murata
5%
D
dd
Diode Schottky Diode, Average I = CMOSH-3 1 Central Semi
100mA, Max Surge I = 750 mA
D
sw
Diode Schottky Diode, Average I = 3A, CMSH3-40M 1 Central Semi
Max Surge I = 80A
L
out
Inductor 0.68 µH, 2.34 mΩ IHLP5050CEERR68M06 1 Vishay
Q
L1
N-CH MOSFET 30V, 60A, 43.5 nC, R
DS(ON)
@ 4.5V Si7192DP 1 Vishay
= 1.85 mΩ
Q
T1
N-CH MOSFET 25V, 40A, 13 nC, R
DS(ON)
@ 4.5V = SiR436DP 1 Vishay
6.2 mΩ
R
50
Resistor 49.9Ω, 1%, 0.1W CRCW060349R9FKEA 1 Vishay
R
c1
Resistor 8.06 kΩ, 1%, 0.1W CRCW06038k06FKEA 1 Vishay
R
c2
Resistor 261Ω, 1%, 0.1W CRCW0603261RFKEA 1 Vishay
R
f
Resistor 45.3 kΩ, 1%, 0.1W CRCW060345k3FKEA 1 Vishay
R
fb1
Resistor 20.0 kΩ, 1%, 0.1W CRCW060320k0FKEA 1 Vishay
R
fb2
Resistor 13.3 kΩ, 1%, 0.1W CRCW060313k3FKEA 1 Vishay
R
in
Resistor 2.2Ω, 5%, 0.1W CRCW06032R20JNEA 1 Vishay
R
pg
Resistor 51.1 kΩ, 1%, 0.1W CRCW060351k1FKEA 1 Vishay
R
s
Resistor 1.3 kΩ, 1%, 0.1W CRCW06031k30FKEA 1 Vishay
R
s1
Resistor 6.34 kΩ, 1%, 0.1W CRCW06036k34FKEA 1 Vishay
R
s3
Resistor 750Ω, 1%, 0.1W CRCW0603750RFKEA 1 Vishay
R
sb
Resistor 1.0Ω, 1%, 0.125W CRCW08051R00FNEA 1 Vishay
R
tc
Resistor 5.6 kΩ, 1%, 4110 ppm/°C TFPT1206L5601F 1 Vishay
GND IN, GND Power Terminal 3267 4 Panoma
OUT, VOUT, VIN
VDD, PGD, Turret Terminal 5002 6 Keystone
SS/TK, SYNC,
Rx, Tx
10
AN-1992 LM27402 Evaluation Board SNVA406B–May 2010–Revised May 2013
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