NCP5212A, NCP5212T
http://onsemi.com
17
DEMO BOARD BILL OF MATERIAL BOM (See next tables for compensation network and power stage)
Designator Qty Description Value Footprint Manufacturer Manufacturer P/N
U1 1 Single Synchronous Stepdown
Controller
− QFN 16PIN ON Semiconductor NCP5212MNR2G
R1 1 Chip Resistor, $5% DNP − − −
R2 1 Chip Resistor, $5% 10k 0603 Panasonic ERJ3GEYJ103V
R7 1 Chip Resistor, $5% 1k 0603 Panasonic ERJ3GEYJ102V
R21 1 Chip Resistor, $5% 20 0603 Panasonic ERJ3GEYJR200V
R22 1 Chip Resistor, $5% 0 0603 Panasonic ERJ3GEYJR00V
R23 1 Chip Resistor, $5% 5.6 0603 Panasonic ERJ3GEYJR5R6V
R26 1 Chip Resistor, $5% 0 0603 Panasonic ERJ3GEYJR00V
R27 1 Chip Resistor, $5% DNP − − −
R28 1 Chip Resistor, $5% 0 0603 Panasonic ERJ3GEYJR00V
R29 1 Chip Resistor, $5% 5.6 0603 Panasonic ERJ3GEYJR5R6V
R210 1 Chip Resistor, $1% 1k 0603 Panasonic ERJ3EKF1001V
R212 1 Chip Resistor DNP 0603 Panasonic ERJ3EKF2403V
R216 1 Chip Resistor, $5% 10k 0603 Panasonic ERJ3GEYJ103V
R220 1 Chip Resistor, $5% 0 0603 Panasonic ERJ3GEYJR00V
R223 1 Chip Resistor, $1% 1k 0603 Panasonic ERJ3EKF1001V
R224 1 Chip Resistor, $5% 100k 0603 Panasonic ERJ3GEYJ104V
C3 1 − DNP − − −
C21 1 MLCC Chip Capacitor, $20% Temp
Char: X5R, Rate V = 25 V,
1 mF
0805 Panasonic ECJ2FB1E105M
C22 1 MLCC Chip Capacitor, $20% Temp
Char: X5R, Rate V = 25 V
1 mF
0805 Panasonic ECJ2FB1E105M
C23 1 MLCC Chip Capacitor, $10% Temp
Char: X7R, Rate V = 50 V
15 nF 0805 Panasonic ECJ1VB1E153K
C24 1 MLCC Chip Capacitor, $10% Temp
Char: X7R, Rate V = 50 V
100 nF 0603 Panasonic ECJ1VB1E104K
C25 1 MLCC Chip Capacitor
Temp Char: X7R, $10% Rate V = 50 V
100 nF 0603 Panasonic ECJ1VB1E104K
C26 1 MLCC Chip Capacitor
Temp Char: X5R, $20% Rate V = 25 V
10 mF
1206 Panasonic ECJ3YB1E106M
C27 1 MLCC Chip Capacitor
Temp Char: X5R, $20% Rate V = 25 V
10 mF
1206 Panasonic ECJ3YB1E106M
C28 1 MLCC Chip Capacitor
Temp Char: X5R, $20% Rate V = 25 V
10 mF
1206 Panasonic ECJ3YB1E106M
C29 1 MLCC Chip Capacitor
Temp Char: X5R, $20% Rate V = 25 V
1 mF
1206 Panasonic ECJ3YB1E105M
C212 1 DNP − − −
C216 1 MLCC Chip Capacitor
Temp Char: X5R, $20% Rate V = 25 V
1 mF
0805 Panasonic ECJ2FB1E105M
M5 1 Power MOSFET 50 V, 200 mA Single
N−Ch
− SOT−23 ON Semiconductor BSS138L
D21 1 − DNP − − −
D22 1 30 V Schottky Diode
Vf = 0.35 V @ 10 mA
− SOT−23 ON Semiconductor BAT54LT1
D23 1 − DNP − − −
SYNC, J21 2 SMB SMT Straight Socket − 5.1 x 5.1 mm Tyco Electonics RS Stock# 420−5401
JP2, JP3, J2, EN,
FB, COMP, DH, DL,
SWN, PGOOD,
PGND, PGND
12 Pin Header Single Row − Pitch = 2.54 mm Betamax 2211S−40G−F1
LED1 1 Surface Mount LED
Color = Green
− 0805 LUMEX SML−LX0805GC−TR
+5V, AGND, GND,
VOUT, VIN, PGND
1 Terminal Pin − f = 1.74 mm HARWIN H2121−01
