MIC4684_10 Datasheet, PDF (13/16 Pages) Micrel Semiconductor – 2A High-Efficiency SuperSwitcher Buck Regulator

MIC4684
Micrel, Inc.
Printed Circuit Board
Evaluation Board Optimized for Low Input Voltage by using Feed-Forward Diode Configuration (V_IN = 4V to 16V)
Figure 7a. Bottom Side Copper
Figure 7b. Top Side Copper
Figure 7c. Bottom Side Silk Screen
Figure 7d. Top Side Silk Screen
Abbreviated Bill of Material (Critical Components)
Reference
Part Number
Manufacturer
Description
Qty
C1
594D156X0035D2T
Vishay Sprague⁽¹⁾
15µF 35V
1
C2, C5
VJ0805Y104KXAAB
Vitramon
0.1µF 50V
2
C6
GRM426X7R334K50
Murata
0.33µF, 50V ceramic capacitor
C3
Optional
1800pF, 50V ceramic
(1)
C4
594D337X06R3D2T
Vishay Sprague⁽²⁾
330µF, 6.3V, tantalum
1
D1
B340A
Diode Inc⁽³⁾
Schottky 3A, 40V
1
D2
MBRX120
Micro Com. Components⁽⁵⁾ Schottky 1A, 20V
1
L1
CDRH104R-470MC
Sumida⁽⁴⁾
U1
MIC4684BM
Micrel, Inc.⁽⁶⁾
47µH, 2.1A I_SAT
1
1A 200kHz power-SO-8 buck regulator
1
Notes:
1. Vishay Dale, Inc., tel: [phone], http://www.vishay.com
2. Vishay Sprague, Inc., tel: [phone], http://www.vishay.com
3. Diodes Inc, tel: [phone], http://www.diodes.com
4. Sumida, tel: [phone], http://www.sumida.com
5. Micro Commercial Components, tel: [phone]
6. Micrel, Inc. tel: [phone], http://www.micrel.com
January 2010
13
M9999-012610