MIC4720 Datasheet, PDF (20/21 Pages) Micrel Semiconductor – 3mm x 3mm 2.0MHz 2A Integrated Switch Buck Regulator

Micrel, Inc.
MIC4720 Schematic and BOM for 2A Output
MIC4720
Item
Part Number
Description
Manufacturer
Qty
C1a,C1b C2012JB0J106K
10µF Ceramic Capacitor X5R 0805 6.3V
TDK
GRM219R60J106KE19 10µF Ceramic Capacitor X5R 0805 6.3V
Murata
2
08056D106MAT
10µF Ceramic Capacitor X5R 0805 6.3V
AVX
C2
0402ZD104MAT
0.1µF Ceramic Capacitor X5R 0402 10V
AVX
1
C3
C2012JB0J475K
4.7µF Ceramic Capacitor X5R 0603 6.3V
TDK
GRM188R60J475KE19 4.7µF Ceramic Capacitor X5R 0603 6.3V
Murata
06036D475MAT
4.7µF Ceramic Capacitor X5R 0603 6.3V
AVX
1
C4
VJ0402A820KXAA
82pF Ceramic Capacitor 0402
Vishay VT
1
D1
SSA33L
3A Schottky 30V SMA
Vishay Semi
1
L1
RLF7030-1R0N6R4
1µH Inductor 8.8mΩ 7.1mm(L) x 6.8mm (W)x 3.2mm(H)
TDK
1
744 778 9001
1µH Inductor 12mΩ 7.3mm(L)x7.3mm(W)x3.2mm(H)
Wurth Elektronik
1
IHLP2525AH-01 1
1µH Inductor 17.5mΩ 6.47mm(L)x6.86mm(W)x1.8mm(H)
Vishay Dale
1
R1,R4
CRCW04021002F
10KΩ1% 0402 resistor
Vishay Dale
1
R2
CRCW04026651F
6.65kΩ 1% 0402 For 2.5V_OUT
CRCW04021242F
12.4kΩ 1% 0402 For 1.8 V_OUT
CRCW04022002F
20kΩ 1% 0402 For 1.5 V_OUT
CRCW04024022F
40.2kΩ 1% 0402 For 1.2 V_OUT
Open
For 1.0 V_OUT
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
1
R3
CRCW040210R0F
10Ω1% 0402 resistor
Vishay Dale
1
U1
MIC4720BML
2.0MHz 2A Buck Regulator
Micrel, Inc.
1
Notes:
1. TDK: www.tdk.com
2. Murata: www.murata.com
3. AVX: www.avx.com
4. Vishay: www.vishay.com
5. Wurth Elektronik: www.we-online.com
6. Micrel, Inc: www.micrel.com
May 2007
20
M9999-051707