MIC2245 Datasheet, PDF (13/14 Pages) Micrel Semiconductor – 4MHz PWM Synchronous Buck Regulator with LDO Standby Mode

Micrel, Inc.
Typical Application Circuit with Bill of Materials (BOM)
MIC2245
Adjustable Output
Item
C1
C4
C2
C3
L1
R1⁽⁷⁾
R2⁽⁷⁾
Part Number
0603D105MAT2A
GRM185R60J105KE21D
C1608X5R1A105K
C1608X5R0J475M
GRM188R60J475KE19D
VJ0603Y475KXQCW1BC
06036D475MAT2A
C1005X5R0J104M
04026D104MAT2A
GRM155R60J104K
VJ0402A820KXQCW1BC
C1005COG1H820J
DO2010-102ML
GLF2518T1R0M
CRCW04021003F
CRCW04026652F
CRCW04021243F
CRCW04022003F
CRCW04024993F
R3 CRCW040220R5F
U1 MIC2245YML
Notes:
1. AVX: www.avxcorp.com
2. Murata: www.murata.com
3. TDK: www.tdk.com
4. Vishay: www.vishay.com
5. Coilcraft: www.coilcraft.com
6. Micrel, Inc.: www.micrel.com
7. For Adjustable Version Only
Description
1µF 6.3V X5R 0402 Ceramic Capacitor
1µF 10V X5R 0402 Ceramic Capacitor
4.7µF 6.3V X5R 0603 Ceramic Capacitor
0.1µF 6.3V X5R 0402 Ceramic Capacitor
0.1µF 6.3V X7R 0402 Ceramic Capacitor
82pF X7R 0402 Ceramic Capacitor
82pF COG 0402 Ceramic Capacitor
1µH Inductor
1µH Inductor
100kΩ 1% 0402 Resistor
66.5kΩ 1% 0402 Resistor for 2.5V_OUT
124kΩ 1% 0402 Resistor for 1.8V_OUT
200kΩ 1% 0402 Resistor for 1.5V_OUT
499kΩ 1% 0402 Resistor for 1.2V_OUT
Open
for 1.0V_OUT
20.5Ω 1% 0402 Resistor
4MHz PWM Step-Down Converter/LDO
January 2006
13
Manufacturer
Qty
AVX
Murata
1
TDK
TDK
Murata
1
Vishay
AVX
Murata
AVX
1
TDK
Vishay
1
TDK
Colicraft
1
TDK
Vishay
1
Vishay
Vishay
Vishay
1
Vishay
Vishay
1
Micrel
1
M9999-012406
www.micrel.com