Micrel, Inc.
MIC5159
June 2006
13
M9999-062706
Schematic B
Input/Output Combination Examples
Input
Output
Maximum Current
1.8V
1.5V
4A
U1 MIC5159BM6/YM6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
Dropout
Max. Power
Dissipation at 60癈 T
A
Application Circuit
Si3445DV x2 SOA
Bill of Materials
Item
Part Number
Manufacturer
Description
Qty.
GRM40 X7R 106 6.3
Murata
(1)
10礔, 6.3V Ceramic MLCC, Size 0805
1
C1
C2012X5RR0J106M
TDK
(2)
10礔, 6.3V Ceramic MLCC, Size 0805
GRM42-2 X5R 226K 6.3
Murata
22礔, 6.3V Ceramic MLCC, Size 1210
1
C2
C2012X5RR0J106M
TDK
22礔, 10V Ceramic MLCC, Size 1210
R1
CRCW08051002
Vishay Dale
(3)
10k& Resistor, Size 0805
1
CRCW08059761
Vishay Dale
Output Voltage:2.5V; 9.76k& Resistor, Size 0805
(4)
1
CRCW08052152
Vishay Dale
Output Voltage:1.8V; 21.5k& Resistor, Size 0805
(4)
1
CRCW08054642
Vishay Dale
Output Voltage:1.5V; 46.4k& Resistor, Size 0805
(4)
1
R2
CRCW08058253
Vishay Dale
Output Voltage:1.25V; 825k& Resistor, Size 0805
(4)
1
R3
CRCW080549R9 F
Vishay Dale
49.9& Resistor, Size 0805
1
Q1, Q2 Si3445DV
Vishay Siliconix
(5)
P-Channel MOSFET TSOP-6
2
U1
MIC5159BM6/YM6
Micrel, Inc.
(6)
Programmable Current Limit 礐ap LDO Regulator
1
Notes:
1. Murata Tel: 949-916-4000
2. TDK Tel: 1-888-835-6646
3. Vishay Dale Tel: 402-563-6866
4. To calculate other output voltage values:
1
1.235
OUT
V
R1
R2
=
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
5. Vishay Siliconix Tel: 402-563-6866
6. Micrel, Inc. Tel: 408-944-0800
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