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MIC5159 Datasheet(PDF) 21 Page - Micrel Semiconductor

Part # MIC5159
Description  Programmable Current Limit 關Cap LDO Regulator Controller
PDF  23 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC5159 Datasheet(HTML) 21 Page - Micrel Semiconductor

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Micrel, Inc.
MIC5159
June 2006
21
M9999-062706
Schematic J
Input/Output Combination Examples
Input
Output
Maximum Current
3.3V
2.5V
7.5A
3.3V
1.8V
3.75A
3.3V
1.5V
3A
3.3V
1.25V
2.75A
2.5V
1.8V
8A
2.5V
1.5V
6A
2.5V
1.25V
4.5A
1.8V
1.25V
9.5A
U1 MIC5159BM6/YM6
0
1
2
3
4
5
6
02468
10
12
OUTPUT CURRENT (A)
Dropout
Max. Power
Dissipation at 60°C TA
Application Circuit
SUB15P01-52 x3 SOA
Bill of Materials
Item
Part Number
Manufacturer
Description
Qty.
C1
GRM40 X7R 106 6.3
Murata(1)
10µF, 6.3V Ceramic MLCC, Size 0805
1
C2012X5RR0J106M
TDK(2)
10µF, 6.3V Ceramic MLCC, Size 0805
C2, C3
GRM42-2 X5R 226K 6.3
Murata
22µF, 6.3V Ceramic MLCC, Size 1210
1
C3225X5R1A226M
TDK
22µF, 10V Ceramic MLCC, Size 1210
R1
CRCW08051002
Vishay Dale(3)
10kΩ Resistor, Size 0805
1
R2
CRCW08059761
Vishay Dale
Output Voltage:2.5V; 9.76kΩ Resistor, Size 0805(4)
1
CRCW08052152
Vishay Dale
Output Voltage:1.8V; 21.5kΩ Resistor, Size 0805(4)
1
CRCW08054642
Vishay Dale
Output Voltage:1.5V; 46.4kΩ Resistor, Size 0805(4)
1
CRCW08058253
Vishay Dale
Output Voltage:1.25V; 825kΩ Resistor, Size 0805(4)
1
R3
CRCW080549R9 F
Vishay Dale
49.9Ω Resistor, Size 0805
1
Q1,Q2
Q3
SUB15P01-52
Vishay Siliconix(5)
P-Channel MOSFET TO-263
3
U1
MIC5159BM6/YM6
Micrel, Inc.
(6)
Programmable Current Limit µCap 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
−
=
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
5. Vishay Siliconix Tel: 402-563-6866
6. Micrel, Inc. Tel: 408-944-0800



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