MIC5159 Datasheet, PDF (22/23 Pages) Micrel Semiconductor – PROGRAMMABLE CURRENT LIMIT UCAP LDO REGULATOR CONTROLLER

MIC5159
Schematic K
Input/Output Combination Examples
Input
Output
Maximum Current
3.3V
3.3V
3.3V
3.3V
2.5V
2.5V
2.5V
1.8V
1.8V
2.5V
1.8V
1.5V
1.25V
1.8V
1.5V
1.25V
1.5V
1.25V
10A
5A
4.25A
3.75A
11A
8A
6A
7A
13A
Micrel
V_IN
m^C1
10 F
6.3V
Q2
SUB15P01-52
Q4
SUB15P01-52
Q1
SUB15P01-52
Q3
SUB15P01-52
V_OUT
U1 MIC5159BM6
5 _{EN GATE} 4
1 _IN
FB ⁶
3 _IS
GND 2
W ^R3
49.9
W^R1
10k
R2*
m ^C2
22 F
6.3V/10V
m ^C3
22 F
6.3V/10V
6
5
Max. Power
4
Dissipation at 60°C T_A
3
2
Dropout
1
GND
Application Circuit
GND
0
0 2.5 5 7.5 10 12.5 15
OUTPUT CURRENT (A)
SUB15P01-52 x4 SOA
Bill of Materials
Item
C1
C2, C3
R1
R2
R3
Q1, Q2
Q3, Q4
U1
Part Number
GRM40 X7R 106 6.3
C2012X5RR0J106M
GRM42-2 X5R 226K 6.3
C3225X5R1A226M
CRCW08051002
CRCW08059761
CRCW08052152
CRCW08054642
CRCW08058253
CRCW080549R9 F
SUB15P01-52
Manufacturer
Murata⁽¹⁾
TDK⁽²⁾
Murata
TDK
Vishay Dale⁽³⁾
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Siliconix⁽⁵⁾
MIC5159BM6
Micrel, Inc.⁽⁶⁾
Notes:
1. Murata tel: [phone]
2. TDK tel: [phone]
3. Vishay Dale tel: [phone]
4. To calculate other output voltage values:
R2
=
R1


V_OUT
1.235


–
1
Description
Qty.
10µF, 6.3V Ceramic MLCC, Size 0805
1
10µF, 6.3V Ceramic MLCC, Size 0805
22µF, 6.3V Ceramic MLCC, Size 1210
2
22µF, 10V Ceramic MLCC, Size 1210
10kΩ Resistor, Size 0805
1
Output Voltage: 2.5V; 9.76kΩ Resistor, Size 0805⁽⁴⁾
1
Output Voltage: 1.8V; 21.5kΩ Resistor, Size 0805⁽⁴⁾
1
Output Voltage: 1.5V; 46.4kΩ Resistor, Size 0805⁽⁴⁾
1
Output Voltage: 1.25V; 825kΩ Resistor, Size 0805⁽⁴⁾ 1
49.9Ω Resistor, Size 0805
1
P-Channel MOSFET TO-263
4
Programmable Current Limit µCap LDO Regulator
1
5. Vishay Siliconix tel: [phone]
6. Micrel, Inc. tel: [phone]
M9999-041204
22
April 2004