MIC5159 Datasheet, PDF (19/23 Pages) Micrel Semiconductor – PROGRAMMABLE CURRENT LIMIT UCAP LDO REGULATOR CONTROLLER

MIC5159
Schematic H
Input/Output Combination Examples
Input
Output
Maximum Current
3.3V
3.3V
3.3V
3.3V
2.5V
2.5V
2.5V
1.8V
2.5V
1.8V
1.5V
1.25V
1.8V
1.5V
1.25V
1.25V
2.5A
1.25A
1A
0.75A
2.5A
2A
1.5A
3A
Q1
V_IN
SUB15P01-52
V_OUT
m^C1
10 F
6.3V
U1 MIC5159BM6
5
4
EN GATE
1 _IN
FB ⁶
3 _IS
GND 2
W W ^R3
49.9
R1
10k
R2*
m ^C2
10 F
6.3V
GND
GND
Application Circuit
Bill of Materials
Item
C1
C2
R1
R2
R3
Q1
U1
Part Number
GRM40 X7R 106 6.3
C2012X5RR0J106M
CRCW08051002
CRCW08059761
CRCW08052152
CRCW08054642
CRCW08058253
CRCW080549R9 F
SUB15P01-52
MIC5159BM6
Manufacturer
Murata⁽¹⁾
TDK⁽²⁾
Vishay Dale⁽³⁾
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Dale
Vishay Siliconix⁽⁵⁾
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
5. Vishay Siliconix tel: [phone]
6. Micrel, Inc. tel: [phone]
Micrel
6
5
Max. Power
4
Dissipation at 60°C T_A
3
2
Dropout
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
SUB15P01-52 SOA
Description
Qty.
10µF, 6.3V Ceramic MLCC, Size 0805
1
10µF, 6.3V Ceramic MLCC, Size 0805
1
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
1
Programmable Current Limit µCap LDO Regulator
1
April 2004
19
M9999-041204