MP156 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
APPLICATION INFORMATION
Table 1. Common Topologies Using MP156
Topology
Circuit Schematic
Features
DRAIN
VCC
1. No-isolation,
2. Positive output
3. Low cost
1
5
FB
MP156
2
3
4. Direct feedback
High-Side
Buck
SOURCE
SOURCE
4
Vin
Vo
DRAIN
VCC
1. No-isolation,
2. Negative output
3. Low cost
1
5
4
FB
MP156
2
3
4. Direct feedback
High-Side
SOURCE
SOURCE
Buck-Boost
Vin
Vo
1. No-isolation,
2. Positive output
3. Low cost
VCC
1
5
DRAIN
4. Direct feedback
Boost
FB
MP156
2
3
Vin
Vo
SOURCE
SOURCE
4
1. Isolation,
T
+
*
2. Positive output
3. Low cost
Vo
Vin
*
4. Indirect feedback
Flyback
DRAIN
VCC
1
5
MP156
FB
2
*
SOURCE
SOURCE
3
4
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
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