MP158 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR

MP158 Rev. 1.0

www.MonolithicPower.com

12

10/17/2014

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© 2014 MPS. All Rights Reserved.

APPLICATION INFORMATION

Table 1. Common Topologies Using MP158

Topology

Circuit Schematic

Features

High-Side

Buck

MP158

1

2

3

4

5

DRAIN

VCC

FB

SOURCE

SOURCE

Vin

Vo

1. No-isolation,

2. Positive output

3. Low cost

4. Direct feedback

High-Side

Buck-Boost

MP158

1

2

3

4

5

DRAIN

VCC

FB

SOURCE

SOURCE

Vin

Vo

1. No-isolation,

2. Negative output

3. Low cost

4. Direct feedback

Boost

MP158

1

2

3

4

5

DRAIN

VCC

FB

SOURCE

SOURCE

Vin

Vo

1. No-isolation,

2. Positive output

3. Low cost

4. Direct feedback

Flyback

*

*

T

V

in

+

*

DRAIN

VCC

FB

SOURCE

SOURCE

MP158

Vo

1

2

3

4

5

1. Isolation,

2. Positive output

3. Low cost

4. Indirect feedback