MIC2145(2003) Просмотр технического описания (PDF) - Micrel

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MIC2145
(Rev.:2003)

High Efficiency 2.5W Boost Converter

Micrel 

MIC2145

Pin Configuration

EN 1

SS 2

RSET 3

PGND 4

8 SGND

7 FB

6 VDD

5 SW

8-Lead MSOP (MM)

Micrel

EN 1

SS 2

RSET 3

PGND 4

PGND 5

10 SGND

9 FB

8 VDD

7 SW

6 SW

3mm×3mm MLF-10L (ML)

Pin Description

Pin Number

MSOP

1

Pin Number

MLF

1

2

2

3

3

4

4, 5

5

6, 7

6

8

7

9

8

10

Pin Name

EN

SS

RSET

PGND

SW

VDD

FB

SGND

Pin Function

Enable (Input): Logic high (≥1.5V) enables regulator. Logic low (≤0.7V)

shuts down regulator. Do not float.

Soft Start Capacitor (External Component): Connect external capacitor to

ground to control the rise time of the output voltage.

Current Limit (External Component): Sets peak current limit of the internal

power MOSFET using an external resistor.

Power Ground (Return): Internal power MOSFET source.

Switch Node (Input): Internal power MOSFET drain.

Supply (Input): +2.4V to +16V for internal circuitry.

Feedback (Input): Output voltage sense node.

Small Signal Ground (Return): Ground

MIC2145

2

May 2003

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