MIC3287

Micrel, Inc.

M9999-010306

2

January 2006

Pin Configuration

FB GND

EN

VIN

SW

3

1

5

2

4

FB GND

EN

VIN

SW

3

1

6

2

4

5

OVP

TSOT-23-5 (YD5)

TSOT-23-6 (YD6)

1

VIN

OVP

EN

AGND

8 PGND

SW

NC

FB

7

6

5

2

3

4

EP

8-Pin 2mm x 2mm MLF™ (YML)

Ordering Information

Part Number

Marking

Code

Overvoltage

Protection

Junction

Temp. Range

Package

Lead Finish

MIC3287YD5

WGAA

N/A

-40°C to +125°C

Thin SOT-23-5

Lead Free

MIC3287-24YD6

WHAA

24V

-40°C to +125°C

Thin SOT-23-6

Lead Free

MIC3287-24YML

WLA

24V

-40°C to +125°C

8-Pin 2mm x 2mm MLF

Lead Free

Ordering Information

Pin Number

TSOT-23-5

Pin Number

TSOT-23-6

Pin Number

8-Pin MLF

Pin Name Pin Function

1

1

7

SW

Switch Node (Input): Internal power bipolar collector.

2

2

4

AGND

Analog Ground (Return): Ground.

2

2

8

PGND

Power Ground (Return): Ground.

3

3

5

FB

Feedback (Input): Output voltage sense node. Connect the cathode of the

LED to this pin. A resistor from this pin to ground sets the LED current.

4

4

3

EN

Enable (Input): Logic high enables regulator. Logic low shuts down regu-

lator.

5

6

1

VIN

Supply (Input): 2.8V to 5.5V for internal circuitry.

—

5

2

OVP

Overvoltage Protection (Input): Connect to the output.

—

—

6

NC

Not Connected

—

—

EP

EP

Exposed Backside Pad: Connect to ground.