Micrel, Inc.

MIC2289

July 2007

2

M9999-071007

Ordering Information

Part Number

Marking

Code

Overvoltage

Protection

Junction

Temp. Range

Package

Lead Finish

MIC2289-24YD6

SM24

24V

–40°C to +125°C

6-Pin Thin SOT-23

Pb-Free

MIC2289-15BML

SNA

15V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Standard

MIC2289-15YML

SNA

15V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Pb-Free

MIC2289-24BML

SNB

24V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Standard

MIC2289-24YML

SNB

24V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Pb-Free

MIC2289-34BML

SNC

34V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Standard

MIC2289-34YML

SNC

34V

–40°C to +125°C

8-Pin 2mm x 2mm MLF

®

Pb-Free

Note

: Marking bars may not be to scale.

Pin Configuration

VOUT

VIN

EN

GND SW

FB

3

1

6

2

45

VOUT

VIN

EN

AGND

PGND

SW

FB

NC

1

2

3

4

8

7

6

5

EP

6- Pin Thin SOT-23 (D6)

8-Pin MLF

(Top View)

Fused Lead Frame

Pin Description

Pin Number

TSOT-23-6

Pin Number

MLF

Pin Name

Pin Name

1

7

SW

Switch node (Input): Internal power BIPOLAR collector.

2

―

GND

Ground (Return): Ground.

3

6

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

3

EN

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

down regulator.

5

2

VIN

Supply (Input): 2.7V to 8V for internal circuitry.

6

1

VOUT

Output Pin and Overvoltage Protection (Output): Connect to the

output capacitor and LEDs.

―

4

AGND

Analog ground.

―

8

PGND

Power ground.

―

5

NC

No connect (no internal connection to die).

―

EP

GND

Ground (Return): Exposed backside pad.