Micrel, Inc.

MIC49500

July 2007

3

M9999-071307

Ordering Information

Part Number*

Voltage

Junction Temperature Range

Package

Lead Finish*

MIC49500-0.9WR

0.9V

–40°C to +125°C

S-Pak-7

RoHS Compliant

MIC49500-1.2WR

1.2V

–40°C to +125°C

S-Pak-7

RoHS Compliant

MIC49500WR

ADJ

–40°C to +125°C

S-Pak-7

RoHS Compliant

MIC49500-0.9WU

0.9V

–40°C to +125°C

TO-263

RoHS Compliant

MIC49500-1.2WU

1.2V

–40°C to +125°C

TO-263

RoHS Compliant

MIC49500WU

ADJ

–40°C to +125°C

TO-263

RoHS Compliant

Other Voltage available. Contact Micrel for details.

* RoHS compliant with ‘high-melting solder’ exemption.

Pin Configuration

7 VSNS/ADJ

6NC

5 VOUT

4 GND

3 VIN

2 VBIAS

1EN

MIC49500WU (TO263-7)

MIC49500WR (S-Pak-7)

7 VSNS/ADJ

6NC

5 VOUT

4 GND

3 VIN

2 VBIAS

1EN

Pin Description

Pin Number

S-Pak-7

Pin Name

(Fixed)

Pin Name

(Adj)

Pin Function

1

EN

EN

Enable: TTL/CMOS compatible input. Logic high = enable,

logic low or open = shutdown.

2

VBIAS

VBIAS

Bias Supply: Bias supply input for powering all internal circuitry of

the device, except the main current path.

3

VIN

VIN

Input Voltage: Main Power Input Supply. Supplies main current

to output device.

4

GND

GND

Ground (TAB is connected to Ground).

5

VOUT

VOUT

Output Voltage: Regulator Output.

6

NC

No Connect

7

VSNS

-

Remote Voltage Sense: Connect direct the load to improve

regulation. Connect direct to pin 5 if not used.

7

-

ADJ

Adjust Input. Connect external resistor divider to program output

voltage.