Micrel, Inc.

MIC5311

March 2006

2

M9999-032706

(408) 955-1690

Ordering Information

Part Number

Standard

Pb-Free

Output

Voltage*

Junction Temp. Range

Package

MIC5311-GMBML

MIC5311-GMYML

1.8V/2.8V

–40°C to +125°C

10-Pin 3×3 MLF™

MIC5311-DKBML

MIC5311-DKYML

1.85V/2.6V

–40°C to +125°C

10-Pin 3×3 MLF™

MIC5311-NLYML

2.85V/2.7V

–40°C to +125°C

10-Pin 3×3 MLF™

Note: *Other Voltage options available between 1.25V and 5V. Contact Micrel for details.

Pin Configuration

1

EN1

EN2

LOWQ

BYP

NC

NC

GND

9

8

7

6

2

3

4

5

MIC5311-xxBML (3x3)

Pin Description

Fixed

Pin Name

Pin Function

1

2

EN1

Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;

Do not leave floating

3

EN2

Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;

Do not leave floating

4

LowQ™

LowQ™ Mode. Active Low Input. Logic High = Full Power Mode; Logic Low = Light

Load Mode; Do not leave floating.

5

BYP

Reference Bypass: Connect external 0.01µF to GND to reduce output noise. May

be left open.

6

GND

Ground.

7

NC

8

NC

9

Output of regulator 2

10

Output of regulator 1

EP

GND

Ground. Internally connected to the Exposed Pad.