Micrel Inc.

MIC2846A

April 2010

3

M9999-041210-D

Part Number

Mark

Code

LDO1

VOUT

LDO2

VOUT

Temperature Range

Package

MIC2846A-MFYMT

YPMF

2.8V

1.5V

–40°C to +125°C

14-Pin 2.5mm x 2.5mm TMLF

®

MIC2846A-MGYMT

YPMG

2.8V

1.8V

–40°C to +125°C

14-Pin 2.5mm x 2.5mm TMLF

®

MIC2846A-PGYMT

YPPG

3.0V

1.8V

–40°C to +125°C

14-Pin 2.5mm x 2.5mm TMLF

®

MIC2846A-PPYMT

YPPP

3.0V

3.0V

–40°C to +125°C

14-Pin 2.5mm x 2.5mm TMLF

®

MIC2846A-SCYMT

YPSC

3.3V

1.0V

–40°C to +125°C

14-Pin 2.5mm x 2.5mm TMLF

®

Note:

1. Thin MLF

2. Thin MLF

3. Contact Micrel for other output voltages.

Pin Configuration

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Voltage Input. Connect at least 1µF ceramic capacitor between VIN and GND.

2

LDO2

Output of LDO2. Connect at least 1µF ceramic output capacitor.

3

EN2

Enable Input for LDO2. Active High Input. Logic High = On; Logic Low = Off; Do not leave floating.

4

DC

Enable input for LED driver. Can be used for dimming using the digital control interface. See Digital

Dimming Interface for details. Do not leave floating.

5

RSET

An internal 1.27V reference sets the nominal maximum LED current. Example, apply a 20.5kΩ

resistor between RSET and GND to set LED current to 20mA at 100% duty cycle.

6

D1

LED1 driver. Connect LED anode to VIN and cathode to this pin.

7

D2

LED2 driver. Connect LED anode to VIN and cathode to this pin.

8

D3

LED3 driver. Connect LED anode to VIN and cathode to this pin.

9

GND

Ground.

10

D4

LED4 driver. Connect LED anode to VIN and cathode to this pin.

11

D5

LED5 driver. Connect LED anode to VIN and cathode to this pin.

12

D6

LED6 driver. Connect LED anode to VIN and cathode to this pin.

13

EN1

Enable Input for LDO1. Active High Input. Logic High = On; Logic Low = Off; Do not leave floating.

14

LDO1

Output of LDO1. Connect at least 1µF ceramic output capacitor.

EPAD

HS PAD

Heat sink pad. Not internally connected. Connect to ground.