August 2004

3

MIC2214

MIC2214

Micrel

1

2

3

4

12

16

15

14

13

8

7

6

5

11

10

9

EN1

EN2

BYP

ADJ1

POR

DRV

ADJ

NGND

16-Pin 4mm

××××× 4mm MLF™ (ML)

Pin Description

Pin Number

Pin Number

Pin Name

Pin Function

MLF-10 (3x3)

MLF-16 (4x4)

1

15, 16

VIN

Supply Input: (VIN1 and VIN2 are internally tied together)

2

–

EN

Enable Input: Enables both regulator outputs. Active High. High = on, low =

off. Do not leave floating.

–

1

EN1

Enable Input to Regulator 1: Enables regulator 1 output. Active high input.

High = on, low = off. Do not leave floating.

–

2

EN2

Enable Input to Regulator 2: Enables regulator 2 output. Active high input.

High = on, low = off. Do not leave floating.

3

3

CBYP

Reference Bypass: Connect external 0.01

µF to GND to reduce output noise.

May be left open.

4

5

SW

Active high signal drives open-drain N-Channel MOSFET.

–

4

ADJ1

Adjust Input (Regulator 1): Connect feedback resistors to program the

output voltage for the regulator.

5

6

SET

Delay Set Input: Connect external capacitor to GND to set the internal delay

for the POR output. When left open, there is no delay. This pin cannot be

grounded.

6

7,8

GND

Ground: Connect externally to exposed pad.

–

9

NGND

Ground for the open-drain driver. Tied to the source of the NMOSFET. Tied

to GND internally.

–

10

ADJ2

Adjust Input (Regulator 2): Connect feedback resistors to program the

output voltage for the regulator.

7

11

DRV

Open-Drain Output: Capable of sinking 150mA.

8

12

POR

Power-On Reset Output: Open-drain output. Active low indicates an output

undervoltage condition on regulator 2.

9

13

VOUT2

Output of Regulator 2: 300mA output current

10

14

VOUT1

Output of Regulator 1: 150mA output current

EP

EP

GND

Ground: Internally connected to the exposed pad. Connect externally to

ground pin.

1

VIN

EN

BYP

SW

SET

VOUT2

POR

DRV

GND

9

8

7

6

2

3

4

5

10-Pin 3mm

××××× 3mm MLF™ (ML)

(Top View)

Pin Configuration