Micrel, Inc.
MIC3287
Marking
Code
WGAA
WHAA
WLA
Overvoltage
Protection
N/A
24V
24V
Junction
Temp. Range
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
Ordering Information
Part Number
MIC3287YD5
MIC3287-24YD6
MIC3287-24YML
Package
Thin SOT-23-5
Thin SOT-23-6
8-Pin 2mm x 2mm MLF
Lead Finish
Lead Free
Lead Free
Lead Free
Pin Configuration
FB GND
SW
1
2
3
FB GND
SW
3
2
1
VIN 1
OVP
2
4
EN
5
VIN
4
5
6
EN
OVP
VIN
EN 3
AGND 4
EP
8
7
6
5
PGND
SW
FB
NC
TSOT-23-5
(YD5)
TSOT-23-6
(YD6)
8-Pin 2mm x 2mm MLF™ (YML)
Pin Description
Pin Number Pin Number
TSOT-23-5
TSOT-23-6
1
2
2
3
4
5
—
—
—
1
2
2
3
4
6
5
—
—
Pin Number
8-Pin MLF
7
4
8
6
3
1
2
5
EP
Pin Name
SW
AGND
PGND
FB
EN
VIN
OVP
NC
EP
Pin Function
Switch Node (Input): Internal power bipolar collector.
Analog Ground (Return): Ground.
Power Ground (Return): Ground.
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.
Enable (Input): Logic high enables regulator. Logic low shuts down regu-
lator.
Supply (Input): 2.8V to 6.5V for internal circuitry.
Overvoltage Protection (Input): Connect to the output.
Not Connected
Exposed Backside Pad: Connect to ground.
April 2010
2
M9999-042910
MICREL [ MICREL SEMICONDUCTOR ]
