mic4723yml Micrel Semiconductor, mic4723yml Datasheet - Page 2

• Manufacturer Part Number: mic4723yml
• Description: Mic4723 3a 2mhz Integrated Switch Buck Regulator
• Manufacturer: Micrel Semiconductor

Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
January 2008
Pin Number
MLF-12
1, 12
2, 11
7, 10
EP
3
4
5
6
8
9
Note
MLF
PGND
SGND
BIAS
®
SW
VIN
FB
is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
MIC4723YMME
MIC4723YML
Part Number
12-Pin 3mm x 3mm MLF (ML)
Pin Number
1
2
3
4
5
6
MSOP-10
1, 10
2, 9
EP
—
8
3
4
5
6
7
EP
Pin Name
PGOOD
PGND
SGND
BIAS
GND
SW
VIN
NC
EN
FB
Voltage
Adj.
Adj.
12
11
10
9
8
7
SW
VIN
NC
PGOOD
EN
NC
Pin Function
Switch (Output): Internal power P-Channel MOSFET output switch.
Supply Voltage (Input): Supply voltage for the source of the internal P-channel
MOSFET and driver. Requires bypass capacitor to GND.
Power Ground. Provides the ground return path for the high-side drive current.
Signal (Analog) Ground. Provides return path for control circuitry and internal
reference.
Internal circuit bias supply. Must be bypassed with a 0.1µF ceramic capacitor to
SGND.
Feedback. Input to the error amplifier, connect to the external resistor divider network
to set the output voltage.
No Connect. Not internally connected to die. This pin can be tied to any other pin if
desired.
Enable (Input). Logic level low, will shutdown the device, reducing the current draw to
less than 5µA.
Power Good. Open drain output that is pulled to ground when the output voltage is
within ±7.5% of the set regulation voltage.
Connect to ground.
Temperature Range
–40° to +125°C
–40° to +125°C
2
10-Pin ePAD MSOP
SGND
BIAS
12-Pin 3x3 MLF
VIN
SW
FB
Package
10-Pin ePAD MSOP (MME)
1
2
3
4
5
®
EP
Lead Finish
Pb-Free
Pb-Free
10 SW
9
8
7
6
VIN
PGND
PGOOD
EN
M9999-011808-D
MIC4723