MIC4724 Datasheet, PDF (2/19 Pages) Micrel Semiconductor – 3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input

Micrel, Inc.
Ordering Information
Part Number
Voltage
Temperature Range
Package
MIC4724YMME
Adj.
–40° to +125°C
10-Pin ePAD MSOP
Note
This is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
MIC4724
Lead Finish
Pb-Free
Pin Configuration
SW 1
VIN 2
SGND 3
BIAS 4
FB 5
10 SW
9 VIN
8 PGND
7 PGOOD
EP
6 EN
10-Pin ePAD MSOP (MME)
Pin Description
Pin
Number
1, 10
2, 9
8
3
4
5
6
7
EP
Pin
Name
SW
VIN
PGND
SGND
BIAS
FB
EN
PGOOD
ePAD
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.
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.
June 2008
2
M9999-062408-A