MIC23051_09 Datasheet, PDF (2/13 Pages) Micrel Semiconductor – 4MHz PWM Buck Regulator with HyperLight Load and Voltage Scaling

Micrel, Inc.
Ordering Information
Part Number
Marking
Voltage
Scaled to
with VSC low
Nominal
Output
Voltage
Junction
Temp. Range
Package
MIC23051-CGYML
MIC23051-C4YML
MIC23051-16YML
MIC23051-945YML
JCG
JC4
J16
945
1.0V
1.0V
1.15V
0.95V
1.8V
1.2V
1.40V
1.25V
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
8-Pin 2x2 MLF^®
8-Pin 2x2 MLF^®
8-Pin 2x2 MLF^®
8-Pin 2x2 MLF^®
Note
1. Other output voltage combinations (0.72 to 3.3V) available, contact Micrel Marketing for details.
2. MLF^® is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
3. Over bar symbol ( ¯¯ ) may not be to scale.
MIC23051
Lead Finish
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pin Configuration
SW 1
EN 2
VSC 3
SNS 4
8 PGND
7 VIN
6 AGND
5 CFF
8-Pin 2mm x 2mm MLF^®
(Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
SW
EN
VSC
SNS
CFF
AGND
VIN
PGND
Pin Name
Switch (Output): Internal power MOSFET output switches.
Enable (Input). Logic low will shut down the device, reducing the quiescent
current to less than 4µA. Do not leave floating.
Voltage scaling pin (input): A low on this pin will scale the output voltage
down to specified level. Do not leave floating.
Connect to V_OUT to sense output voltage.
Feed Forward Capacitor. Connect a 560pF capacitor.
Analog Ground.
Supply Voltage (Input): Requires bypass capacitor to GND.
Power Ground.
July 2009
2
M9999—070809-F