MIC2202-1.5YML Micrel Inc, MIC2202-1.5YML Datasheet - Page 9
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MIC2202-1.5YML
Manufacturer Part Number
MIC2202-1.5YML
Description
IC REG PWM SYNC 2MHZ 1.5V 10-MLF
Manufacturer
Micrel Inc
Type
Step-Down (Buck)r
Datasheet
1.MIC2202YMM.pdf
(19 pages)
Specifications of MIC2202-1.5YML
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.5V
Current - Output
600mA
Frequency - Switching
2MHz
Voltage - Input
2.3 ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
10-MLF®, QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
PWM control provides fixed frequency operation. By
maintaining a constant switching frequency, predictable
fundamental and harmonic frequencies are achieved.
Other methods of regulation, such as burst and skip
modes, have frequency spectrums that change with load
that can interfere with sensitive communication equip-
ment.
Synchronization
Sync_In allows the user to change the frequency from
2MHz up to 2.5MHz or down to 1.6MHz. This allows the
ability to control the fundamental frequency and all the
resultant harmonics. Maintaining a predictable frequency
Micrel, Inc.
March 2007
Figure 5. Master-Slave Synchronization Waveforms
Figure 4. Master-Slave Operation
VIN
SYNC_IN
SYNC_OUT
VIN
SYNC_IN
SYNC_OUT
“Master”
MIC2202
MIC2202
“Slave”
9
BIAS
BIAS
SW
SW
FB
FB
creates the ability to either shift the harmonics away
from sensitive carrier and IF frequency bands or to
accurately filter out specific harmonic frequencies.
The Sync_Out function pin allows for the ability to be
able to sync up multiple MIC2202s in a “daisy-chain”,
connecting Sync_Out to Sync_In of the other MIC2202.
Synchronizing multiple MIC2202s benefits much in the
same way as syncing up one MIC2202. All regulators
will run at the same fundamental frequency, resulting in
matched harmonic frequencies, simplifying designing for
sensitive communication equipment.
M9999-031907
MIC2202