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 POWER SUPPLY ICs
ICS
0.6A step-down DC-DC convertor IC
Monolithic IC MM3472
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[Outline]
This IC is a synchronous rectifying step-down DC/DC converter which is foucused on space minimizing design, high oscillation frequency (2.25MHz) and high efficiency by fewer external components (1 coil and 2 capacitors) in order to meet miniaturization and low power consumption.
Package is realizes space reduction of the mount area by mounting to the small SOT-26A and SSON-6L.


[Features]
1. 
Input Voltage Range
2.0V ~ 5.5V
2. 
Output Voltage Range
0.8V ~ 3.3V
3. 
FB Voltage (PWM mode)
VFB±1.5%
4. 
FB Voltage (PFM mode)
VFB±2%
5. 
Output Current
600mA
6. 
Oscillation Frequency
2.25MHz (typ.)
7. 
Quiecent Current (Not swtching)
11µA (typ.)
8. 
Efficiency (VIN=3.6V, VOUT=1.8V)
Io=0.01mA : 25%
Io=100mA : 90%
9. 
Protect Function
UVLO, Soft start, Current limit, Thermal shutdown
10.
PWM/PFM Control
Automatic


[Package]


[Applications]
1. Mobile Phone
2. Digital Still Cameras
3. Battery-Operating Devices

[Pin Assignment]

SOT-26A
(TOP VIEW)

SSON-6L
(TOP VIEW)


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[NOTE]
-Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
-The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
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