■Overview
The <MM3472> delivers the world's leading class low-consumption and high-efficiency to meet market demands for longer continuous operating times and lower heat generation of cell phone devices.
The chief target devices are cell phones operating on 2 to 5 V power sources, and contribute to lower power consumption of the installed set.
§ Features
1. |
Low-consumption and high-efficiency (11µA consumption current).
50µW self-consumption power during standby.
Power savings of 20% or more compared to conventional products. |
2. |
PWM/PFM operation mode switching function.
A lower noise PWM fixed mode and light load high-efficiency PWM/PFM mode can be selected at will to suit the design concept of the installed set. |
3. |
Space efficient.
The package comes in a 2.0 × 2.0 mm SSON and SOT lineup.
An oscillating frequency of 2.25 MHz allows a more compact inductor to be selected. |
§ Main specifications
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|
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Input voltage range |
2.0~5.5V |
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Output voltage range |
0.8~3.3V |
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FB voltage (PWM mode) |
VFB±1.5% |
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FB voltage (PFM mode) |
VFB±2% |
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Output current capacity |
600mA |
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Switching frequency |
2.25MHz typ. |
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Consumption current (with switching stopped) |
11µA typ. |
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Efficiency (VIN = 3.6 V, VOUT = 1.8 V) |
Io=0.01mA @25%
Io=100mA @90% |
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Protection function |
UVLO, current limit, thermal shutdown |
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Control method |
Automatic PWM/PFM switching control |
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Package |
SSON-6L/SOT-26A |
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Dimensions |
2.0 × 2.0 × 0.75 mm (SSON-6L)
2.9 × 2.8 × 1.15 mm (SOT-26A) |
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