Delivers class leading low-consumption and high-efficiency. Contributes to improved conversion under light loads. Low-consumption, high-efficiency DC/DC converter IC MM3472
2014.07.01
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
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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
| Input voltage range | 2.0~5.5V |
|---|---|
| Output voltage range | 0.8~3.3V |
| FB voltage (PWM mode) | VFB±1.5% |
| FB voltage (PFM mode) | VFB±2% |
| Output current capacity | 600mA |
| Switching frequency | 2.25MHz typ. |
| Consumption current (with switching stopped) | 11µA typ. |
| Efficiency (VIN = 3.6 V, VOUT = 1.8 V) | Io=0.01mA @25% Io=100mA @90% |
| Protection function | UVLO, current limit, thermal shutdown |
| Control method | Automatic PWM/PFM switching control |
| Package | SSON-6L/SOT-26A |
| Dimensions | 2.0 × 2.0 × 0.75 mm (SSON-6L) 2.9 × 2.8 × 1.15 mm (SOT-26A) |
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