MM3558 is 2ch Synchronous Step-down DC/DC Converter + 1ch LDO + 2ch P-GOOD manufactured by MITSUMI.
| Part Number | Description |
|---|---|
| MM3556 | Fuel Gauge |
| MM3508A | 2 to 4cell Li-ion/Li-polymer battery Secondary protection |
| MM3508B | 2 to 4cell Li-ion/Li-polymer battery Secondary protection |
| MM3508C | 2 to 4cell Li-ion/Li-polymer battery Secondary protection |
| MM3511 | One-cell li-ion/li-polymer battery protection |
The ripple of the input current is decreased so that the DC/DC converter of 2ch may work by the opposite phase, and a low noise is achieved. Because the output voltage can be set by external resistance, it is possible to use it according to various output conditions.
