Power Management ICs | MB39C308 | MB39C316 | MB39A145/138 | MB39C022 | MB39C313 |
4-Channel DC/DC Converter IC for LCD Panels
MB39C313
MB39C313
A system power management IC capable of supplying the four types of voltages required in LCD panels in a single chip.
This product is a system power management IC with a built-in 4-channel power management control block.
It consists of a 2-channel DC/DC converter with switching FET for large current operation and a 2-channel charge pump type DC/DC converter. The DC/DC converter block offers excellent stability against input voltage fluctuations with the input voltage feed-forward method.
The output voltage in the charge pump circuit block can be set by an external resistor using the output voltage feedback method. This product contributes to a reduction in the parts cost as a result of the built-in switching FET and phase compensator.
System configuration of LCD panel
Output features
| Power supply voltage (V) |
Output features | ||||||
| Pin name | Structure | Error amplifier threshold voltage (V) |
Accuracy (%) |
Output voltage (V) |
FET | Output current (A) |
|
| +8 to +14 | Vlogic | Buck DC/DC | 1.213 | 1.5 | 1.8 to 3.3 | Internal | 1.5 |
| Vs | Boost DC/DC | 1.146 | 0.9 | 18.1 (max) | 1.5 (*1) | ||
| VGL | Invert charge pump | 0±36mV | - | - | - | 50mA | |
| VGH | Boost charge pump | 1.213 | 2.1 | 50mA | |||
*1: Input voltage = 12V, Output voltage = 15V
