Main Power Supply Controller
This datasheet includes multiple variants, all published together in a single manufacturer document.
| Part number | RT8243B |
|---|---|
| Manufacturer | Richtek |
| File Size | 306.74 KB |
| Description | Main Power Supply Controller |
| Datasheet | RT8243B RT8243A Datasheet (PDF) |
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The RT8243A/B/C is a dual step down, Switch Mode Power Supply (SMPS) controller which generates logic supply voltages for battery powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V and also two fixed 5V/3.3V linear regulators. One of the controllers (LDO5) provides automatic switch over to the BYP1 input connected to the main SMPS1 output for maximized efficiency.
| Part Number | Description |
|---|---|
| RT8243A | Main Power Supply Controller |
| RT8243C | Main Power Supply Controller |
| RT8240A | High Efficiency Single Synchronous Buck PWM Controller |
| RT8240B | High Efficiency Single Synchronous Buck PWM Controller |
| RT8240C | High Efficiency Single Synchronous Buck PWM Controller |
| RT8241 | High Efficiency Single Synchronous Buck PWM Controller |
| RT8241E | High Efficiency Single Synchronous Buck PWM Controller |
| RT8248A | Complete DDR Memory Power Supply Controller |
| RT8249A | Dual-Channel Synchronous DC/DC Step-Down Controller |
| RT8249B | Dual-Channel Synchronous DC/DC Step-Down Controller |
