The IR3621 IC combines a Dual synchronous Buck controller, providing a cost-effective, high performance and flexible solution. The IR3621 can be configured in 2-independent output or as a 2-phase mode. The 2-phase configuration is ideal for high current applications. The IR3621 features 180 degrees out of phase operation which reduces the required input/output capacitance.
Other key features offered by this device include two independent programmable soft starts, PreBias start up, programmable switching frequency up to 500KHz per phase, external frequency synchronization and under voltage lockout for proper start up. The current limit is provided by sensing the lower MOSFET's on-resistance for optimum cost and performance.
| Manufacturer | Infineon Technologies |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Multi Output |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
2 Non-Isolated
|
| Voltage Out: Highest Current First |
1.5V, 2.5V
|
| Current Out |
10A per Channel
|
| Voltage In |
12 V
|
| Efficiency @ Conditions |
>85%, 12V in, 2.5V @ 6 ~ 10 A
>80%, 12V in, 1.8V @ 6 ~ 10 A |
| Voltage Out Range |
- Not Given
|
| Features |
Current Limit (Adj. or Fixed)
Soft Start |
| Switching Frequency |
400 kHz
|
| Standby Current [Typical] | |
| Quiescent Current [Typical] |
15 mA
|
| Component Count + Extras |
58 + 21
|
| Internal Switch |
No
|
| Design Author |
Infineon Technologies
|
| Application / Target Market |
Computers
Point of Load (PoL) Telecom |
| Standby Current [Maximum] | |
| Quiescent Current [Maximum] |
25 mA
|
| Main I.C. Base Part |
IR3621
|
| Date Created By Author | |
| Date Added To Library | 2023-12 |
Italy
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