The EVB_RT7243GQW is a high efficiency, monolithic synchronous step-down DC/DC converter evaluation board that can deliver up to 6A output current from a 4.5V to 18V input supply.
The RT7243 current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during startup. Fault condition protections include output under-voltage protection, output over-voltage protection, and over temperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.
The RT7243 is available in WQFN-14AL 3.5x3.5 package.
| Manufacturer | Richtek USA Inc. |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | EVB_RT7243GQW-ND |
| Eval Board Supplier | Richtek USA Inc. |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1 V
|
| Current Out |
6 A
|
| Voltage In |
4.5 ~ 18 V
|
| Efficiency @ Conditions |
>95%, 12V in, 5V @ 1 ~ 3 A
>90%, 12V in, 3.3V @ 0.5 ~ 6 A >80%, 12V in, 1.2V @ 1 ~ 4.5 A |
| Voltage Out Range |
0.8 ~ 8 V
|
| Features |
Current Limit (Adj. or Fixed)
Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Synchronizable Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
500 kHz
|
| Standby Current [Typical] |
3 µA
|
| Quiescent Current [Typical] |
600 µA
|
| Component Count + Extras |
18 + 25
|
| Internal Switch |
Yes
|
| Design Author |
Richtek USA Inc.
|
| Application / Target Market |
Point of Load (PoL)
Portable Devices Power: Industrial Power |
| Standby Current [Maximum] |
9 µA
|
| Quiescent Current [Maximum] |
1 mA
|
| Main I.C. Base Part |
RT7243
|
| Date Created By Author | 2015-06 |
| Date Added To Library | 2018-08 |
France
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