This data sheet describes the design, operation, and test of the ADP1821 standard evaluation board. In all tests, the board is operated from an input voltage range of 9 V to 15 V, and generates up to 10 A at VOUT = 1.8 V. The switching frequency is fixed at 600 kHz.
The ADP1821 includes an adjustable soft start to limit input inrush current and facilitate sequencing. It provides current limit and short-circuit protection, and a power-good logic output.
The ADP1821 is well suited for a wide range of power applications, such as DSP and processor core power in telecom, medical imaging, high performance servers, and industrial applications.
* Based on obsolete board ADP1821-EVAL
| Manufacturer | Analog Devices Inc. |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.8 V
|
| Current Out |
10 A
|
| Voltage In |
9 ~ 15 V
|
| Efficiency @ Conditions |
>87%, 9V in, 1.8V @ 3 ~ 10 A
>85%, 12V in, 1.8V @ 4 ~ 10 A |
| Voltage Out Range |
0.6 ~ 85% Vin
|
| Features |
Current Limit (Adj. or Fixed)
Over Voltage Protection Power Good Output Reverse Polarity Protection Short Circuit Protection Shutdown, Enable, Standby Soft Start Synchronizable Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
600 kHz
|
| Standby Current [Typical] | |
| Quiescent Current [Typical] |
1 mA
|
| Component Count + Extras |
37 + 4
|
| Internal Switch |
No
|
| Design Author |
Analog Devices
|
| Application / Target Market |
Computers
|
| Standby Current [Maximum] |
10 µA
|
| Quiescent Current [Maximum] |
2 mA
|
| Main I.C. Base Part |
ADP1821
|
| Date Created By Author | |
| Date Added To Library | 2022-01 |
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