The ADP2302/ADP2303 are 2 A/3 A, 20 V, nonsynchronous step-down, dc-to-dc regulators with an integrated power MOSFET in a SOIC package with an exposed paddle. The ADP2302/ ADP2303 evaluation boards are complete buck regulator solutions that allow users to evaluate the performance of the regulators.
The ADP2302/ADP2303 integrated soft-start circuitry prevents inrush current at power-up. The power-good output indicates that the output voltage is regulated within tolerance, and it can be used to sequence devices that have an enable input. The precision enable feature allows the part to be easily sequenced from external supplies. Other key features include undervoltage lockout (UVLO), output overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP). Full details on the ADP2302/ADP2303 are provided in the ADP2302/ADP2303 data sheet available from Analog Devices, Inc., which should be consulted in conjunction with this user guide.
Manufacturer | Analog Devices Inc. |
---|---|
Category | AC/DC and DC/DC Conversion |
Sub-Category | DC/DC SMPS - Single Output |
Eval Board Part Number | ADP2303-EVALZ-ND |
Eval Board Supplier | Analog Devices Inc. |
Eval Board |
Board not Stocked
|
Topology |
Step Down
|
Outputs and Type |
1 Non-Isolated
|
Voltage Out: Factory Set |
3.3 V
|
Current Out |
3 A
|
Voltage In |
3 ~ 20 V
|
Efficiency @ Conditions |
>88%, 12V in, 5V @ 0.4 ~ 3 A
>84%, 12V in, 3.3V @ 0.5 ~ 3 A >80%, 12V in, 2.5V @ 0.4 ~ 3 A >75%, 12V in, 1.8V @ 0.4 ~ 3 A >71%, 12V in, 1.5V @ 0.3 ~ 3 A |
Voltage Out Range |
0.8 ~ Vin (-2.1V)
|
Features |
Light Load Mode
Over Current Protection Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
Switching Frequency |
700 kHz
|
Standby Current [Typical] |
24 µA
|
Quiescent Current [Typical] |
720 µA
|
Component Count + Extras |
12 + 8
|
Internal Switch |
Yes
|
Design Author |
Analog Devices
|
Application / Target Market |
Medical
Point of Load (PoL) Power: Industrial Power Set-Top Boxes Telecom |
Standby Current [Maximum] |
45 µA
|
Quiescent Current [Maximum] |
950 µA
|
Main I.C. Base Part |
ADP2303
|
Date Created By Author | |
Date Added To Library | 2013-07 |