Key facts
- Brand
- Analog Devices
- Model
- ADP1823
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-05
Start here
Analog Devices ADP1823 DC-DC Controller Handbook
The ADP1823 is a dual, interleaved, synchronous PWM buck controller that generates two independent output rails from an input of 3.7 V to 20 V, with a wide power‑stage input range of 1 V to 24 V. It offers fixed‑frequency operation at 300 kHz or 600 kHz, optional synchronization up to 1 MHz, and features such as soft‑start, thermal overload, current‑limit and reverse‑current protection.
This handbook provides the full specifications, absolute maximum ratings, functional block diagram, pin configuration and descriptions, typical performance characteristics, theory of operation, and layout guidelines. It also includes typical application circuits, tracking options for DDR termination, and ordering information for the 5 mm × 5 mm, 32‑lead LFCSP package.
Analog Devices ADP1823 specifications
| Input Voltage Range (with internal regulator) | 5.5‑20 V |
|---|---|
| Quiescent Current (no load) | 3 mA typical |
| Shutdown Current | 10‑20 µA |
| Oscillator Frequency (300 kHz option) | 300 kHz typical |
| Maximum Duty Cycle | 85‑90 % |
All Analog Devices ADP1823 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the input voltage range of the ADP1823?
The ADP1823 operates from 3.7 V to 20 V, and with the internal regulator the range is 5.5 V to 20 V.
Does the ADP1823 support tracking for DDR termination?
Yes, the device provides voltage tracking inputs that can be used for sequencing or DDR termination.
What is the input voltage range of the ADP1823?
The controller accepts an input voltage from 3.7 V up to 20 V (wide power‑stage range 1 V‑24 V).
Which switching frequencies can be selected?
It can operate at a fixed 300 kHz or 600 kHz, and can be synchronized to an external clock for frequencies up to 1 MHz.