Key facts
- Brand
- Analog Devices
- Model
- ADP1828
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-05
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Analog Devices ADP1828 Datasheet
The ADP1828 is a versatile synchronous buck controller that regulates output voltages as low as 0.6 V up to 85 % of the input voltage. It features a wide bias voltage range (3 V‑20 V), selectable fixed‑frequency operation at 300 kHz or 600 kHz, or an adjustable range of 300‑600 kHz, and includes a clock output for synchronizing multiple devices. An internal linear regulator provides a 5 V output and the device offers soft‑start, thermal overload protection, and power‑good indicators.
Typical applications include telecom and networking power, set‑top boxes, printers, medical imaging systems, and DSP or microprocessor core supplies. The controller is offered in 20‑lead QSOP and 20‑lead 4 mm × 4 mm LFCSP packages and operates from –40 °C to +125 °C junction temperature.
Analog Devices ADP1828 specifications
| Input Voltage Range | 3.0 V to 20 V |
|---|---|
| Output Voltage Range | 0.6 V to 85 % of input voltage |
| Switching Frequency Options | 300 kHz, 600 kHz, or adjustable 300‑600 kHz |
| Operating Temperature Range | –40 °C to +125 °C |
| Package Options | 20‑lead QSOP and 20‑lead 4 mm × 4 mm LFCSP |
Source: Analog Devices ADP1828 Datasheet
All Analog Devices ADP1828 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 ADP1828?
The ADP1828 accepts an input voltage from 3.0 V up to 20 V.
How can the switching frequency be set?
The controller can run at a fixed 300 kHz or 600 kHz, or the frequency can be adjusted between 300 kHz and 600 kHz with a resistor, and it can be synchronized via the SYNC pin.
What is the input voltage range for the ADP1828?
The device operates with a bias voltage from 3.0 V up to 18 V.
What switching frequencies does the ADP1828 support?
It can run at a fixed 300 kHz or 600 kHz, or be set anywhere between 300 kHz and 600 kHz with a resistor.
How can the switching frequency be selected?
The FREQ pin selects a fixed 300 kHz (low) or 600 kHz (high) frequency, and a resistor from FREQ to GND allows a free‑running frequency between 300 kHz and 600 kHz.
Does the ADP1828 include an internal linear regulator?
Yes, it contains an internal LDO that provides a 5 V output for biasing when VIN exceeds 5.5 V.