The ADP1828 is a synchronous buck PWM DC-DC converter from American ADI company. Its input voltage range is 1V~24V, output voltage range is 0.6V~85%, and the accuracy is ±0.85%. It has an integrated linear regulator and can implement soft start and thermal overload protection.
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.
| 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 |
The ADP1828 accepts an input voltage from 3.0 V up to 20 V.
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.
Yes, it contains an internal linear regulator that provides a 5 V output.
It is offered in a 20‑lead QSOP package and a 20‑lead 4 mm × 4 mm LFCSP package.