The LTC ®1736 is a synchronous step-down switching regulator controller optimized for CPU power. The output voltage is programmed by a 5-bit digital-to-analog converter (DAC) that adjusts the output voltage from 0.925V to 2.00V according to Intel mobile VID specifications. The 0.8V reference is compatible with future microprocessor generations. The operating frequency (synchronizable up to 500kHz) is set by an external capacitor allowing maximum flexibility in optimizing efficiency. The output voltage is monitored by a power good window comparator that indicates when the output is within 7.5% of its programmed value.
The LTC1736 is a high‑efficiency synchronous step‑down switching regulator with a 5‑bit digital‑to‑analog voltage selector, allowing output voltages from 0.925 V to 2.00 V. It features programmable soft‑start, burst‑mode operation, and a wide input range suitable for notebook, PDA, and mobile CPU power supplies.
The document includes absolute maximum ratings, detailed electrical characteristics, typical performance graphs, pin descriptions, functional diagram, and package dimensions for the 24‑lead SSOP version. It also lists recommended external components and typical application circuits.
| Input Voltage Range | 3.5 V to 36 V |
|---|---|
| Maximum Switching Frequency | Up to 500 kHz (synchronizable) |
| Package Type | 24‑Lead Plastic SSOP |
The LTC1736 accepts an input voltage from 3.5 V up to 36 V.
It is supplied in a 24‑lead SSOP package.
The regulator can operate at a synchronizable frequency up to 500 kHz.