STMicroelectronics PM6675A
The PM6675A device consists of a single high efficiency step-down controller and an independent Low Drop-Out (LDO) linear regulator. The Constant On-Time (COT) architecture assures fast transient response supporting both electrolytic and ceramic output capacitors. The low-noise mode sets the minimum switching frequency to 33kHz for audio-sensitive applications.| Part No. | PM6675A |
|---|---|
| Datasheet | PM6675A Download |
| Manufacturer |  STMicroelectronics |
| Description | High Efficiency Step Down Controller |
| Buy | Stock & Price |
FEATURES
switching● Switching section – 4.5V to 36V input voltage range – 0.6V, ±1% voltage reference – Selectable 1.5V fixed output voltage – Adjustable 0.6V to 3.3V output voltage – 1.237V ±1% reference voltage available – Very fast load transient response using constant-on-time control loop – No RSENSE current sensing using low side MOSFETs' RDS(ON) – Negative current limit – Latched OVP and UVP – Soft start internally fixed at 3ms – Selectable pulse skipping at light load – Selectable No-Audible (33KHz) pulse skip mode – Ceramic output capacitors supported – Output voltage ripple compensation – Output soft-end LDO regulator section – Adjustable 0.6V to 2.5V output voltage – Selectable ±1Apk or ±2Apk current limit – Dedicated power-good signal – Ceramic output capacitors supported – Output soft-end VFQFPN-24 4x4
DESCRIPTION
An embedded integrator control loop compensates the DC voltage error due to the output ripple. Selectable low-consumption mode allows the highest efficiency over a wide range of load conditions.
