STMicroelectronics PM6670A
PM6670A is a complete DDR2/3 power supply regulator designed to meet JEDEC specifications. It integrates a Constant On-Time (C.O.T.) buck controller, a 2Apk sink/source Low Drop Out regulator and a 15mA low noise buffered reference. The 2Apk sink/source linear regulator provides the memory termination voltage with fast load transient response.| Part No. | PM6670A |
|---|---|
| Datasheet | PM6670A Download |
| Manufacturer |  STMicroelectronics |
| Description | Complete DDR2/3 Memory Power Supplies Controller |
| Buy | Stock & Price |
FEATURES
switching● Switching section (VDDQ) – 4.5V to 36V input voltage range – 0.9V, ±1% voltage reference – 1.8V (DDR2) or 1.5V (DDR3) fixed output voltages – 0.9V to 2.6V adjustable 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 VTT LDO and VTTREF – 2Apk LDO with foldback for VTT – Remote VTT sensing – High-Z VTT output in S3 – Ceramic output capacitors supported – ±15mA Low noise buffered reference VFQFPN-24 4x4
DESCRIPTION
The device The C.O.T. architecture assures fast transient response supporting both electrolytic and ceramic output capacitors. An embedded integrator control loop compensates the DC voltage error due to the output ripple.
