PM6641
PM6641 is Monolithic VR for chipset and DDR2/3 supply manufactured by STMicroelectronics.
Monolithic VR for chipset and DDR2/3 supply for ultra-mobile PC (UMPC) applications
Features
- 0.8 V ±1% internal voltage reference
- 2.7 V to 5.5 V input voltage range
- Fast response, constant frequency, current mode control
- Three independent, adjustable, out-of-phase
SMPS for DDR2/3 (VDDQ) and chipset supply
- Low noise DDR2/3 reference (VTTREF)
- ±2 Apk LDO for DDR2/3 termination (VTT) with foldback
- S0-S5 states pliant DDR2/3 section
- Active soft-end for all outputs
- Selectable tracking discharge for VDDQ
- Separate Power Good signals
- Pulse skipping at light load
- Programmable current limit and soft-start for all outputs
- Latched OVP, UVP protection
- Thermal...
