STMicroelectronics L6919E
The device is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors. The device implements a dual-phase step-down controller with a 180° phase-shift between each phase.| Part No. | L6919E |
|---|---|
| Datasheet | L6919E Download |
| Manufacturer |  STMicroelectronics |
| Description | 5-BIT PROGRAMMABLE DUAL-PHASE CONTROLLER |
| Buy | Stock & Price |
DESCRIPTION
A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 0.800V to 1.550V with 25mV binary steps managing On-The-Fly VID code changes. The high precision internal reference assures the selected output voltage to be within ±0.6%. The high peak current gate drive affords to have fast switching to the external power mos providing low switching losses. The device assures a fast protection against load over current and load over/under voltage. An internal crowbar is provided turning on the low side mosfet if an over-voltage is detected. In case of over-current, the system works in Constant Current mode. le duBLOCK DIAGRAM Obso te ProPGOOD OSC / INH SGN D PW M1 VCCD R HS BOO T 1 UGA T E1 PHAS E1 2 P H AS E O S C IL L ATOR sole DIGITAL Ob SOFT-START LOGIC AN D P ROTE CTION S C U RR EN T COR R EC TI ON L O G IC PW M A DA PTIV E A NT I CRO SS CO ND UCT IO N VCC VCC DR TO TAL C UR REN T CH1 OCP LS CUR REN T REA DIN G L GAT E1 ISE N1 PGN DS1 C U R R E...
