STMicroelectronics L6917B
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. | L6917B |
|---|---|
| Datasheet | L6917B Download |
| Manufacturer |  STMicroelectronics |
| Description | 5-BIT PROGRAMMABLE DUAL-PHASE CONTROLLER |
| Buy | Stock & Price |
APPLICATIONS
u O s POWER SUPPLY FOR SERVERS AND d - WORKSTATIONS ro ) s POWER SUPPLY FOR HIGH CURRENT P t(s MICROPROCESSORS s DISTRIBUTED DC-DC CONVERTERS lete duc BLOCK DIAGRAM ROSC / INH bso Pro PGOOD 2 PHASE OSCILLATOR CU RR EN T COR RECT ION LOGIC PWM ADAPTIVE ANTI CROSS-CONDUCTION O olete DIGITAL SOFT START Obs VID4 LOGIC AND PROTEC TIONS VCC VCC DR SO-28 ORDERING NUMBERS:L6917BD L6917BDTR (Tape & Reel)DESCRIPTION
A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 1.100V to 1.850V with 25mV binary steps. The high precision internal reference assures the selected output voltage to be within ±0.8%. 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.
