STMicroelectronics L6911D
The device is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors. The high precision internal reference assures the selected output voltage to be within ±1%.| Part No. | L6911D |
|---|---|
| Datasheet | L6911D Download |
| Manufacturer |  STMicroelectronics |
| Description | 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER |
| Buy | Stock & Price |
APPLICATIONS
s POWER SUPPLY FOR ADVANCED MICROPROCESSOR CORE s DISTRIBUTED POWER SUPPLY s HIGH POWER DC-DC REGULATORSDESCRIPTION
A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 1.30V to 2.05V with 50mV binary steps and from 2.10V to 3.50V with 100mV binary steps. 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 overcurrent and load overvoltage. An external SCR is triggered to crowbar the input supply in case of hard over-voltage. An internal crowbar is also provided turning on the low side mosfet as long as the overvoltage is detected. In case of over-current detection, the soft start capacitor is discharged and the system works in HICCUP mode. BLOCK DIAGRAM Vcc 5 to 12V Vin 5V to12V PGOOD SS VCC OCSET BOOT MONITOR and PROTECTION OVP RT UGATE OSC PHASE LGATE PGND Vo 1.100V to 1.850V VD0 VD1 VD2 VD3 VD4 D/A + E/A + PWM GND...
