ADP3121
ADP3121 is 12V MOSFET Driver manufactured by onsemi.
Dual Bootstrapped, 12 V
MOSFET Driver with Output
Disable
The ADP3121 is a dual, high voltage MOSFET driver optimized for driving two N- channel MOSFETs, the two switches in a non- isolated synchronous buck power converter. Each driver is capable of driving a 3000 p F load with a 20 ns propagation delay and a 15 ns transition time.
One of the drivers can be bootstrapped and is designed to handle the high voltage slew rate associated with floating high- side gate drivers. The ADP3121 includes overlapping drive protection to prevent shoot- through current in the external MOSFETs.
The OD pin shuts off both the high- side and the low- side MOSFETs to prevent rapid output capacitor discharge during system shutdown.
The ADP3121 is specified over the mercial temperature range of 0°C to 85°C and is available in 8- lead SOIC_N and 8- lead LFCSP packages.
Features
- All- In- One Synchronous Buck Driver
- Bootstrapped High- Side Drive
- One PWM Signal Generates Both Drives
- Anticross Conduction Protection Circuitry
- Overvoltage Protection
- OD for Disabling the Driver Outputs
- Meets CPU VR Requirement when Used with Flex- Modet
Controller
- These are Pb- Free Devices
Typical Applications
- Multiphase Desktop CPU Supplies
- Single Supply Synchronous Buck Converters http://onsemi.
MARKING DIAGRAMS
8 SO- 8
D SUFFIX CASE 751- 07
P3121 ALYW G
P3121A = Device Code
AL = Assembly Location
Y = Year
W = Work Week
G = Pb- Free Package
(Note: Microdot may be in either...
