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Controllers | NCP81248
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The NCP81248 contains a two−phase, and two single−phase buckregulator controllers optimized for Intel IMVP8 compatible CPUs.The two−phase controller combines true differential voltagesensing, differential inductor DCR current sensing, input voltagefeed−forward, and adaptive voltage positioning to provide accuratelyregulated power for IMVP8 CPU.The two single−phase controllers make use of onsemi’spatented high performance RPM operation. RPM control maximizestransient response while allowing smooth transitions betweendiscontinuous frequency scaling operation and continuous mode fullpower operation. The single−phase rails have a low offset currentmonitor amplifier with programmable offset compensation for highaccuracy current monitoring.
- Embedded Systems
- Vin Range 4.5 V to 25 V
- Startup into Pre−Charged Loads While Avoiding False OVP
- Adjustable Vboot (except Rail 3)
- High Impedance Differential Output Voltage Amplifiers
- Dynamic Reference Injection
- Programmable Output Voltage Slew Rates
- Dynamic VID Feed−Forward
- Differential Current Sense Amplifiers for Each Phase
- Switching Frequency Range of 200 kHz – 1.2 MHz
- Digitally Stabilized Switching Frequency
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NCP81248MNTXG
Active
Pb
A
H
P
QFN-48
1
260
REEL
2500
Y
Step-Down
1/2
Current/Voltage Mode
4.75
5.25
200 - 1200
$1.5111
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