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2022-09-21 17:24:28
IMVP-6.5 single-phase PWM regulator #8482; mobile phone CPU and GPU ISL62881, ISL62881B
ISL62881 is a core power supply for microprocessor or graphics processor. It uses a complete integrated door drive solution. Pulse width modulation of ISL62881 The modulator is based on Intersil's robust ripple regulator (R3) technology #8482 ;. Compared with the traditional modulator, R3 #8482; response. In the same modulator, the switch frequency is reduced when the light load is reduced to improve the efficiency of the regulator. ISL62881 can be configured as CPU or graphical VCORE controller that fully meets IMVP-6.5 #8482; specifications. It sends a DPRSLVR signal by entering/exiting the diode simulation mode. It reports the output current through the IMON pin. It feels that the temperature changes of the current using a discrete resistance or inductance DCR can be compensated by a NTC thermistor. It uses a differential remote voltage sensor to accurately adjust the processor chip voltage. Turn on the diodes of the adaptive diode to minimize the transmission loss mode of the diode in the diode in the diodes of the diode. The user's selection of super -adjustment and reduction function provides a choice to actively reduce the thermal stress of the option system for the output capacitors and the use of its option system. Maintain all ISL62881 functions, ISL62881B provides thermal resistance control function. It also provides the slump function to further improve the light load efficiency
Features
Accurate core voltage adjustment-System accuracy exceeds 0.5% -7-bit VID input, 0V to 1.500V, 12.5mV step-supporting dynamic video changes
Support multiple current fluidity methods-lossless electrostatic DCR current sensing-precision resistance current sensing
[[] [[ 123] Excellent anti -noise and transient response
current monitor
Differential remote sensing voltage
The high efficiency within the entire load range
Integrated door Drive
Sominatal mercury alloy drive, improve light load efficiency (for ISL62881B)
Self -adapter diode conduction time is shortened
User's optional over -reduction and minimum function
Audio filtering of the drooping function
GPU application
Covering area 28 LD 4X4 TQFN packaging
Leadless (compliance with ROHS) [123) [123) [123) ]
ApplicationNotebook Computer
Note:
1. Add -t* " suffix to the tape and curls. Essence See TB347 for the volume specifications.
2. These INTERSIL lead -free plastic packaging products use special lead -free material groups