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> Intersil ISL6261AEVAL1Z single-phase buck regulator
Intersil ISL6261AEVAL1Z single-phase buck regulator
Intersil ISL6261AEVAL1Z single-phase buck regulator evaluation board. Includes spec sheets and user guide. No other hardware or software included. In excellent clean condition and guaranteed not DOA.
The ISL6261A is a single-phase buck regulator implementing lntel IMVP-6 protocol, with embedded gate drivers. lntel Mobile Voltage Positioning (IMVP) is a smart voltage regulation technology effectively reducing power dissipation in lntel Pentium processors.
The heart of the ISL6261A is the patented R3 Technology , Intersil's Robust Ripple Regulator modulator. Compared with the traditional multi-phase buck regulator, the R3 Technology has faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient.
The ISL6261A provides three operation modes: the Continuous Conduction Mode (CCM), the Diode Emulation Mode (DEM) and the Enhanced Diode Emulation Mode (EDEM). To boost battery life, the ISL6261A changes its operation mode based on CPU mode signals DPRSLRVR and DPRSTP#, and the FDE pin setting, to maximize the efficiency. In CPU active mode, the ISL6261A commands the CCM operation. When the CPU enters deeper sleep mode, the ISL6261A enables the DEM to maximize the efficiency at light load. Asserting the FDE pin of the ISL6261A in CPU deeper sleep mode will enable the EDEM to further decrease the switching frequency at light load and increase the regulator efficiency.
A 7-bit Digital-to-Analog Converter (DAC) allows dynamic adjustment of the core output voltage from 0.300V to 1.500V. The ISL6261A has 0.5% system voltage accuracy over temperature.
A unity-gain differential amplifier provides remote voltage sensing at the CPU die. This allows the voltage on the CPU die to be accurately measured and regulated per lntel IMVP-6 specification. Current sensing can be implemented through either lossless inductor DCR sensing or precise resistor sensing. If DCR sensing is used, an NTC thermistor network will thermally compensates the gain and the time constant variations caused by the inductor DCR change.
The ISL6261A provides the power monitor function through the PMON pin. PMON output is a high-bandwidth analog voltage signal representing the CPU instantaneous power. The power monitor function can be used by the system to optimize the overall power consumption, extending battery run time.
* Precision single-phase CORE voltage regulator
o 0.5% system accuracy over temperature
* Internal gate driver with 2A driving capability
* Microprocessor voltage identification input
o 0.300V to 1.500V in 12.5mV steps
o Support VID change on-the-fly
* Multiple current sensing schemes supported
o Lossless inductor DCR current sensing
o Precision resistive current sensing
* Power monitor indicating CPU instantaneous power
* User programmable switching frequency
* Differential remote voltage sensing at CPU die
* Overvoltage, undervoltage, and overcurrent protection
No other software, documentation or other accessories included, only the items specified above.
We are not responsible for any harm caused by use or misuse of any equipment purchased from us.
