Intersil launches five new highly integrated synchronous buck regulators --- ISL8018 and ISL80030, ISL80030A, ISL80031, ISL80031A, can reduce 5V voltage track to load points (POL) input voltage as low as 0.6V, Supply of FPGA, DSP, and microprocessors. Functional characteristics The ISL8018 provides up to 8A continuous output current from 2.7V - 5.5V input voltage, and provides up to 97% efficiency and higher integration than competitor devices; 2 x 2mm isl8003x product line from 2.7V - 5.5V The input voltage provides up to 3A continuous output current and provides up to 95% of peak efficiency, is used to provide universal load point conversion function in telecommunications, cloud computing, industrial, meter, and medical equipment applications.
ISL8018 provides SyncIN and Syncout innovation features that can be connected and synchronized with multiple regulators using the phase shift time delay, with the master / slave configuration, and the same switching frequency. This prevents ON time from overlapping, and reduces RMS current, ripple and input capacitance requirements to improve electromagnetic interference and efficiency. With the VSET feature of ISL8018, the voltage output margin control can be set at +/- 10% to compensate for the output voltage IR drop. The ISET feature provides programmable output current limits to support 8A, 5A, and 3A applications. This allows customers to use a smaller inductor size to reduce costs and reduce the board area. In addition, the 500 kHz - 4MHz programmable switching frequency range of the ISL8018 helps implement faster transient response and saving more board space using smaller passive devices.
ISL80030, ISL80030A, ISL80031 and ISL80031A are compatible with each other, and integrates a very low on-resistance (RDS (ON)) P-channel high-side MOSFET and N-channel low-edge MOSFET, which reduces the number of peripheral components and power. loss. Due to the lower die temperature, these buck regulators can operate without using the cooling fan and the heat sink, and can still provide 3A continuous output current to the load, significantly improved reliability. In addition, they also provide internal compensation, which eliminates the need for additional peripheral components and reduces design complexity. The entire converter only occupies less than 64mm2 board space. The ISL80031 and ISL80031A provide light load mode that improves the efficiency of the system when the system switches to low power, regardless of how much load current is.
Mark Downing, senior vice president of Intersil's Infrastructure and Industrial Power Products, said: "As the number of voltage rails increases and the design complexity is constantly increasing, the power supply design engineer needs to provide high efficiency, quick and transient response and simple and easy to use. Press. The new 8A and 3A synchronous buck regulators provide the characteristics of the characteristics required by the customer with a small to 2x 2mm, which can meet the requirements of various load points. "
Main features and specifications of ISL8018
Provide peak efficiency of up to 97%
Complete converter only accounts for less than 97mm2 circuit board space
+/- 10% Output voltage margin control
The output voltage can be adjusted within 0.6V to the input voltage range, with fixed output voltage options
Adjustable current limits
External synchronous frequency is up to 4MHz, with master - from phase shift capabilities
500kHz - 4MHz adjustable switching frequency range, the default operating frequency is 1MHz
Start in the predefined output, internal soft start - 1ms or adjustable, internal / external compensation
Soft stop output discharge during disable
Peak current limit, snoring mode short circuit protection and over temperature protection
Main features and specifications of ISL80030, ISL80030A, ISL80031, ISL80031A
Provide up to 95% of the peak efficiency, 3A maximum output current
Switch frequency up to 2MHz
Provide static current as low as 35ua
Optional PFM or PWM operating mode
Short circuit protection and overcurrent, negative current, over temperature / thermal protection
Internal soft start and soft stop
VIN undervoltage locking and VOUT overvoltage protection
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