
- Stock: In Stock
- Brand: Unbranded
- Model: 1-CHIP0524
- SKU: 1-CHIP0524
Realtime Stock
Controller IC Chip - MOSFET ISL6520 BCBZ chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0524)
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
The ISL6520 makes simple work out of implementing a complete control and protection scheme for a DC/DC stepdown converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, the ISL6520 integrates the control, output adjustment, monitoring and protection functions into a single 8-pin package.The ISL6520 provides simple, single feedback loop, voltage-mode control with fast transient response. The output voltage can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1.5% over temperature and line voltage variations. A fixed frequency oscillator reduces design complexity, while balancing typical application cost and efficiency.The error amplifier features a 15MHz gain-bandwidth product and 8V/ms slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty cycles range from 0% to 100%.Protection from over-current conditions is provided by monitoring the rDS(ON) of the upper MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor.
• Operates from +5V Input• 0.8V to VIN Output Range- 0.8V Internal Reference- ±1.5% Over Line Voltage and Temperature• Drives N-Channel MOSFETs• Simple Single-Loop Control Design- Voltage-Mode PWM Control• Fast Transient Response- High-Bandwidth Error Amplifier- Full 0% to 100% Duty Cycle• Lossless, Programmable Over-Current Protection - Uses Upper MOSFET’s rDS(on)• Small Converter Size- 300kHz Fixed Frequency Oscillator- Internal Soft Start- 8 Ld SOIC or 16Ld 4x4mm QFN• QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline- Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile• Pb-Free Plus Anneal Available (RoHS Compliant)
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