5V Or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

The ISL6341 ISL6341A ISL6341B makes simple work out of implementing a complete control and protection scheme for a DC/DC stepdown converter driving N-Channel MOSFETs in a synchronous buck topology. Since it CAN work with either 5V or 12V supplies, this one IC CAN be used in a wide variety of applications within a system. The ISL6341 ISL6341A ISL6341B integrates the control, Gate drivers, output adjustment, monitoring and protection functions into a single 10 Ld Thin DFN package.
The ISL6341 ISL6341A ISL6341B provides 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 0.8% over temperature and line voltage variations. A fixed frequency Oscillator (300kHz for ISL6341 600kHz for ISL6341A ISL6341B reduces design complexity, while balancing typical application cost and efficiency. The PWM duty cycles range from 0% to around 85% at 300kHz (75% at 600kHz). The frequency, duty cycle and OCP are the only differences among the ISL6341 ISL6341A ISL6341B. See Table 1 for a summary.
Protection from overcurrent conditions is provided by monitoring the rDS(ON) of the lower MOSFET to inhibit PWM operation appropriately (the ISL6341 ISL6341B are slightly different from the ISL6341A see Overcurrent Protection (OCP) on page 7 for details). This approach simplifies the implementation and improves efficiency by eliminating the need for a Current Sense resistor. The output voltage is also monitored for undervoltage and overvoltage protection, in addition to monitoring for a PGOOD output.
By Intersil Corporation
ISL6341 's PackagesISL6341 's pdf datasheet
ISL6341CRZ TDFN
ISL6341CRZ-T TDFN
ISL6341IRZ TDFN
ISL6341IRZ-T TDFN




ISL6341 Pinout, Pinouts
ISL6341 pinout,Pin out
This is one package pinout of ISL6341,If you need more pinouts please download ISL6341's pdf datasheet.

ISL6341 Application circuits
ISL6341 circuits
This is one application circuit of ISL6341,If you need more circuits,please download ISL6341's pdf datasheet.


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