IR3598M
Infineon Technologies
Dual/Doubler Interleaved MOSFET Driver
Package Type: QFN 3 x 3mm
The IR3598 is a high‐efficiency dual driver capable of switching a pair of high and low side N‐channel MOSFETs in synchronous buck converters and is optimized for use with IR’s Digital PWM controllers to provide a total voltage regulator solution for today’s advanced computing applications. In a space saving 16‐pin QFN package, the IR3598 can significantly improve density in high phase count voltage regulators saving over 50% board space versus conventional drivers. The IR3598 can be configured as two independent drivers in DUAL mode with individual PWM signals, or as an interleaved DOUBLER driver where one PWM signal is internally split to drive the two pairs of MOSFETs 180° out of phase. The inter‐leaving action is optimized internally to manage the tri‐state action of multiple phases during transients, low current single phase operation, and PS2 operation (see Figs. 8 and 9.) The DOUBLER mode can double the effective maximum phase count from the controller, enabling a well‐controlled, high phase count voltage regulator. The IR3598 has a proprietary circuit which maintains the MOSFET drive strength throughout the 4.0V to 13.2V drive voltage range thus insuring fast switching even with 5V standby drive operation during system sleep modes. The integrated boot diodes reduce external component count. The IR3598 also features an adaptive non‐overlap control for shoot‐through protection. The IR3598 PWM inputs are compatible with IR’s fast Active Tri‐Level (ATL) PWM signals as well as 3.3V and 5V Tri‐State PWM signals.
Data sheet
