IR3598 판매점 - Dual/Doubler Interleaved MOSFET Driver

Dual/Doubler Interleaved MOSFET Driver IR3598

FEATURES

 Dual MOSFET drivers in single 16 pin QFN

package

 Buck Converter Driver Vin 4.0 to 13.2Vdc

 Multimode operation to configure the driver

as either dual or doubler/interleaved mode

drivers

 Variable Gate drive from 4V to 13V to

optimize system efficiency

 5V VCC and VDRV capability for sleep states

where only 5V is available

 Large drivers designed to drive 3nF in < 12ns

with any voltage from 5V to 12V (typ)

supplied to the VDRV pin

 Low side driver – 0.85Ω source/0.38Ω sink

 High side driver – 1.1Ω source/0.60Ω sink

 Propagation delays < 20ns

 Integrated bootstrap diode on both drivers

 Capable of high output switching frequencies

from 150kHz up to greater than 1MHz

 Compatible with IR’s patented Active

Tri‐Level (ATL) PWM for fastest response to

transient overshoot as well as industry

standard 3.3V and 5V Tri‐State signals in

most modes

 Non‐overlap and under voltage protection

 Thermally enhanced 16 pin QFN package

 Lead free RoHS compliant package

 Low Quiescent power to optimize efficiency

BASIC APPLICATION

DESCRIPTION

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.

APPLICATIONS

 Desktop CPU and GPU solutions

 Performance overclocking CPU and GPU VR solutions

 Optimized for Sleep state S3 systems using +5VSB

PIN DIAGRAM

Figure 1: IR3598 Typical DOUBLER Mode

Application Circuit

1 October 25, 2013 | FINAL | V1.12

Figure 2: IR3598 Package Top View

IR3598 반도체 회로 부품 판매점

Dual/Doubler Interleaved MOSFET Driver

국내 전력반도체 판매점

일반적인 전자부품 판매점

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