IR3598MPBF International Rectifier, IR3598MPBF Datasheet
IR3598MPBF
Manufacturer Part Number
IR3598MPBF
Description
Dual/Doubler Interleaved MOSFET Driver
Manufacturer
International Rectifier
Datasheet
1.IR3598MPBF.pdf
(2 pages)
Specifications of IR3598MPBF
Vcc
5V
V Drive
4.0V - 12V
Vgd
Yes
System Voltage
5V to 12V
Interface
ATL, Tristate
Hs Source / Sink (o)
1.1 / 0.6
Ls Source / Sink (o)
0.85 / 0.38
Boot Diode
Yes
Overtemp
-
Package
QFN 3 x 3
FEATURES
BASIC APPLICATION
5V
Dual MOSFET drivers in single 16 pin QFN
Multimode operation to configure the driver
Variable Gate drive from 4V to 13V to
5V VCC and VDRV capability for sleep states
Large drivers designed to drive 3nF in < 12ns
Integrated bootstrap diode on both drivers
Capable of high output switching frequencies
Compatible with IR’s patented Active
Non-overlap and under voltage protection
Thermally enhanced 16 pin QFN package
Lead free RoHS compliant package
Low Quiescent power to optimize efficiency
R
VCC
Low side driver – 0.85Ω source/0.38Ω sink
High side driver – 1.1Ω source/0.60Ω sink
Propagation delays < 20ns
package
as either dual or doubler/interleaved mode
drivers
optimize system efficiency
where only 5V is available
with any voltage from 5V to 12V (typ)
supplied to the VDRV pin
from 150kHz up to greater than 1MHz
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
C
Figure 1: IR3598 Typical DOUBLER Mode
VCC
PWM From Controller
V_VGD
Refer to Table 1
Refer to Table 1
1
C
DRV
Application Circuit
NC
EN
NC
October 27, 2011 | FINAL | V1.09
MODE
BOOT1
VCC
FUNCTION
PWM1
PWM2
VDRV
GND
BOOT2
R
R
Boot1
Boot2
IR3598
C
C
SW2
HG1
SW1
HG2
Boot1
LG1
LG2
Boot2
12V
12V
Dual/Doubler Interleaved MOSFET Driver
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
PIN DIAGRAM
Desktop CPU and GPU solutions
Performance overclocking CPU and GPU VR solutions
Optimized for Sleep state S3 systems using +5VSB
BOOT1
BOOT2
MODE
VDRV
Figure 2: IR3598 Package Top View
1
2
3
4
Pad = Pin 17
3x3mm QFN
Top View
GND
12
11
10
9
FUNCTION
VCC
NC
EN
IR3598
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IR3598MPBF Summary of contents
Page 1
FEATURES Dual MOSFET drivers in single 16 pin QFN package 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 ...
Page 2
... ORDERING INFORMATION IR3598 PBF – Lead Free TR – Tape and Reel M – QFN Package October 27, 2011 | FINAL | V1.09 2 Dual/Doubler Interleaved MOSFET Driver Package Tape & Reel Qty QFN 3000 QFN IR3598 Part Number IR3598MTRPBF 100 IR3598MPBF ...