IR3596_15 Datasheet, PDF (1/2 Pages) International Rectifier – Digital Multi-Phase Memory/Mobile Controller

Digital Multi-Phase Memory/Mobile Controller
IR3596
FEATURES
 Ultra Low Power single loop PWM Controller
with 3 PWMs configurable as 1, 2, 3 phase
systems
 Compliant with Intel VR12.5 Rev 1.3/VR12.6
Rev1.0 specifications
 Intel® VR12.5/VR12.6 SVID or I2C controlled
regulation
 Optimized for 3 phase DDR memory solution
when paired with IR3548 and IR355x
PowIRstage
 ~50mW @ Maximum Performance
 Compatible with Active Tri Level (ATL)
Industry Standard Tri-state Drivers
 Dynamic Phase Control and Automatic Power
State Switching with Active Diode Emulation
for Very Light Loads
 I2C system interface for telemetry of
Temperature, Voltage, Input and Output
Current & Power
 Fault Protection: Output OVP, UVP, OC
Warn, OCP, OT Warn, OTP
 IR Adaptive Transient Algorithm (ATA)
minimizes output bulk capacitors and system
cost
 8 Time Programming (MTP) with integrated
charge pump for easy custom configuration
 200kHz to 2MHz switching frequency per
phase
 +3.3V supply voltage; -40°C to 85°C ambient
operation
 Pb-Free, RoHS, 4x4mm, 28-pin, 0.4mm pitch
QFN
DESCRIPTION
The IR3596 is a flexible single loop digital multi-phase
buck controller that can be configured as a 1, 2 or 3
phase system when combined with IR Dual 6x8mm
IR3548 or IR355x powIRstages.
Power consumption is minimized while maintaining full
digital capability and flexibility. Digital non-linear transient
control allows lower frequency operation to achieve the
highest efficiency possible while providing minimal all
ceramic output capacitor solutions. The IR3596 includes
IR’s Efficiency Shaping Technology to automatically
deliver exceptional efficiency at minimum cost across the
entire load range and can be configured to enter 1-phase
operation and active diode emulation mode automatically
or by command. The IR3596 may also shut down
connected drivers/PowIRstage to minimize the quiescent
current consumption in the system to maximize battery
life on next gen VR12.5/VR12.6 notebooks/Ultrabooks.
IR’s unique Adaptive Transient Algorithm (ATA), based
on proprietary non-linear digital PWM algorithms,
minimizes output bulk capacitors, and improves transient
response and form factor.
Device configuration and fault parameters are easily
defined using the IR Digital Power Design Center (DPDC)
GUI and stored in on-chip MTP. MTP storage saves pins
and enables a small package size. Fault protection
includes output OV, UV and OC protection, thermistor or
NTC based OT protection sensing with a VRHOT signal
output and a Over Current warning flag.
APPLICATIONS
 DDR3/LV DDR3/ DDR4 Memory Controller
 VR12.5/VR12.6 Mobile Controller
ORDERING INFORMATION
Base Part
Number
Package Type
Standard Pack
Form
Quantity
Orderable
Part Number
Programming
IR3596
QFN 4 mm x 4 mm
Tape and Reel
3000
IR3596MTRPBF
Default
IR3596
QFN 4 mm x 4 mm
Tape and Reel
3000
IR3596MxxyyTRP ¹
Customer Configuration
Notes:
1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
1 ^{www.irf.com | © 2014 International Rectifier}
June 6, 2014 | V1.3