UltraPortableDigitalMulti‐PhaseMobileController
IR3588
www.irf.com|©2014InternationalRectifier June6,2014|V1.3
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FEATURES
Ultra Low Power single loop PWM Controller
with 2 PWMs configurable as 1, 2, or 4 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 1 or 2 phase Ultrabook®
solution when paired with IR3548 or IR3552
PowIRstage
<1mW in PS4, <50mW @ Maximum
Performance
48mV/µs Dynamic VID capable for fast wake-
up and regenerative braking
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
Overclocking & Gaming Mode up to 2.3VOUT
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 IR3588 is a flexible single loop digital multi-phase
buck controller that can be configured as a 1, 2 or 4
phase system when combined with the IR Dual 6x8mm
IR3548 or 5x6mm IR3552.
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 IR3588 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 IR3588 may also shut down
connected drivers/PowIRstage to minimize the quiescent
current consumption in the system.
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
Diode based OT protection sensing with a VRHOT signal
output and a Over Current warning flag.
APPLICATIONS
High Performance Portable
Net/Note/Ultra Book
ORDERING INFORMATION
Base Part
Number
Package Type
Standard Pack
Orderable
Part Number
Programming
Form Quantity
IR3588 QFN 4 mm x 4 mm Tape and Reel 3000 IR3588MTRPBF
Default
IR3588 QFN 4 mm x 4 mm Tape and Reel 3000 IR3588MxxyyTRP
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Customer Configuration
Notes:
1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
