TPS53632 Datasheet, PDF (1/43 Pages) Texas Instruments – 3-2-1 Phase D-CAP+™ Step-Down Driverless Controller for Low-Voltage Applications with I2C Interface Control

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS53632
SLUSBW8 – SEPTEMBER 2014
TPS53632 3-2-1 Phase D-CAP+™ Step-Down Driverless Controller
for Low-Voltage Applications with I²C Interface Control
1 Features
•1 Selectable Phase Count: (3, 2, or 1)
• I²C Interface for VID Control and Telemetry with
Eight Device Addresses
• D-CAP+™ Control for Fast Transient Response
• Dynamic Phase Add and Drop Operation
• Switching Frequency: 300 kHz to 1 MHz
• Digital Current Monitor
• 7-Bit, DAC Output Range: 0.50 V to 1.52 V
• Optimized Efficiency at Light and Heavy Loads
• Accurate, Adjustable Voltage Positioning or Zero
Slope Load-Line
• Patented AutoBalance™ Phase Balancing
• Selectable, 8-Level Current Limit
• 2.5-V to 24-V Conversion Voltage Range
• Default Boot Voltage: 1.00 V
• Small, 4-mm x 4-mm, 32-Pin, VQFN PowerPAD
Package
2 Applications
• High-Current, Low-Voltage Applications
• Core Power for Microservers, Custom
Microcontrollers, ASICs
3 Description
The TPS53632 device is a driverless step-down
controller with serial control. Advanced features such
as D-CAP+ architecture provide fast transient
response, lowest output capacitance and high
efficiency. The TPS53632 device supports the
standard I²C Rev 3.0 interface for dynamic control of
the output voltage and current monitor telemetry. It
also has dynamic phase add and drop control and
enters single-phase, discontinuous-current-mode
operation to maximize light-load efficiency.
Other features include adjustable control of V_CORE
slew rate and voltage positioning. The TPS51604
device driver is designed specifically for this
generation of controllers. In addition, the TPS53632
device can be used along with the TI power stage
devices (driver MOSFETs). The TPS53632 device is
packaged in a space saving, thermally enhanced, 32-
pin VQFN package and is rated to operate at a range
between –10°C and 105°C.
PART NUMBER
TPS53632
Device Information
PACKAGE
BODY SIZE
VQFN
4 mm × 4 mm
Simplified Schematic
TPS53632
PWM1
Power Stage
Driver
Power
Block
Control BUS
PWM2
Power Stage
Driver
Power
Block
Power Stage
PWM3
SKIP
Driver
Power
Block
V_O
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.