TPS53624_16 Datasheet, PDF (1/44 Pages) Texas Instruments – Dual Phase, D-CAP+, Eco-mode Step-Down Controller with 8-Bit DAC

TPS53624
www.ti.com
SLUSB66 – MARCH 2013
Dual Phase, D-CAP+™, Eco-mode™ Step-Down Controller with 8-Bit DAC
Check for Samples: TPS53624
FEATURES
1
•2 Selectable Dual-or Single-Phase
• Minimum External Parts Count
• 8-Bit DAC Supports Wide Range of
Applications
• Optimized Efficiency at Light and Heavy Loads
• Patented Output Overshoot Reduction (OSR)
Reduces Output Capacitance
• Accurate, Adjustable Voltage Positioning
• Selectable 200, 300, 400 and 500 kHz
Frequency
• Pat. Pending AutoBalance Phase Balancing
• Selectable 8-Level Current Limit
• 3-V to 28-V Conversion Voltage Range
• Fast MOSFET Driver with Integrated Boost
Diode
• Integrated Overvoltage Protection (OVP)
• Small 6 × 6, 40-Pin QFN PowerPAD™ Package
APPLICATIONS
• High-Current, Low-Voltage ASIC or
Microprocessor Core Regulator
DESCRIPTION
The TPS53624 is a dual-phase step down controller
with integrated gate drivers. The PCNT pin enables
operation in dual or single-phase mode to optimize
efficiency depending on the load requirements.
Advanced control features such as D-CAP+™
architecture and OSR provides fast transient
response with low output capacitance. The DAC
supports VID-on-the-fly to optimize the output voltage
to the operating state of the system to reduce
quiescent power. The auto-skip feature of the
TPS53624 optimizes light-load efficiency in single
phase operation. System management features
include adjustable thermal monitor input and output
(THRM, THAL), output current monitoring (IMON),
and complimentary power good signals (PG and
PGD). Adjustable control of the output voltage slew
rate and voltage positioning are provided. In addition,
the TPS53624 includes two high-current FET gate
drivers to drive high and low side N-channel FETs
with exceptionally high speed and low switching loss.
All logic input and output pins have flexible LV input
and output thresholds that enable interface with logic
voltages from 1 V to 3.6 V.
The TPS53624 is packaged in a space saving,
thermally enhanced, RoHS compliant 40-pin QFN
and is rated to operate from –10°C to 105°C.
XXX
T_A
–10°C to 105°C
ORDERING INFORMATION⁽¹⁾
PACKAGE
DEVICE
NUMBER
PINS
TPS53624RHAT
Plastic Quad Flat Pack (QFN)
40
TPS53624RHAR
OUTPUT
SUPPLY
Tape-and-reel
MINIMUM
QUANTITY
250
2500
(1) For the most current package and ordering information, see the packaging information at the end of this document, or see the TI website
at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
D-CAP+, Eco-mode, PowerPAD are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated