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Details for TPS53647RTAT by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC/DC CONTROLLER BUCK 1MHZ WQFN-40
TPS53647RTAT image

TPS53647RTAT by Texas Instruments

DC/DC CONTROLLER BUCK 1MHZ WQFN-40
Features
1-, 2-, 3-, or 4- Phase Operation
1.8-V and 3.3-V PMBus Bias Compatible
16 Levels of Programmable OCP with Pinstrap or NVM
300-kHz to 1-MHz Frequency Selections with Closed-loop Frequency Control
8 Independent Levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV Step)
Accurate, Adjustable Voltage Positioning
Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
Conversion Voltage Range: 4.5 V to 17 V
Driverless Configuration for Efficient High- Frequency Switching
Dynamic Phase Shedding with Programmable Current Threshold
Fast Transient with DCAP+u2122Control
Fault Reporting: Output Voltage, Output Current, and Temperature
Fully Compatible with CSD95372BQ5MC NexFETu2122 Power Stage
Optimized Efficiency at Light and Heavy Loads
PMBusu2122 System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
Patented AutoBalanceu2122 Phase Balancing
Phase Current Imbalance Detection and Reporting
Small, 6 mm u00d7 6 mm, 40-Pin, QFN, PowerPADu2122
Support Pre-Bias Startup
Uses TIu2019s Fusion Digital Power Designer GUI
Part Information
TPS53647RTAT image
RoHS Compliant
Description
The TPS53647 is a high-current, multi-phase, stepdown controller. The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with the NexFET power stages (CSD95372BQ5MC). The TPS53647 provides 8-bit BOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 mV, which is ideal for high current application with accurate output voltage setting. Advanced control features such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency. The TPS53647 also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at light loads. In addition, the TPS53647 supports the PMBus communication interface with systems for telemetry of voltage, current, power, temperature, and fault conditions. Some of the configurations can be programmed by pinstrap or PMBus and stored in non-volatile memory to minimize the external component count. The TPS53647 is offered in a space saving, thermally enhanced 40-pin QFN package and is rated to operate from –40°C to 125°C.
Specifications
Supply Voltage Min:
4.5V
Supply Voltage Max:
17V
No. of Outputs:
1 Output, 1Outputs
Duty Cycle (%):
-
Controller IC Case Style:
WQFN
No. of Pins:
40Pins
Switching Frequency:
1MHz
Topology:
Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
DC DC Cntrlr Single-OUT Buck Controller 4.5V to 17V 40-Pin WQFN T/R Avnet America
DC DC Cntrlr Single-OUT Buck Controller 4.5V to 17V 40-Pin WQFN T/R Avnet Europe