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TPS56C20 Dataheets PDF



Part Number TPS56C20
Manufacturers Texas Instruments
Logo Texas Instruments
Description Synchronous Step-Down Voltage Regulator
Datasheet TPS56C20 DatasheetTPS56C20 Datasheet (PDF)

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS56C20, TPS56920, TPS56720, TPS56520 SLVSCB6E – NOVEMBER 2013 – REVISED DECEMBER 2017 TPS56x20 4.5V to 17V Input, 12A/9A/7A/5A Output, Synchronous Step-Down Voltage Regulator with Voltage Scaling 1 Features •1 D-CAP2™ Control – Input Voltage Range: 4.5V to 17V – Switching Frequency: 500kHz – Optimized for a 1.0µH to 2.2µH Inductor • ±1% Output Voltage Accuracy • Features via I2C Compatible Interface – Outpu.

  TPS56C20   TPS56C20


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Product Folder Order Now Technical Documents Tools & Software Support & Community TPS56C20, TPS56920, TPS56720, TPS56520 SLVSCB6E – NOVEMBER 2013 – REVISED DECEMBER 2017 TPS56x20 4.5V to 17V Input, 12A/9A/7A/5A Output, Synchronous Step-Down Voltage Regulator with Voltage Scaling 1 Features •1 D-CAP2™ Control – Input Voltage Range: 4.5V to 17V – Switching Frequency: 500kHz – Optimized for a 1.0µH to 2.2µH Inductor • ±1% Output Voltage Accuracy • Features via I2C Compatible Interface – Output Voltage (VID): 0.6V to 1.87V in 10mV – Auto-Skip Eco-mode™ ON/OFF (Light-load) – Current Limit Target: 40% to 160% – Enabling IC, Reading-back Power-good – Hiccup Mode Protection ON/OFF • IC Terminal Features – Start-up by Using External Resistors Output Voltage with VFB Pin: 0.6V to 1.87V – Adjustable Soft-start, Monotonic Pre-Biased Start-up – Power-good – I2C Address Programming (2bits) • Cycle-by-Cycle Overcurrent Limiting Control • Thermal Shutdown (TSD) • Undervoltage Lockout (UVLO) • TSSOP Package (PWP) with PowerPAD™ 2 Applications • Media Processors for Consumer Applications: Digital TVs, Set Top Boxes (STB, DVD/Blu-ray Player, Cable/Satellite Modem) • SoC Processors • High Density Power Distribution Systems 3 Description The TPS56X20 is a synchronous DC-DC converter IC (integrated circuit) with a voltage scaling control to power up micro-processors (MCUs) requiring core voltage (VCORE) tune-ups. After the initial power-up, the output voltage can be programmed/scaled by VID codes sent over an I2C compatible bus. This step-down (buck) converter employs an adaptive on-time D-CAP2 mode control which provides a very fast transient response with no external components. Unlike traditional voltage-/current-mode controls, the D-CAP2 supports seamless transition between PWM mode for higher load and Eco-mode™ for light load. Eco-mode maintains high efficiency in light-load. PART NUMBER TPS56C20 TPS56920 TPS56720 TPS56520 Device Information PACKAGE BODY SIZE HTSSOP (24) 7.80 mm × 4.40 mm HTSSOP (20) 6.50 mm × 4.40 mm Typical Application Circuit 3.3 V R1 R2 R3 1.0kΩ 1.0kΩ 1.0kΩ U1 TPS56520 TPS56720 TPS56920 1 EN VFB VIN SDA 2 SDA VOUT µProcessor SCL 3 A1 4 SCL A1 SS GND A0 5 A0 VREG5 6 VIN PGOOD 7 VIN PVIN VBST C1 10µF C2 4.7µF 8 PVIN 9 PGND SW SW 10 PGND SW PGND AGND 20 19 18 17 16 15 14 13 11 12 21 PWRPAD PGND PGND R4 10.0k PWRGD R5 18.2kΩ C4 2.2µF C5 0.01µF R6 22kΩ C3 0.1µF L1 AGND 1.5µH VOUT C6 100µF PGND 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. TPS56C20, TPS56920, TPS56720, TPS56520 SLVSCB6E – NOVEMBER 2013 – REVISED DECEMBER 2017 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Description (Continued) ........................................ 3 6 Pin Configuration and Functions ......................... 4 7 Specifications......................................................... 6 7.1 Absolute Maximum Ratings ...................................... 6 7.2 ESD Ratings.............................................................. 6 7.3 Recommended Operating Conditions....................... 6 7.4 Thermal Information ................................................. 7 7.5 Electrical Characteristics........................................... 7 7.6 Timing Requirements ................................................ 9 7.7 Switching Characteristics .......................................... 9 7.8 Typical Characteristics ............................................ 10 8 Detailed Description ............................................ 15 8.1 Overview ................................................................. 15 8.2 Functional Block Diagram ....................................... 15 8.3 Feature Description................................................. 16 8.4 Device Functional Modes........................................ 18 8.5 Programming........................................................... 18 8.6 Register Maps ......................................................... 20 9 Applications and Implementation ...................... 24 9.1 Application Information............................................ 24 9.2 Typical Application .................................................. 24 10 Power Supply Recommendations ..................... 32 11 Layout................................................................... 32 11.1 Layout Guidelines ................................................. 32 11.2 Layout Example ........


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