TPS65263
4.5V to 18V Input Voltage, 3A/2A/2A Output Current Step-Down Converter with I2C controlled DVS.
TPS65263
- Operating input voltage range 4.5- to 18-V continuous output current 3 A/2 A/2 A
- I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V with 10-mV voltage step for each buck
- I 2C controlled VID voltage transition slew rate
- I 2C read back power-good status, overcurrent warning for each buck
- I 2C read back die temperature warning
- I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
- Feedback reference voltage 0.6 V ±1%
- Fixed 600-kHz frequency
- Dedicated enable and soft start pins for each buck
- Thermal overloading protection
The TPS65263 incorporates triple synchronous buck converters with 4.5- to 18-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus or battery. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates in 600 kHz with 180° out-of-phase between buck1 and buck2, buck3 (buck2 and buck3 run in phase).
The initial startup voltage of each buck can be set with external feedback resistors. The output voltage of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I 2C controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.
Each buck in TPS65263 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the power good status, overcurrent warning and die temperature warning.
The TPS65263 features overvoltage, overcurrent, short-circuit, and overtemperature protection.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | TPS65263, 4.5-V to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter with I2C Controlled Dynamic Voltage Scaling datasheet (Rev. C) | PDF | HTML | 17 May 2023 |
EVM User's guide | TPS65263EVM-645 PMIC with I2C Controlled DVS Evaluation Module (Rev. A) | 30 May 2019 | ||
Application note | Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) | PDF | HTML | 01 Apr 2019 | |
Technical article | There are more ways than you think to reduce conducted EMI | PDF | HTML | 17 Apr 2018 | |
Application note | TPS65250/1/2/3 LAYOUT GUIDE | 15 Jan 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
TPS65263EVM-645 — TPS65263EVM Evaluation Module
The TPS65263EVM-645 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65263. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.
TPS65263 Unencrypted PSpice Transient Model Package (Rev. A)
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RHB) | 32 | Ultra Librarian |
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