Calculation tool
Data sheet
TPS630251
- Real Buck or Boost Operation with Automatic and
Seamless Transition Between Buck and Boost
Operation - 2.3 V to 5.5 V input voltage range
- 2 A Continuous Output Current : VIN≥ 2.5 V,
VOUT= 3.3 V - Adjustable and Fixed Output Voltage
- Efficiency up to 95% in Buck or Boost Mode and
up to 97% when VIN=VOUT - 2.5MHz Typical Switching Frequency
- 35-µA Operating Quiescent Current
- Integrated Soft Start
- Power Save Mode
- True Shutdown Function
- Output Capacitor Discharge Function
- Over-Temperature Protection and Over-Current
Protection - Wide Capacitance Selection
- Small 1.766 mm × 2.086 mm, 20-pin WCSP and
2.5 mm × 3 mm, 14-pin Hot Rod
The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.
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Technical documentation
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View all 8 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | High Current Single Inductor Buck-Boost Converter datasheet (Rev. B) | 16 Jun 2014 | |
| Application note | 4스위치 벅 부스트 전력 단계의 기본 계산 (Rev. C) | PDF | HTML | 02 Oct 2023 | |
| Application note | Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) | PDF | HTML | 09 Jun 2021 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 11 Dec 2018 | ||
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 19 Sep 2018 | ||
| Application note | Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) | 09 Jul 2018 | ||
| User guide | TPS63025xEVM-553 | 25 Apr 2014 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 17 Jun 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS630250EVM-553 — TPS630250 DSBGA evaluation module 4-A switch buck-boost regulator
The TPS63025xEVM-553 enables test and evaluation of the Texas Instruments’ TPS63025 device family, a 2.5MHz (typ.) fully integrated buck-boost converter.
The TPS63025x devices are high efficient, low quiescent current devices in buck-boost topology. They are suitable for applications where the input (...)
User guide: PDF
Simulation model
TPS630251 Unencrypted PSpice Transient Model Package (Rev. A)
SLVMAJ8A.ZIP (82 KB) - PSpice Model
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFF) | 20 | Ultra Librarian |
Ordering & quality
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Support & training
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