Calculation tool
Data sheet
TPS63031
- Input voltage range: 1.8 V to 5.5 V
- Fixed and adjustable output voltage options from 1.2 V to 5.5 V
- Up to 96% efficiency
- 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)
- Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
- Automatic transition between step-down and boost mode
- Device quiescent current less than 50 µA
- Power-save mode for improved efficiency at low-output power
- Forced fixed frequency operation and synchronization possible
- Load disconnect during shutdown
- Overtemperature protection
- Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)
The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low-load currents, the converter enters power-save mode to maintain high efficiency over a wide load current range. The power-save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 1000 mA. 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 TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5-mm × 2.5-mm (DSK).
Technical documentation
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View all 10 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS6303x High Efficiency Single Inductor Buck-Boost Converter With 1-A Switches datasheet (Rev. D) | PDF | HTML | 30 Mar 2020 |
| 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 | QFN and SON PCB Attachment (Rev. B) | PDF | HTML | 24 Aug 2018 | |
| Application note | Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) | 09 Jul 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| White paper | Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) | 28 Mar 2012 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 17 Jun 2011 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 15 Sep 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Simulation model
TPS63031 Unencrypted PSpice Transient Model Package (Rev. A)
SLVMBA5A.ZIP (63 KB) - PSpice Model
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs
TIDM-AIRQUALITYSENSOR — MSP430FR4133 Microcontroller Air Quality Sensor Reference Design
In this reference design, a simple air quality monitor is created and implemented using the particulate matter 2.5 level. This design uses MSP430FR4133 microcontroller (MCU) and Sharp™ DN7C3CA006 PM2.5 sensor. This ultra-low-power centric design of the MSP430™ MCU coupled with (...)
| Package | Pins | Download |
|---|---|---|
| WSON (DSK) | 10 | View options |
Ordering & quality
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