Texas Instruments Buck-Boost Switching Regulator, 3.3V 1.2A Out, VSON-10
Texas Instruments fixed Buck-Boost switching regulator. 1.8V-5.5V input, 3.3V / 1.2A output. Up to 96% efficiency, VSON-10 package.
The Texas Instruments Buck-Boost Switching Regulator provides a highly efficient 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. It is capable of delivering output currents up to 1200mA, even when discharging a single-cell Li-ion or Li-polymer battery down to 2.5V or lower.
Based on a fixed frequency pulse width modulation (PWM) controller, this regulator uses synchronous rectification to achieve maximum efficiency, reaching up to 96%. At low load currents, the converter seamlessly enters power-save mode to maintain high efficiency across a wide load current range. This power-save mode can also be disabled, forcing the device to operate at a fixed switching frequency for applications that require it.
Key Features and Protection
- Automatic transition between step-down and boost mode
- Load disconnect during shutdown to minimise battery drain
- Overtemperature protection for enhanced safety
- Green product with no Sb/Br
The maximum average current in the switches is limited to a typical value of 1800mA. The output voltage is fixed internally on the chip, and the converter can be disabled to further minimise battery drain. Housed in a compact VSON-10 surface mount package, it measures 43mm in height, 33mm in width, and 15mm in depth, with a lightweight profile of just 0.109 grams.
- Portable Devices
- Power Management
- Audio
- Medical
- Output Type: Fixed
- Number of Outputs: 1
- Topology: Buck-Boost
- Input Voltage Min: 1.8V
- Input Voltage Max: 5.5V
- Max Output Current: 1.2A
- Output Voltage Nominal: 3.3V
- Output Voltage Min: 1.2V
- Output Voltage Max: 5.5V
- IC Case / Package: VSON-10
- IC Mounting: Surface Mount
- Switching Frequency: 1.5MHz
- Efficiency: 96%
- Operating Temperature Min: -40°C
- Operating Temperature Max: 85°C
- MSL: MSL 2 - 1 year
- Weight: 0.109 grams
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- Output Voltage Nom: 3.3V
- Output Voltage - Nom: 3.3V
- Switching Frequency Typ: 1.5MHz
- SVHC: No SVHC (27-Jun-2018)
- DC / DC Converter IC Case: VSON
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