TPS62746 Series
Ultra-low-power DCDC converter with Vin-switch in WCSP
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Voltage - Input▲▼ | Voltage - Input▲▼ | Supplied Contents | Voltage - Output▲▼ | Utilized IC / Part | Board Type | Main Purpose | Current - Output▲▼ | Outputs and Type | Outputs and Type▲▼ | Frequency - Switching▲▼ | Output Type | Voltage - Input (Max)▲▼ | Synchronous Rectifier▲▼ | Function | Number of Outputs▲▼ | Topology | Mounting Type | Output Configuration | Supplier Device Package | Package / Case | Voltage - Input (Min)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Output (Min/Fixed)▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS62746EVM-706TPS62746 DCS-Control™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board | 5.5 V | 2.1500000953674316 V | Board(s) | 1.2000000476837158 V, 1.7999999523162842 V | TPS62746 | Fully Populated | DC/DC, Step Down | 0.30000001192092896 A | Non-Isolated | 1 ul | 1200000 Hz | ||||||||||||||
Texas Instruments TPS62746YFPRBuck Switching Regulator IC Positive Programmable 1.2V, 1.8V 1 Output 300mA 8-XFBGA, DSBGA | 0.30000001192092896 A | 1200000 Hz | Programmable | 5.5 V | Step-Down | 1 ul | Buck | Surface Mount | Positive | 8-DSBGA | 8-XFBGA, DSBGA | 2.1500000953674316 V | 85 °C | -40 °C | 1.2000000476837158 V, 1.7999999523162842 V | ||||||||||
Texas Instruments TPS62746YFPTBuck Switching Regulator IC Positive Programmable 1.2V, 1.8V 1 Output 300mA 8-XFBGA, DSBGA | 0.30000001192092896 A | 1200000 Hz | Programmable | 5.5 V | Step-Down | 1 ul | Buck | Surface Mount | Positive | 8-DSBGA | 8-XFBGA, DSBGA | 2.1500000953674316 V | 85 °C | -40 °C | 1.2000000476837158 V, 1.7999999523162842 V |
Key Features
• Input voltage range VINfrom 2.15 V to 5.5 VInput voltage range down to 2.0 V once started300-mA output current360-nA operational quiescent currentUp to 90% efficiency at 10-µA output currentPower save mode operationSelectable output voltages1.2 V and 1.8 VOutput voltage discharge1-mA /150-Ω integrated input voltage switchLow output voltage rippleAutomatic transition to no ripple 100% modeRF friendly DCS-Control™Total solution size < 10 mm2Small 1.6-mm × 0.9-mm, 8-ball WCSP packageInput voltage range VINfrom 2.15 V to 5.5 VInput voltage range down to 2.0 V once started300-mA output current360-nA operational quiescent currentUp to 90% efficiency at 10-µA output currentPower save mode operationSelectable output voltages1.2 V and 1.8 VOutput voltage discharge1-mA /150-Ω integrated input voltage switchLow output voltage rippleAutomatic transition to no ripple 100% modeRF friendly DCS-Control™Total solution size < 10 mm2Small 1.6-mm × 0.9-mm, 8-ball WCSP package
Description
AI
The TPS62746 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62746 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2coin cell.
The TPS62746 provides two programmable output voltages of 1.2V and 1.8V selectable by one voltage select pin. The TPS62746 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.
The TPS62746 has an integrated 1-mA switch that connects the supply voltage at pin VIN to the output VINSW. This low current switch can be used to disconnect a resistor divider from the input supply typically being used to measure the input voltage with an ADC.
The TPS62746 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62746 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2coin cell.
The TPS62746 provides two programmable output voltages of 1.2V and 1.8V selectable by one voltage select pin. The TPS62746 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.
The TPS62746 has an integrated 1-mA switch that connects the supply voltage at pin VIN to the output VINSW. This low current switch can be used to disconnect a resistor divider from the input supply typically being used to measure the input voltage with an ADC.