TPS62730 Series
Step Down Converter with Bypass Mode for Ultra Low Power Wireless Applications
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Supplied Contents | Utilized IC / Part | Voltage - Input▲▼ | Voltage - Input▲▼ | Outputs and Type | Outputs and Type▲▼ | Board Type | Main Purpose | Voltage - Output▲▼ | Current - Output▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS62730EVM-726TPS62730 - DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board | Board(s) | TPS62730 | 1.899999976158142 V | 3.900000095367432 V | Non-Isolated | 1 ul | Fully Populated | DC/DC, Step Down | 2.0999999046325684 V | 0.10000000149011612 A |
Key Features
• Input Voltage Range VINFrom 1.9 V to 3.9 VTyp. 30-nA Ultra Low-Power Bypass ModeTyp. 25-µA DC-DC Quiescent CurrentInternal Feedback Divider DisconnectTypical 2.1-Ω: Bypass Switch Between VINand VOUTAutomatic Transition from DC-DC to Bypass ModeUp to 3-MHz Switch FrequencyUp to 95% DC-DC EfficiencyOpen-Drain Status Output STATOutput Peak Current up to 100 mAFixed Output Voltages 1.9 V, 2.05 V, 2.1 V, 2.3 VSmall External Output Filter Components 2.2 µH and 2.2 µFOptimized For Low Output Ripple VoltageSmall 1 × 1.5 × 0.6-mm3USON Package12-mm2Minimum Solution SizeInput Voltage Range VINFrom 1.9 V to 3.9 VTyp. 30-nA Ultra Low-Power Bypass ModeTyp. 25-µA DC-DC Quiescent CurrentInternal Feedback Divider DisconnectTypical 2.1-Ω: Bypass Switch Between VINand VOUTAutomatic Transition from DC-DC to Bypass ModeUp to 3-MHz Switch FrequencyUp to 95% DC-DC EfficiencyOpen-Drain Status Output STATOutput Peak Current up to 100 mAFixed Output Voltages 1.9 V, 2.05 V, 2.1 V, 2.3 VSmall External Output Filter Components 2.2 µH and 2.2 µFOptimized For Low Output Ripple VoltageSmall 1 × 1.5 × 0.6-mm3USON Package12-mm2Minimum Solution Size
Description
AI
The TPS62730 is a high frequency synchronous step-down DC-DC converter optimized for ultra low-power wireless applications. The device is optimized to supply TI’s Low-Power Wireless sub 1-GHz and 2.4-GHz RF transceivers and System-On-Chip (SoC) solutions. The TPS62730 reduces the current consumption drawn from the battery during TX and RX mode by a high efficient step-down voltage conversion. The device provides an output current of up to 100 mA and allows the use of tiny and low-cost chip inductors and capacitors. With an input voltage range of 1.9 V to 3.9 V, the device supports Li-primary battery chemistries such as Li-SOCl2, Li-SO2, Li-MnO2, and also two cell alkaline batteries.
The TPS62730 features an Ultra Low-Power bypass mode with typical 30-nA current consumption to support sleep and low power modes of TI’s CC2540BluetoothLow Energy and CC430 SoC solutions. In this bypass mode, the output capacitor of the DC-DC converter is connected through an integrated typical 2.1-Ω bypass switch to the battery.
In DC-DC operation mode the device provides a fixed output voltage to the system. With a switch frequency up to 3 MHz, the TPS62730 features low output ripple voltage and low noise even with a small 2.2-µF output capacitor. The automatic transition into bypass mode during DC-DC operation prevents an increase of output ripple voltage and noise once the DC-DC converter operates close to 100% duty cycle. The device automatically enters bypass mode once the battery voltage falls below the transition threshold VIT BYP. The TPS62730 is available in a 1 × 1.5-mm26-pin USON package.
The TPS62730 is a high frequency synchronous step-down DC-DC converter optimized for ultra low-power wireless applications. The device is optimized to supply TI’s Low-Power Wireless sub 1-GHz and 2.4-GHz RF transceivers and System-On-Chip (SoC) solutions. The TPS62730 reduces the current consumption drawn from the battery during TX and RX mode by a high efficient step-down voltage conversion. The device provides an output current of up to 100 mA and allows the use of tiny and low-cost chip inductors and capacitors. With an input voltage range of 1.9 V to 3.9 V, the device supports Li-primary battery chemistries such as Li-SOCl2, Li-SO2, Li-MnO2, and also two cell alkaline batteries.
The TPS62730 features an Ultra Low-Power bypass mode with typical 30-nA current consumption to support sleep and low power modes of TI’s CC2540BluetoothLow Energy and CC430 SoC solutions. In this bypass mode, the output capacitor of the DC-DC converter is connected through an integrated typical 2.1-Ω bypass switch to the battery.
In DC-DC operation mode the device provides a fixed output voltage to the system. With a switch frequency up to 3 MHz, the TPS62730 features low output ripple voltage and low noise even with a small 2.2-µF output capacitor. The automatic transition into bypass mode during DC-DC operation prevents an increase of output ripple voltage and noise once the DC-DC converter operates close to 100% duty cycle. The device automatically enters bypass mode once the battery voltage falls below the transition threshold VIT BYP. The TPS62730 is available in a 1 × 1.5-mm26-pin USON package.