TPS62770 Series
Tiny Single-chip Dual Solution with 360nA Iq Buck and up to 15V Boost in WCSP
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Main Purpose | Regulator Topology | Voltage - Input▲▼ | Voltage - Input▲▼ | Board Type | Utilized IC / Part | Outputs and Type▲▼ | Outputs and Type | Supplied Contents | Operating Temperature▲▼ | Operating Temperature▲▼ | Number of Outputs▲▼ | Voltage - Input (Max)▲▼ | Output Configuration | Current - Output▲▼ | Package / Case | Voltage - Output (Max)▲▼ | Topology | Output Type | Synchronous Rectifier▲▼ | Frequency - Switching▲▼ | Supplier Device Package | Mounting Type | Voltage - Input (Min)▲▼ | Function |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS62770EVM-734TPS62770 - DC/DC, Step Up or Down 2, Non-Isolated Outputs Evaluation Board | DC/DC, Step Up or Down | Buck-Boost | 2.5 V | 5.5 V | Fully Populated | TPS62770 | 2 ul | Non-Isolated | Board(s) | ||||||||||||||||
Texas Instruments TPS62770YFPTBuck, Boost Switching Regulator IC Positive Programmable 1V, 4.5V (12V) 2 Output 300mA, 30mA, 100mA, 200mA 16-XFBGA, DSBGA | 85 °C | -40 °C | 2 ul | 5.5 V | Positive | 0.029999999329447743 A, 0.10000000149011612 A, 0.20000000298023224 A, 0.30000001192092896 A | 16-XFBGA, DSBGA | 3 V, 15 V | Boost, Buck | Programmable | 1050000 Hz | 16-DSBGA (1.6x1.6) | Surface Mount | 2.5 V | Step-Down, Step-Up | ||||||||||
Texas Instruments TPS62770YFPRBuck, Boost Switching Regulator IC Positive Programmable 1V, 4.5V (12V) 2 Output 300mA, 30mA, 100mA, 200mA 16-XFBGA, DSBGA | 85 °C | -40 °C | 2 ul | 5.5 V | Positive | 0.029999999329447743 A, 0.10000000149011612 A, 0.20000000298023224 A, 0.30000001192092896 A | 16-XFBGA, DSBGA | 3 V, 15 V | Boost, Buck | Programmable | 1050000 Hz | 16-DSBGA (1.6x1.6) | Surface Mount | 2.5 V | Step-Down, Step-Up |
Key Features
• VIN Range 2.5 V to 5.5 V370 nA Iq Step-Down Converter8 Selectable Output Voltages (1.0V to 3.0V)300 mA Output CurrentOutput Discharge FunctionSlew Rate Controlled Load Switch with DischargeFunctionDual Mode Step-Up ConverterLoad DisconnectConstant Output Voltage Adjustable up to 15 V(VFB0.8 V) / 12 V FixedLED Current Driver with PWM to CurrentConversion (max VFBVoltage 200 mV @ D =100%)Tiny 16pin 1.58 × 1.58mm WCSP Package 0.4mmpitchVIN Range 2.5 V to 5.5 V370 nA Iq Step-Down Converter8 Selectable Output Voltages (1.0V to 3.0V)300 mA Output CurrentOutput Discharge FunctionSlew Rate Controlled Load Switch with DischargeFunctionDual Mode Step-Up ConverterLoad DisconnectConstant Output Voltage Adjustable up to 15 V(VFB0.8 V) / 12 V FixedLED Current Driver with PWM to CurrentConversion (max VFBVoltage 200 mV @ D =100%)Tiny 16pin 1.58 × 1.58mm WCSP Package 0.4mmpitch
Description
AI
The TPS62770 is a tiny power solution for wearable applications including a 370nA ultra low Iq step-down converter, a slew rate controlled load switch and a dual mode step-up converter. The output voltage of the step-down converter can be selected with three VSEL pins between 1.0 V, 1.05 V, 1.1 V, 1.2 V, 1.8 V, 1.9 V, 2.0 V and 3.0 V. The output voltage can be changed during operation. In shutdown mode, the output of the step-down converter is pulled to GND. The integrated load switch is internally connected to the output of the step-down converter and features slew rate control during turn on phase. Once turned off, its output is connected to GND.
The dual mode step-up converter can generate a constant output voltage up to 15 V, such as PMOLED supply; or, a constant output current, such as LED back light supply. The output voltage can be adjusted up to 15 V with external resistors, or set to fixed 12 V by connecting the FB pin to VIN. The device features an internal over voltage protection of 17.7 V in case the FB node is left open or tight to GND. It includes an internal rectifier and load disconnect function. When used as constant output current driver, the device offers a PWM to analog converter to scale down the reference voltage according to the duty cycle of the PWM signal.
The device is available in a small 16pin 0.4mm pitch WCSP package.
The TPS62770 is a tiny power solution for wearable applications including a 370nA ultra low Iq step-down converter, a slew rate controlled load switch and a dual mode step-up converter. The output voltage of the step-down converter can be selected with three VSEL pins between 1.0 V, 1.05 V, 1.1 V, 1.2 V, 1.8 V, 1.9 V, 2.0 V and 3.0 V. The output voltage can be changed during operation. In shutdown mode, the output of the step-down converter is pulled to GND. The integrated load switch is internally connected to the output of the step-down converter and features slew rate control during turn on phase. Once turned off, its output is connected to GND.
The dual mode step-up converter can generate a constant output voltage up to 15 V, such as PMOLED supply; or, a constant output current, such as LED back light supply. The output voltage can be adjusted up to 15 V with external resistors, or set to fixed 12 V by connecting the FB pin to VIN. The device features an internal over voltage protection of 17.7 V in case the FB node is left open or tight to GND. It includes an internal rectifier and load disconnect function. When used as constant output current driver, the device offers a PWM to analog converter to scale down the reference voltage according to the duty cycle of the PWM signal.
The device is available in a small 16pin 0.4mm pitch WCSP package.