TPS720102 Series
350-mA, low-VIN (1.1-V), high-PSRR, low-IQ, low-dropout voltage regulator with enable
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
350-mA, low-VIN (1.1-V), high-PSRR, low-IQ, low-dropout voltage regulator with enable
| Part | PSRR [Min] | PSRR [Max] | Current - Quiescent (Iq) | Voltage Dropout (Max) [Max] | Current - Supply (Max) [Max] | Current - Output | Package / Case | Protection Features | Output Configuration | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Number of Regulators | Control Features | Voltage - Output (Min/Fixed) | Output Type | Supplier Device Package | Voltage - Input (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS720102YZUT | 50 dB | 85 dB | 38 µA | 0.2 V | 80 µA | 350 mA | 6-UFBGA, DSBGA | Over Current, Over Temperature, Under Voltage Lockout (UVLO) | Positive | Surface Mount | 125 ¯C | -40 °C | 1 | Enable | 1.02 V | 27.03 °C/W | 5-DSBGA (0.96x1.33) | 4.5 V |
Texas Instruments TPS720102YZUR | 50 dB | 85 dB | 38 µA | 0.2 V | 80 µA | 350 mA | 6-UFBGA, DSBGA | Over Current, Over Temperature, Under Voltage Lockout (UVLO) | Positive | Surface Mount | 125 ¯C | -40 °C | 1 | Enable | 1.02 V | 27.03 °C/W | 5-DSBGA (0.96x1.33) | 4.5 V |
Key Features
• 350-mA High-Performance LDOLow Quiescent Current: 38 µAExcellent Load Transient Response:±15 mV for ILOAD= 0 mA to 350 mA in 1 µsExcellent Line Transient Response:ΔVOUT= ±2 mV for ΔVBIAS= ±600 mV in 1 µsΔVOUT= ±200 µV for ΔVIN= ±400 mV in 1 µsLow Noise: 48 µVRMS(10 Hz to 100 kHz)80 dB VINPSRR (10 Hz to 10 kHz)70 dB VBIASPSRR (10 Hz to 10 kHz)Fast Start-Up Time: 140 µsBuilt-In Soft-Start With Monotonic VOUTRise and Start-Up Current Limited to 100 mA + ILOADOvercurrent and Thermal ProtectionLow Dropout: 110 mV at ILOAD= 350 mAStable with 2.2-µF Output CapacitorAvailable in 1.33 mm × 0.96 mm DSBGA-5 and 2 mm × 2 mm SON-6 Packages350-mA High-Performance LDOLow Quiescent Current: 38 µAExcellent Load Transient Response:±15 mV for ILOAD= 0 mA to 350 mA in 1 µsExcellent Line Transient Response:ΔVOUT= ±2 mV for ΔVBIAS= ±600 mV in 1 µsΔVOUT= ±200 µV for ΔVIN= ±400 mV in 1 µsLow Noise: 48 µVRMS(10 Hz to 100 kHz)80 dB VINPSRR (10 Hz to 10 kHz)70 dB VBIASPSRR (10 Hz to 10 kHz)Fast Start-Up Time: 140 µsBuilt-In Soft-Start With Monotonic VOUTRise and Start-Up Current Limited to 100 mA + ILOADOvercurrent and Thermal ProtectionLow Dropout: 110 mV at ILOAD= 350 mAStable with 2.2-µF Output CapacitorAvailable in 1.33 mm × 0.96 mm DSBGA-5 and 2 mm × 2 mm SON-6 Packages
Description
AI
The TPS720 family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response), while consuming a very low quiescent current of 38 µA.
The VBIASrail that powers the control circuit of the LDO draws very low current (on the order of the quiescent current of the LDO) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN, which can be a lower voltage than VBIAS; it can be as low as VOUT+ VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VINcan be an output of a high-efficiency, DC-DC step-down regulator.
The TPS720 supports a novel feature in which the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from VBIASunder this condition. This feature is particularly useful in power-saving applications where the DC-DC converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.
The TPS720 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720 has the unique feature of providing a monotonic VOUTrise (overshoot limited to 3%) with VINinrush current limited to 100 mA + ILOADwith an output capacitor of 2.2 µF.
The TPS720 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also available in a SON-8 package. This family of devices is fully specified over the temperature range ofTJ= –40°C to 125°C.
The TPS720 family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response), while consuming a very low quiescent current of 38 µA.
The VBIASrail that powers the control circuit of the LDO draws very low current (on the order of the quiescent current of the LDO) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN, which can be a lower voltage than VBIAS; it can be as low as VOUT+ VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VINcan be an output of a high-efficiency, DC-DC step-down regulator.
The TPS720 supports a novel feature in which the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from VBIASunder this condition. This feature is particularly useful in power-saving applications where the DC-DC converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.
The TPS720 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720 has the unique feature of providing a monotonic VOUTrise (overshoot limited to 3%) with VINinrush current limited to 100 mA + ILOADwith an output capacitor of 2.2 µF.
The TPS720 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also available in a SON-8 package. This family of devices is fully specified over the temperature range ofTJ= –40°C to 125°C.