TPS62120 Series

15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control

Catalog

15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control

Part	Frequency - Switching	Board Type	Supplied Contents	Current - Output	Regulator Topology	Voltage - Output [Max]	Voltage - Output [Min]	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Contents	Utilized IC / Part	Outputs and Type	Outputs and Type	Frequency - Switching [Max]	Supplier Device Package	Output Configuration	Number of Outputs	Package / Case	Function	Mounting Type	Voltage - Input (Min) [Min]	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Voltage - Input (Max) [Max]	Topology
Texas Instruments TPS62120EVM-640	800 kHz	Fully Populated	Board(s)	75 mA	Buck	5.5 V	1.2 V	15 V	2 V	DC/DC Step Down	Board(s)	TPS62120	1 Non-Isolated Output Non-Isolated	1
Texas Instruments TPS62120DCNR				75 mA											800 kHz	SOT-23-8	Positive	1	SOT-23-8	Step-Down	Surface Mount	2 V	Adjustable	85 °C	-40 °C	1.2 V	5.5 V	15 V	Buck
Texas Instruments TPS62120DCNT				75 mA											800 kHz	SOT-23-8	Positive	1	SOT-23-8	Step-Down	Surface Mount	2 V	Adjustable	85 °C	-40 °C	1.2 V	5.5 V	15 V	Buck

Catalog

15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control

Key Features

• Wide Input Voltage Range: 2 V to 15 VUp to 96% EfficiencyPower Save Mode With 11-µA Quiescent CurrentOutput Current 75 mAOutput Voltage Range: 1.2 V to 5.5 VUp to 800-kHz Switch FrequencySynchronous Converter, No External RectifierLow Output Ripple Voltage100% Duty Cycle for Lowest DropoutSmall SOT 8-Pin (TPS62120) and 2-mm × 2-mmDFN 6-Pin (TPS62122) PackageInternal Soft StartPower Good Open Drain Output (TPS62120)Open-Drain Output for Output Discharge(TPS62120)2.5-V Rising and 1.85-V Falling UVLO ThresholdsWide Input Voltage Range: 2 V to 15 VUp to 96% EfficiencyPower Save Mode With 11-µA Quiescent CurrentOutput Current 75 mAOutput Voltage Range: 1.2 V to 5.5 VUp to 800-kHz Switch FrequencySynchronous Converter, No External RectifierLow Output Ripple Voltage100% Duty Cycle for Lowest DropoutSmall SOT 8-Pin (TPS62120) and 2-mm × 2-mmDFN 6-Pin (TPS62122) PackageInternal Soft StartPower Good Open Drain Output (TPS62120)Open-Drain Output for Output Discharge(TPS62120)2.5-V Rising and 1.85-V Falling UVLO Thresholds

Description

The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors. The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications. With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation. In shutdown mode, the device is turned off. An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation. The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor. The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package. The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors. The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications. With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation. In shutdown mode, the device is turned off. An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation. The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor. The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.