TPS7A2133 Series

500mA, low-noise ultra-low-IQ high-PSRR low-dropout (LDO) voltage regulator

Catalog

500mA, low-noise ultra-low-IQ high-PSRR low-dropout (LDO) voltage regulator

Part	Current - Quiescent (Iq)	PSRR [Max]	PSRR [Min]	Supplier Device Package	Output Type	Voltage - Input (Max) [Max]	Mounting Type	Control Features	Current - Output	Voltage - Output (Min/Fixed)	Number of Regulators	Output Configuration	Protection Features	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Voltage Dropout (Max) [Max]
Texas Instruments TPS7A2133PYWDJ	15 µA	65 dB	50 dB	4-WCSP (0.63x0.63)	1.81 mOhm	6 V	Surface Mount	Current Limit Enable	500 mA	3.3 V	1	Positive	Over Current Over Temperature UVLO	-40 °C	125 ¯C	4-XFBGA WLCSP	0.175 V

Catalog

500mA, low-noise ultra-low-IQ high-PSRR low-dropout (LDO) voltage regulator

Key Features

• Very low IQ: 6.5 µAInput voltage range: 2.0 V to 6.0 VOutput voltage range: 0.8 V to 5.5 V (50-mV steps)High PSRR: 91 dB at 1 kHzLow output voltage noise: 7.7 µVRMSLow dropout:175 mV (maximum) at 500 mA (2.5-V VOUT)Smart EN pulldownOutput voltage tolerance:±1.5% (line, load, and temperature)Supports wide range of ceramic capacitors:1 µF to 200 µFOperating junction temperature: –40°C to +125°CPackage:0.602-mm × 0.602-mm power DSBGAVery low IQ: 6.5 µAInput voltage range: 2.0 V to 6.0 VOutput voltage range: 0.8 V to 5.5 V (50-mV steps)High PSRR: 91 dB at 1 kHzLow output voltage noise: 7.7 µVRMSLow dropout:175 mV (maximum) at 500 mA (2.5-V VOUT)Smart EN pulldownOutput voltage tolerance:±1.5% (line, load, and temperature)Supports wide range of ceramic capacitors:1 µF to 200 µFOperating junction temperature: –40°C to +125°CPackage:0.602-mm × 0.602-mm power DSBGA

Description

The TPS7A21 is an ultra-small, low-dropout (LDO) linear voltage regulator that can source 500 mA of output current. The device provides low noise, high PSRR, and excellent load and line transient performance to meet the requirements of RF and other sensitive analog circuits. Innovative design techniques result in low-noise performance without the addition of an external noise bypass capacitor. With the device low quiescent current, the TPS7A21 is a good choice for battery-powered systems. The 2.0-V to 6.0-V input voltage range and 0.8-V to 5.5-V output voltage range support a variety of system requirements. The internal precision reference circuit enables excellent accuracy; the maximum output voltage tolerance is 1.5% over load, line, and temperature variations. An internal soft-start circuit helps control the inrush current, thus minimizing the input voltage drop during start up. The LDO is stable with small ceramic capacitors, allowing for a small overall solution size. A smart enable input circuit with an internally controlled pulldown resistor keeps the LDO disabled even when the EN pin is unconnected and helps eliminate external components that are otherwise required to pull down the EN input. The TPS7A21 is an ultra-small, low-dropout (LDO) linear voltage regulator that can source 500 mA of output current. The device provides low noise, high PSRR, and excellent load and line transient performance to meet the requirements of RF and other sensitive analog circuits. Innovative design techniques result in low-noise performance without the addition of an external noise bypass capacitor. With the device low quiescent current, the TPS7A21 is a good choice for battery-powered systems. The 2.0-V to 6.0-V input voltage range and 0.8-V to 5.5-V output voltage range support a variety of system requirements. The internal precision reference circuit enables excellent accuracy; the maximum output voltage tolerance is 1.5% over load, line, and temperature variations. An internal soft-start circuit helps control the inrush current, thus minimizing the input voltage drop during start up. The LDO is stable with small ceramic capacitors, allowing for a small overall solution size. A smart enable input circuit with an internally controlled pulldown resistor keeps the LDO disabled even when the EN pin is unconnected and helps eliminate external components that are otherwise required to pull down the EN input.