Specification	TPS7A2150PQWDRBRQ1

Control Features	Enable, Current Limit
Current - Output	500 mA
Current - Quiescent (Iq)	18 µA
Current - Supply (Max) [Max]	3.5 mA
Grade	Automotive
Mounting Type	Wettable Flank, Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	8-VDFN Exposed Pad
Protection Features	Under Voltage Lockout (UVLO), Over Temperature, Over Current
PSRR	91 dB
PSRR [Max]	90 dB
PSRR [Min]	50 dB
Qualification	AEC-Q100
Supplier Device Package	8-SON (3x3)
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max) [Max]	0.355 V

TPS7A21-Q1 Series

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

Part	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Grade	Qualification	Package / Case	Voltage Dropout (Max) [Max]	Supplier Device Package	Output Type	Current - Quiescent (Iq)	Number of Regulators	Control Features	Output Configuration	Protection Features	PSRR [Max]	PSRR	PSRR [Min]	Voltage - Output (Min/Fixed)	Current - Output	Voltage - Input (Max) [Max]	Current - Supply (Max) [Max]
Texas Instruments TPS7A2110PQWDRBRQ1	150 °C	-40 °C	Surface Mount Wettable Flank	Automotive	AEC-Q100	8-VDFN Exposed Pad	0.605 V	8-SON (3x3)	1.81 mOhm	15 µA	1	Current Limit Enable	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	90 dB	91 dB	50 dB	1 V	500 mA	6 V
Texas Instruments TPS7A2128PQWDRBRQ1	150 °C	-40 °C	Surface Mount Wettable Flank	Automotive	AEC-Q100	8-VDFN Exposed Pad	0.265 V	8-SON (3x3)	1.81 mOhm	15 µA	1	Current Limit Enable	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	90 dB	91 dB	50 dB	2.8 V	500 mA	6 V
Texas Instruments TPS7A2150PQWDRBRQ1	125 °C	-40 °C	Surface Mount Wettable Flank	Automotive	AEC-Q100	8-VDFN Exposed Pad	0.355 V	8-SON (3x3)	1.81 mOhm	18 µA	1	Current Limit Enable	Positive	Over Current Over Temperature Under Voltage Lockout (UVLO)	90 dB	91 dB	50 dB	5 V	500 mA	6 V	3.5 mA
Texas Instruments TPS7A2115PQWDRBRQ1	125 °C	-40 °C	Surface Mount Wettable Flank	Automotive	AEC-Q100	8-VDFN Exposed Pad	0.355 V	8-SON (3x3)	1.81 mOhm	18 µA	1	Current Limit Enable Soft Start	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	90 dB	91 dB	50 dB	1.5 V	500 mA	6 V	3.5 mA

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.94
		10	$ 0.83
		25	$ 0.78
		100	$ 0.63
		250	$ 0.59
		500	$ 0.50
		1000	$ 0.40
		2500	$ 0.36
	Digi-Reel®	1	$ 0.94
		10	$ 0.83
		25	$ 0.78
		100	$ 0.63
		250	$ 0.59
		500	$ 0.50
		1000	$ 0.40
		2500	$ 0.36
	Tape & Reel (TR)	5000	$ 0.34
		10000	$ 0.33
		15000	$ 0.33
		25000	$ 0.31
Texas Instruments	LARGE T&R	1	$ 0.61
		100	$ 0.47
		250	$ 0.35
		1000	$ 0.25

Description

General part information

TPS7A21-Q1 Series

The TPS7A21-Q1 is a small, low-dropout (LDO) linear voltage regulator that sources 500mA 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 in automotive applications. Innovative design techniques result in low-noise performance without the addition of an external noise bypass capacitor. The TPS7A21-Q1 low quiescent current is a good choice for low-power systems. The 2.0V to 6.0V input voltage range and 0.8V to 5.5V output voltage range support a variety of system requirements.

An internal soft-start circuit helps control 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. This circuit also helps eliminate external components that are otherwise required to pull down the EN input.

Documents

Technical documentation and resources

TPS7A21-Q1 Automotive, 500mA, Low-Noise, Low-IQ , High-PSRR LDO datasheet (Rev. C)

Data sheet