Specification	TPS7A5301BRPSR

Control Features	Soft Start, Current Limit, Enable, Power Good
Current - Output	3 A
Current - Quiescent (Iq)	4.3 mA
Current - Supply (Max) [Max]	5.5 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	12-VFQFN
Protection Features	Short Circuit, Over Temperature, Under Voltage Lockout (UVLO), Over Current
PSRR [Max]	53 dB
PSRR [Min]	48 dB
Supplier Device Package	12-VQFN-HR
Supplier Device Package [x]	2.2
Supplier Device Package [y]	2.5
Voltage - Input (Max) [Max]	6.5 V
Voltage - Output (Max) [Max]	5.15 V
Voltage - Output (Min/Fixed) [Min]	0.5 V
Voltage Dropout (Max) [Max]	0.375 V

TPS7A53B Series

3-A, 1.1-V, low-VIN, low-noise high-accuracy ultra-low-dropout voltage regulator with 0.5-V low VREF

Part	Current - Output	Voltage - Output (Max) [Max]	Current - Quiescent (Iq)	PSRR [Max]	PSRR [Min]	Protection Features	Mounting Type	Voltage - Output (Min/Fixed) [Min]	Supplier Device Package	Supplier Device Package [x]	Supplier Device Package [y]	Operating Temperature [Min]	Operating Temperature [Max]	Current - Supply (Max) [Max]	Number of Regulators	Output Type	Control Features	Output Configuration	Package / Case	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]
Texas Instruments TPS7A5301BRPSR	3 A	5.15 V	4.3 mA	53 dB	48 dB	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Surface Mount	0.5 V	12-VQFN-HR	2.2	2.5	-40 °C	125 °C	5.5 mA	1	Adjustable	Current Limit Enable Power Good Soft Start	Positive	12-VFQFN	6.5 V	0.375 V

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	$ 3.19
		10	$ 2.86
		25	$ 2.70
		100	$ 2.34
		250	$ 2.22
		500	$ 2.00
		1000	$ 1.68
	Digi-Reel®	1	$ 3.19
		10	$ 2.86
		25	$ 2.70
		100	$ 2.34
		250	$ 2.22
		500	$ 2.00
		1000	$ 1.68
	Tape & Reel (TR)	3000	$ 1.60
		6000	$ 1.54
Texas Instruments	LARGE T&R	1	$ 2.40
		100	$ 2.11
		250	$ 1.48
		1000	$ 1.19

Description

General part information

TPS7A53B Series

The TPS7A53B is a low-noise (4.6µVRMS), ultra-low dropout linear regulator (LDO) capable of sourcing 3A with only 110mV of maximum dropout. The device output voltage is adjustable from 0.5V to 5.15V using an external resistor divider.

The combination of low noise (4.6µVRMS), high PSRR, and high output current capability makes the TPS7A53B a great solution for powering noise-sensitive components. Applications include high-speed communications, video, medical, or test and measurement. The high PSRR and low noise performance of this device limits power-supply-generated phase noise and clock jitter, making this device a good choice for powering high-performance serializers and deserializers (SerDes), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). Specifically, RF amplifiers benefit from the high performance and 5.15V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input, low-output (LILO) voltage operation, the exceptional accuracy (0.5% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A53B provides optimal system performance.

Documents

Technical documentation and resources

Parallel LDO Architecture Design Using Ballast Resistors

White paper

Demystifying LDO Turn-On (startup) Time

White paper

TPS7A53B 3A, Low-Input Voltage, Low-Noise, High-Accuracy, Low-Dropout (LDO) Voltage Regulator datasheet (Rev. A)

Data sheet

Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast

White paper