company blog about TI TPS74701QDRCRQ1 Automotive 500mA Adjustable Ultra-Low-Dropout Voltage Regulator With Programmable Soft-Start

TI TPS74701QDRCRQ1 Automotive 500mA Adjustable Ultra-Low-Dropout Voltage Regulator With Programmable Soft-Start

Shenzhen Mingjiada Electronics Co., Ltd. has been supplying TI TPS74701QDRCRQ1 adjustable ultra-low dropout voltage regulator (LDO) for a long time. With its high performance and wide range of applications, this TPS74701QDRCRQ1 product is ideal for automotive electronics, industrial control and communication equipment.

Here are the details of the TI TPS74701QDRCRQ1 adjustable ultra-low dropout voltage regulator:

1,Product Description Of TPS74701QDRCRQ1
TPS74701QDRCRQ1 is a low-dropout regulator that features soft-start capability. This TPS74701QDRCRQ1 regulator use a low current bias input to power all internal control circuitry, allowing the NMOS pass transistor to regulate very low input and output voltages.

The use of an NMOS-pass transistor offers several critical advantages for many applications. Unlike a PMOS topology device, the output capacitor has lttle effect on loop stabilit. This architecture allows the TPS74701QDRCRQ1 to be stable with any capacitor type of value 2.2 μF or greater. Transient response is also superior to PMOS topologies, particularly for low VIN applications.

TPS74701QDRCRQ1 features a programmable voltage-controlled soft-start circuit that provides a smooth,monotonic start-up and limits start-up inrush currents that may be caused by large capacitive loads. A power- good (PG) output is available to allow supply monitoring and sequencing of other supplies. An enable (EN) pin with hysteresis and deglitch allows slow-ramping signals to be used for sequencing the device. The low VIN and VOUT capability allows for inexpensive, easy-to-design, and efficient linear regulation between the multiple supply voltages often present in processor-intensive systems.

TPS74701QDRCRQ1 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. The user-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current and the monotonic start-up is designed for powering many different types of processors. The enable input and power-good output allow easy sequencing with external regulators, allowing a solution to be configured that meets the sequencing requirements for a wide range of applications with special start-up requirements.

A precision reference and error amplifier deliver 0.95% accuracy over load, line, temperature, and process. The TPS74701QDRCRQ1 device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified per AEC-Q100.

2,Specification Of TPS74701QDRCRQ1
Output Current:500 mA
Number of Outputs:1 Output
Polarity:Positive
Input Voltage - Min:800 mV
Input Voltage - Max:5.5 V
PSRR / Ripple Rejection - Typ:60 dB
Output Type:Adjustable
Minimum Operating Temperature:- 40 C
Maximum Operating Temperature:+ 125 C
Dropout Voltage:50 mV
Dropout Voltage - Max:120 mV
Ib - Input Bias Current:2 mA
Line Regulation:0.03 %/V
Load Regulation:0.09 %/A
Moisture Sensitive:Yes
Operating Supply Current:1 mA
Output Voltage Range:800 mV to 3.6 V
Voltage Regulation Accuracy:2 %
Unit Weight:39.300 mg

3,Features Of TPS74701QDRCRQ1
AEC-Q100 qualified for automotive applications:
Temperature grade 1: –40°C to +125°C, T A
V OUT range: 0.8 V to 3.6 V
V IN range: 0.8 V to 5.5 V
V BIAS range: 2.7 V to 5.5 V
Low dropout: 20 mV typical at 500 mA, V BIAS = 5 V
Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
0.95% accuracy over line, load, and temperature
Programmable soft start provides linear voltage start-up
V BIAS permits low V IN operation with good transient response
Stable with any output capacitor ≥ 2.2 µF
TPS74701QDRCRQ1 available in a small 3-mm × 3-mm 10-pin VSON package

4,TPS74701QDRCRQ1 is widely used in the following areas:

Automotive electronics: such as in-vehicle infotainment systems, front and rear camera modules and telematics control units.

Industrial control: TPS74701QDRCRQ1 Automotive 500mA Adjustable Ultra-Low-Dropout Voltage Regulator for motor control, sensor power supply and automation equipment.

Communication equipment: TPS74701QDRCRQ1 provide stable power support for base stations, RF modules and optical modules

5,Typical Application Circuit Of TPS74701QDRCRQ1

6,Turn-On Response Of TPS74701QDRCRQ1

7,Functional Block Diagram Of TPS74701QDRCRQ1