TPS720-Q1

ACTIVE

Automotive 350-mA, low-VIN (1.1-V), high-PSRR, low-IQ, low-dropout voltage regulator with enable

Product details

Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 1.1 Vout (max) (V) 3 Vout (min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.05, 1.1, 1.15, 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 2.9, 3, 3.3 Noise (µVrms) 48 Iq (typ) (mA) 0.038 Thermal resistance θJA (°C/W) 67 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 55 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 1.1 Vout (max) (V) 3 Vout (min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.05, 1.1, 1.15, 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 2.9, 3, 3.3 Noise (µVrms) 48 Iq (typ) (mA) 0.038 Thermal resistance θJA (°C/W) 67 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 55 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • Input Voltage Range: 1.1 V to 4.5 V
  • Output Voltage Range: 0.9 V to 3.6 V
  • High-Performance LDO: 350 mA
  • Low Quiescent Current: 38 µA
  • Excellent Load Transient Response: ±15 mV for ILOAD = 0 mA to 350 mA in 1 µs
  • Low Noise: 48 µVRMS (10 Hz to 100 kHz)
  • 80-dB VIN PSRR (10 Hz to 10 kHz)
  • 70-dB VBIAS PSRR (10 Hz to 10 kHz)
  • Fast Start-Up Time: 140 µs
  • Built-In Soft-Start With Monotonic VOUT Rise and Start-Up Current Limited to 100 mA + ILOAD
  • Overcurrent and Thermal Protection
  • Low Dropout: 110 mV at ILOAD = 350 mA
  • Stable With a 2.2-µF Output Capacitor
  • Package: 2.00 mm × 2.00 mm, 6-Pin WSON
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • Input Voltage Range: 1.1 V to 4.5 V
  • Output Voltage Range: 0.9 V to 3.6 V
  • High-Performance LDO: 350 mA
  • Low Quiescent Current: 38 µA
  • Excellent Load Transient Response: ±15 mV for ILOAD = 0 mA to 350 mA in 1 µs
  • Low Noise: 48 µVRMS (10 Hz to 100 kHz)
  • 80-dB VIN PSRR (10 Hz to 10 kHz)
  • 70-dB VBIAS PSRR (10 Hz to 10 kHz)
  • Fast Start-Up Time: 140 µs
  • Built-In Soft-Start With Monotonic VOUT Rise and Start-Up Current Limited to 100 mA + ILOAD
  • Overcurrent and Thermal Protection
  • Low Dropout: 110 mV at ILOAD = 350 mA
  • Stable With a 2.2-µF Output Capacitor
  • Package: 2.00 mm × 2.00 mm, 6-Pin WSON

The TPS720-Q1 family of dual-rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response) and consume a very low quiescent current of 38 µA.

The VBIAS rail that powers the control circuit of the LDO draws very low current (on the order of the LDO quiescent current) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN and can be a lower voltage than VBIAS; this path can be as low as VOUT + VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VIN can be an output of a high-efficiency, dc-dc, step-down regulator.

The TPS720-Q1 supports a novel feature where the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from VBIAS under this condition. This feature is particularly useful in power-saving applications where the dc-dc converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.

The TPS720-Q1 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720-Q1 provides a monotonic VOUT rise (overshoot limited to 3%) with VIN inrush current limited to 100 mA + ILOAD with an output capacitor of 2.2 µF.

The TPS720-Q1 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. The TPS720-Q1 is available in a 6-pin WSON package. This family of devices is fully specified over the temperature range of TJ = –40°C to +125°C.

The TPS720-Q1 family of dual-rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response) and consume a very low quiescent current of 38 µA.

The VBIAS rail that powers the control circuit of the LDO draws very low current (on the order of the LDO quiescent current) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN and can be a lower voltage than VBIAS; this path can be as low as VOUT + VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VIN can be an output of a high-efficiency, dc-dc, step-down regulator.

The TPS720-Q1 supports a novel feature where the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from VBIAS under this condition. This feature is particularly useful in power-saving applications where the dc-dc converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.

The TPS720-Q1 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720-Q1 provides a monotonic VOUT rise (overshoot limited to 3%) with VIN inrush current limited to 100 mA + ILOAD with an output capacitor of 2.2 µF.

The TPS720-Q1 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. The TPS720-Q1 is available in a 6-pin WSON package. This family of devices is fully specified over the temperature range of TJ = –40°C to +125°C.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet TPS720-Q1 350-mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With BIAS Pin datasheet (Rev. A) PDF | HTML 25 Oct 2016
Functional safety information TPS720-Q1 Functional Safety FIT Rate and FMD 07 Apr 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS720105DRVEVM — TPS720105 LDO Linear Regulator in DRV Package Evaluation Module

The TPS720105DRVEVM is a fully assembled and tested circuit for evaluating the TPS720105 low-dropout linear regulator in the DRV (2mm x 2mm SON-6) package.
User guide: PDF
Not available on TI.com
Simulation model

TPS72010 PSpice Transient Model

SBVM557.ZIP (102 KB) - PSpice Model
Simulation model

TPS72010 Unencrypted PSpice Transient Model

SBVM558.ZIP (2 KB) - PSpice Model
Simulation model

TPS72018 PSpice Transient Model

SBVM567.ZIP (105 KB) - PSpice Model
Simulation model

TPS72018 Unencrypted PSpice Transient Model

SBVM568.ZIP (2 KB) - PSpice Model
Simulation model

TPS72025 PSpice Transient Model

SBVM562.ZIP (110 KB) - PSpice Model
Simulation model

TPS72025 Unencrypted PSpice Transient Model

SBVM561.ZIP (2 KB) - PSpice Model
Simulation model

TPS72028 PSpice Transient Model

SBVM564.ZIP (106 KB) - PSpice Model
Simulation model

TPS72028 Unencrypted PSpice Transient Model

SBVM563.ZIP (2 KB) - PSpice Model
Simulation model

TPS720285 PSpice Transient Model

SBVM566.ZIP (106 KB) - PSpice Model
Simulation model

TPS720285 Unencrypted PSpice Transient Model

SBVM565.ZIP (2 KB) - PSpice Model
Simulation model

TPS72029 PSpice Transient Model

SBVM560.ZIP (106 KB) - PSpice Model
Simulation model

TPS72029 Unencrypted PSpice Transient Model

SBVM559.ZIP (2 KB) - PSpice Model
Simulation model

TPS72030 PSpice Transient Model

SBVM570.ZIP (106 KB) - PSpice Model
Simulation model

TPS72030 Unencrypted PSpice Transient Model

SBVM569.ZIP (2 KB) - PSpice Model
Package Pins Download
WSON (DRV) 6 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos