TPS79501-Q1

ACTIVE

Automotive 500-mA, adjustable low-dropout voltage regulator with enable

Product details

Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.4 Vout (min) (V) 1.2 Noise (µVrms) 33 Iq (typ) (mA) 0.26 Thermal resistance θJA (°C/W) 48 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.4 Vout (min) (V) 1.2 Noise (µVrms) 33 Iq (typ) (mA) 0.26 Thermal resistance θJA (°C/W) 48 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • 500-mA Low-Dropout Regulator With Enable
  • High PSRR (50 dB at 10 kHz)
  • Ultralow Noise (33 µVRMS, TPS79501-Q1)
  • Fast Start-Up Time (50 µs)
  • Stable With a 1-µF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Low Dropout Voltage (110 mV at Full Load, TPS79501-Q1)
  • APPLICATIONS
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth®, Wireless LAN

Bluetooth Is a trademark of Texas Instruments

  • Qualified for Automotive Applications
  • 500-mA Low-Dropout Regulator With Enable
  • High PSRR (50 dB at 10 kHz)
  • Ultralow Noise (33 µVRMS, TPS79501-Q1)
  • Fast Start-Up Time (50 µs)
  • Stable With a 1-µF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Low Dropout Voltage (110 mV at Full Load, TPS79501-Q1)
  • APPLICATIONS
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth®, Wireless LAN

Bluetooth Is a trademark of Texas Instruments

The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMS of output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time.

The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMS of output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time.

Download View video with transcript Video
Information

Check TI.com inventory for similar products

Products with similar specifications, sorted by available TI.com inventory.

View now

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS745-Q1 ACTIVE Automotive 500-mA, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good Higher PSRR, lower IQ, and power-good

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 Automotive Catalog Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High datasheet 09 Sep 2010
Circuit design Power-supply margining circuit for LDOs using a precision DAC (Rev. A) 03 Sep 2019

Design & development

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

Simulation model

Source files for SBAA341

SBAM415.ZIP (16 KB) - TINA-TI Reference Design
Reference designs

TIDA-00322 — Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design

TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. (...)
Test report: PDF
Schematic: PDF
Package Pins Download
VSON (DRB) 8 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