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Linear & low-dropout (LDO) regulators

TPS748A

ACTIVE

1.5-A 0.8-V adjustable low-dropout (LDO) voltage regulator with power good and enable

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Data sheet

TPS748A

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 6 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 7 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.55 Thermal resistance θJA (°C/W) 47.2 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good, Soft start, Wettable flanks package Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 6 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 7 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.55 Thermal resistance θJA (°C/W) 47.2 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good, Soft start, Wettable flanks package Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • VOUT range: 0.8 V to 3.6 V
  • Ultra-low VIN range: 0.8 V to 6.0 V
  • VBIAS range: 2.7 V to 6.0 V
  • Low dropout: 75 mV typical at 1.5 A, VBIAS = 5 V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 0.85% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 10 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 packages
  • VOUT range: 0.8 V to 3.6 V
  • Ultra-low VIN range: 0.8 V to 6.0 V
  • VBIAS range: 2.7 V to 6.0 V
  • Low dropout: 75 mV typical at 1.5 A, VBIAS = 5 V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 0.85% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 10 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 packages

The TPS748A low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility enables a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements.

A precision reference and error amplifier deliver 0.85% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 10 µF, and is fully specified for TJ = –40°C to +125°C. The TPS748A is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size.

The TPS748A low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility enables a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements.

A precision reference and error amplifier deliver 0.85% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 10 µF, and is fully specified for TJ = –40°C to +125°C. The TPS748A is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size.
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Technical documentation

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* Data sheet TPS748A 1.5-A, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet PDF | HTML 12 Dec 2022
Application note Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C) PDF | HTML 09 Oct 2024

Design & development

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Evaluation board

TPS74801EVM-177 — TPS74801 evaluation module for 1.5-A 0.8-V adjustable low-dropout (LDO) voltage regulator

The TPS74801EVM-177 evaluation module (EVM) is a platform for evaluating the TPS74801 low-dropout (LDO) linear regulator.

TPS74801 requires a low-power bias voltage (VBIAS) and a power input voltage (VIN). The regulator can provide output voltages down to 0.8 V and has an integrated supervisory (...)

User guide: PDF | HTML
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Simulation model

TPS748A and TPS748A-Q1 PSpice Transient Model (Rev. A)

SBVM992A.ZIP (80 KB) - PSpice Model
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VSON (DRC) 10 Ultra Librarian
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