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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.5 Vin (Max) (V) 10 Vin (Min) (V) 2.5 Vout (Max) (V) 9.75 Vout (Min) (V) 1.2 Fixed output options (V) 3.3, 4.8, 5 Noise (uVrms) 89 Iq (Typ) (mA) 0.28 Thermal resistance θJA (°C/W) 106 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 3 PSRR @ 100 KHz (dB) 3 Dropout voltage (Vdo) (Typ) (mV) 235 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 3.91 x 4.9 TSSOP (PW) 20 42 mm² 6.5 x 6.4 open-in-new Find other Linear regulators (LDO)

Features

  • Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS7150)
  • Very Low Quiescent Current – Independent of Load . . . 285 µA Typ
  • Extremely Low Sleep-State Current
       0.5 µA Max
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Output Current Range of 0 mA to 500 mA
  • TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
  • Power-Good (PG) Status Output

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Description

The TPS71xx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS7150) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 µA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to 0.5 µA maximum at TJ = 25°C.

Voltage – Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery indicator.

The TPS71xx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). The TPS71xx family is available in PDIP (8 pin), SO (8 pin), and TSSOP (20-pin) packages. The TSSOP has a maximum height of 1,2 mm.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet Low-Dropout Voltage Regulators datasheet (Rev. G) Jan. 22, 2003
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) Aug. 17, 2018
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application note Power Supply Sequencing Solutions for Dual Supply Voltage DSPs (Rev. A) Jul. 05, 2000
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance Aug. 30, 1999
Application note TMS320C62x/67x Power Supply Solutions for 1-2 DSPs Using the TL5001A and TPS7133 (Rev. A) Jun. 01, 1999

Design & development

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

Design tools & simulation

CALCULATION TOOL Download
Free Tool: Calculates Parameters for TPS7x01
TPS7X01CALC This spreadsheet calculates the operating parameters for the Texas Instruments TPS7x01 family of adjustable low dropout regulators.

The closest 1% resistor values are calculated, as well as, the maximum power dissipation, worst-case output voltages, Power-Good trip voltages, and maximum operating (...)

CALCULATION TOOL Download
SLVC099.ZIP (36 KB)

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options
TSSOP (PW) 20 View options

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