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TPS7A25 ACTIVE 300-mA, 18-V, ultra-low-IQ, high-accuracy, adjustable low-dropout voltage regulator with power good Alternative product with higher accuracy, ultra-low-IQ and better dropout voltage in a 2x2 WSON package

Product details


Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.25 Vin (Max) (V) 10 Vin (Min) (V) 3 Vout (Max) (V) 9.75 Vout (Min) (V) 1.2 Fixed output options (V) 2.5, 3, 3.3, 4.8, 5 Noise (uVrms) 190 Iq (Typ) (mA) 0.18 Thermal resistance θJA (°C/W) 114 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 2 PSRR @ 100 KHz (dB) 8 Dropout voltage (Vdo) (Typ) (mV) 560 Operating temperature range (C) -40 to 125, -55 to 150 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 3.91 x 4.9 TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Linear regulators (LDO)


  • Available in 5-V, 4.85-V, 3.3-V, 3.0-V, and 2.5-V Fixed-Output and Adjustable Versions
  • Dropout Voltage <85 mV Max at
    IO = 100 mA (TPS7250)
  • Low Quiescent Current, Independent of Load, 180 uA Typ
  • 8-Pin SOIC and 8-Pin TSSOP Package
  • Output Regulated to ±2% Over Full Operating Range for Fixed-Output Versions
  • Extremely Low Sleep-State Current,
    0.5 uA Max
  • Power-Good (PG) Status Output
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The TPS72xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, micropower operation, and miniaturized packaging. These regulators feature extremely low dropout voltages and quiescent currents compared to conventional LDO regulators. Offered in small-outline integrated-circuit (SOIC) packages and 8-terminal thin shrink small-outline (TSSOP), the TPS72xx series devices are ideal for cost-sensitive designs and for designs where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS device. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low - maximum of 85 mV at 100 mA of load current (TPS7250) - and is directly proportional to the load current (see Figure 1). Since the PMOS pass element is a voltage-driven device, the quiescent current is very low (300 uA maximum) and is stable over the entire range of output load current (0 mA to 250 mA). Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage and micropower operation result in a significant increase in system battery operating life.

The TPS72xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 0.5 uA maximum at TJ = 25°C. Other features include a power-good function that reports low output voltage and may be used to implement a power-on reset or a low-battery indicator.

The TPS72xx is offered in 2.5-V, 3-V, 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).

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Technical documentation

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Type Title Date
* Data sheet MicroPower Low-Dropout (LDO) Voltage Regulators datasheet (Rev. G) Jun. 05, 2000
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 article LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical article LDO Basics: Preventing reverse current Jul. 25, 2018
Technical article LDO basics: introduction to quiescent current Jun. 20, 2018
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical article LDO basics: noise – part 1 Jun. 14, 2017
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance Aug. 30, 1999

Design & development

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

Hardware development

MikroElektronika ASLKPRO University Kit
Provided by MikroElektronika
ASLK PRO comes with three general-purpose operational amplifiers (TL082) and three wide-bandwidth precision analog multipliers (MPY634) from Texas Instruments. We have also included two 12-bit parallel-input multiplying digital-to-analog converters DAC7821, a wide-input non-synchronous buck-type (...)

ASLK PRO Kit comes in/with:

    • Damage resistant protective box
    • ASLK PRO board in antistatic bag
    • Manual, Schematic and Graph paper book
    • Wire jumpers, transistors and diodes
    • 14 Lab experiments* catered towards Analog Circuits

* Lab experiments may be supplemented with SPICE simulation software (not included in (...)

Design tools & simulation

SLVM793.ZIP (24 KB) - PSpice Model
SLVM794.ZIP (24 KB) - PSpice Model
SLVMBZ5.ZIP (1 KB) - PSpice Model
SLVMBZ6.ZIP (1 KB) - PSpice Model
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 (...)

SLVC099.ZIP (36 KB)

CAD/CAE symbols

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PDIP (P) 8 View options
SOIC (D) 8 View options
TSSOP (PW) 8 View options

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