TPS7A25

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Hochpräziser, einstellbarer Low-Dropout-Spannungsregler mit 300 mA, 18 V, extrem niedrigem IQ, Power

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Datenblatt

document-pdfAcrobat TPS7A25 300-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. C) (Englisch) PDF | HTML

TPS7A25

AKTIV

Datenblatt

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Produktdetails

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

0.3

Vin (max) (V)

18

Vin (min) (V)

2.4

Vout (max) (V)

17.64

Vout (min) (V)

1.24

Fixed output options (V)

1.25, 1.8, 2.5, 3.3, 5

Noise (µVrms)

300

Iq (typ) (mA)

0.002

Thermal resistance θJA (°C/W)

73.3

Rating

Catalog

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Power good, Soft start

Accuracy (%)

1

PSRR at 100 KHz (dB)

22

Dropout voltage (Vdo) (typ) (mV)

210

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

0.3

Vin (max) (V)

18

Vin (min) (V)

2.4

Vout (max) (V)

17.64

Vout (min) (V)

1.24

Fixed output options (V)

1.25, 1.8, 2.5, 3.3, 5

Noise (µVrms)

300

Iq (typ) (mA)

0.002

Thermal resistance θJA (°C/W)

73.3

Rating

Catalog

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Power good, Soft start

Accuracy (%)

1

PSRR at 100 KHz (dB)

22

Dropout voltage (Vdo) (typ) (mV)

210

Operating temperature range (°C)

-40 to 125

WSON (DRV)

6

4 mm² 2 x 2

Ultra-low I_Q: 2 µA
Input voltage: 2.4 V to 18 V
Output voltage options available:
- Fixed: 1.25 V to 5.0 V
- Adjustable: 1.24 V to 17.66 V
1% accuracy over temperature
Low dropout: 340 mV (max) at 300 mA
Open-drain, power-good output
Thermal shutdown and overcurrent protection
Active overshoot pulldown
Operating junction temperature: –40°C to +125°C
Stable with 1-µF output capacitors
Package: 6-pin WSON

Ultra-low I_Q: 2 µA
Input voltage: 2.4 V to 18 V
Output voltage options available:
- Fixed: 1.25 V to 5.0 V
- Adjustable: 1.24 V to 17.66 V
1% accuracy over temperature
Low dropout: 340 mV (max) at 300 mA
Open-drain, power-good output
Thermal shutdown and overcurrent protection
Active overshoot pulldown
Operating junction temperature: –40°C to +125°C
Stable with 1-µF output capacitors
Package: 6-pin WSON

The TPS7A25 low-dropout (LDO) linear voltage regulator introduces a combination of a 2.4-V to 18-V input voltage range with very-low quiescent current (I_Q). These features help modern appliances meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A25 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.64 V. Both versions have a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references.

The TPS7A25 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 340 mV at 300 mA of current. This maximum dropout voltage allows for 92.5% efficiency from a 5.4-V input voltage (V_IN) to a 5.0-V output voltage (V_OUT).

The power-good (PG) indicator can be used to either hold an MCU in reset until power is good, or for sequencing. The PG pin is an open-drain output; therefore, the pin is easily level-shifted for monitoring by a rail other than V_OUT. The built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.

For a higher output current alternative, consider the TPS7A26.

The TPS7A25 low-dropout (LDO) linear voltage regulator introduces a combination of a 2.4-V to 18-V input voltage range with very-low quiescent current (I_Q). These features help modern appliances meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A25 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.64 V. Both versions have a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references.

The TPS7A25 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 340 mV at 300 mA of current. This maximum dropout voltage allows for 92.5% efficiency from a 5.4-V input voltage (V_IN) to a 5.0-V output voltage (V_OUT).

The power-good (PG) indicator can be used to either hold an MCU in reset until power is good, or for sequencing. The PG pin is an open-drain output; therefore, the pin is easily level-shifted for monitoring by a rail other than V_OUT. The built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.

For a higher output current alternative, consider the TPS7A26.

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Alle anzeigen 3

	Typ	Titel		Datum
*	Data sheet	TPS7A25 300-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. C)	PDF \| HTML	02 Dez 2022
	White paper	Understanding the Foundations of Quiescent Current in Linear Power Systems		18 Feb 2021
	EVM User's guide	TPS7A26EVM-021 Evaluation Module User's Guide		07 Dez 2018

Design und Entwicklung

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Evaluierungsplatine

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The TPS7A26 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A26 device, which is a 500-mA low-dropout (LDO) linear regulator.

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Benutzerhandbuch: PDF

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Simulationsmodell

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SBVM941.ZIP (55 KB) - PSpice Model

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Design guide: PDF

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This back-up power reference design is for automotive E-Call application. It uses one cell LiFePO4 as the backup battery. The minimum backup battery voltage can be down to 2 V with boost converter TPS61088-Q1; the maximum output power can be 8 V/1.7A. This reference design is low-cost, high (...)

Design guide: PDF

Schaltplan: PDF

Gehäuse	Pins	Herunterladen
WSON (DRV)	6	Optionen anzeigen

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TPS7A25

Hochpräziser, einstellbarer Low-Dropout-Spannungsregler mit 300 mA, 18 V, extrem niedrigem IQ, Power

TPS7A25

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