TPS757

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Regulador de tensión de caída ultrabaja de 3 A con buena potencia y activación

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document-pdfAcrobat Fast-Transient Response 3-A Low Dropout Voltage Regulators datasheet (Rev. E) (Inglés)

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TPS757

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Detalles del producto

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

3

Vin (max) (V)

5.5

Vin (min) (V)

2.8

Vout (max) (V)

5

Vout (min) (V)

1.22

Fixed output options (V)

1.5, 1.8, 2.5, 3.3

Rating

Catalog

Noise (µVrms)

35

PSRR at 100 KHz (dB)

12

Iq (typ) (mA)

0.12

Thermal resistance θJA (°C/W)

39

Load capacitance (min) (µF)

47

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

150

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

3

Vin (max) (V)

5.5

Vin (min) (V)

2.8

Vout (max) (V)

5

Vout (min) (V)

1.22

Fixed output options (V)

1.5, 1.8, 2.5, 3.3

Rating

Catalog

Noise (µVrms)

35

PSRR at 100 KHz (dB)

12

Iq (typ) (mA)

0.12

Thermal resistance θJA (°C/W)

39

Load capacitance (min) (µF)

47

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

150

Operating temperature range (°C)

-40 to 125

TO-220 (KC)

5

45.212 mm² 10.16 x 4.45

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

3-A Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed-Output and Adjustable Versions
Open Drain Power-Good (PG) Status Output (Fixed Options Only)
Dropout Voltage Typically 150 mV at 3 A (TPS75733)
Low 125 µA Typical Quiescent Current
Fast Transient Response
3% Tolerance Over Specified Conditions for Fixed-Output Versions
Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages
Thermal Shutdown Protection

3-A Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed-Output and Adjustable Versions
Open Drain Power-Good (PG) Status Output (Fixed Options Only)
Dropout Voltage Typically 150 mV at 3 A (TPS75733)
Low 125 µA Typical Quiescent Current
Fast Transient Response
3% Tolerance Over Specified Conditions for Fixed-Output Versions
Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages
Thermal Shutdown Protection

The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG) and an adjustable voltage option regulator. These devices are capable of supplying 3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is low (typically 150 mV at an output current of 3 A for the TPS75733) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is low and independent of output loading (typically 125 &miccro;A over the full range of output current). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at T_J = 25°C. The power-good terminal (PG) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS757xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS757xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT) packages.

The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG) and an adjustable voltage option regulator. These devices are capable of supplying 3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is low (typically 150 mV at an output current of 3 A for the TPS75733) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is low and independent of output loading (typically 125 &miccro;A over the full range of output current). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at T_J = 25°C. The power-good terminal (PG) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS757xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS757xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT) packages.

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Documentación técnica

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=Principal documentación para este producto seleccionada por TI

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	Tipo	Título		Fecha
*	Data sheet	Fast-Transient Response 3-A Low Dropout Voltage Regulators datasheet (Rev. E)		05 feb 2009
	Application note	LDO Noise Demystified (Rev. B)	PDF \| HTML	18 ago 2020
	Application note	LDO PSRR Measurement Simplified (Rev. A)	PDF \| HTML	09 ago 2017
	EVM User's guide	TPS75525EVM Voltage Regulator Evaluation Module		28 nov 2001

Diseño y desarrollo

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