LM2940C

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Regulador de tensión de baja caída, alta PSRR de 1 A y 26 V

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document-pdfAcrobat LM2940x 1-A Low Dropout Regulator datasheet (Rev. J) (Inglés) PDF | HTML

LM2940C

ACTIVO

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Detalles del producto

Rating

Catalog

Vin (max) (V)

26

Vin (min) (V)

6

Iout (max) (A)

1

Output options

Fixed Output

Vout (max) (V)

15

Vout (min) (V)

5

Fixed output options (V)

5, 9, 12, 15

Noise (µVrms)

150

PSRR at 100 KHz (dB)

54

Iq (typ) (mA)

10

Thermal resistance θJA (°C/W)

23, 41

Load capacitance (min) (µF)

22

Regulated outputs (#)

1

Accuracy (%)

5

Dropout voltage (Vdo) (typ) (mV)

500

Operating temperature range (°C)

0 to 125

Rating

Catalog

Vin (max) (V)

26

Vin (min) (V)

6

Iout (max) (A)

1

Output options

Fixed Output

Vout (max) (V)

15

Vout (min) (V)

5

Fixed output options (V)

5, 9, 12, 15

Noise (µVrms)

150

PSRR at 100 KHz (dB)

54

Iq (typ) (mA)

10

Thermal resistance θJA (°C/W)

23, 41

Load capacitance (min) (µF)

22

Regulated outputs (#)

1

Accuracy (%)

5

Dropout voltage (Vdo) (typ) (mV)

500

Operating temperature range (°C)

0 to 125

TO-220 (NDE)

3

46.5328 mm² 10.16 x 4.58

TO-220 (NDG)

3

193.548 mm² 10.16 x 19.05

TO-263 (KTT)

3

154.8384 mm² 10.16 x 15.24

Input Voltage Range = 6 V to 26 V
Dropout Voltage Typically 0.5 V at I_OUT = 1 A
Output Current in Excess of 1 A
Output Voltage Trimmed Before Assembly
Reverse Battery Protection
Internal Short Circuit Current Limit
Mirror Image Insertion Protection
P⁺ Product Enhancement Tested

Input Voltage Range = 6 V to 26 V
Dropout Voltage Typically 0.5 V at I_OUT = 1 A
Output Current in Excess of 1 A
Output Voltage Trimmed Before Assembly
Reverse Battery Protection
Internal Short Circuit Current Limit
Mirror Image Insertion Protection
P⁺ Product Enhancement Tested

The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (V_IN − V_OUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940C and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940-N and LM2940C cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (V_IN − V_OUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940C and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940-N and LM2940C cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LM2940x 1-A Low Dropout Regulator datasheet (Rev. J)	PDF \| HTML	22 dic 2014

Diseño y desarrollo

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Design guide: PDF

Esquema: PDF

Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
TO-220 (NDE)	3	Ultra Librarian
TO-220 (NDG)	3	Ultra Librarian
TO-263 (KTT)	3	Ultra Librarian

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LM2940C

Regulador de tensión de baja caída, alta PSRR de 1 A y 26 V

LM2940C

Detalles del producto

Documentación técnica

Diseño y desarrollo

TIDA-01414 — Diseño de referencia de barra de sonido TPA3244 Dolby Atmos

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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