LP5952

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Regulador de voltaje lineal de 350 mA, de bajo VIN (0,9 V), con habilitación

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document-pdfAcrobat LP5952 350-mA Dual-Rail Linear Regulator datasheet (Rev. F) (Inglés) PDF | HTML

LP5952

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Catalog

Vin (max) (V)

4.5

Vin (min) (V)

0.9

Iout (max) (A)

0.35

Output options

Fixed Output

Vout (max) (V)

2

Vout (min) (V)

0.7

Fixed output options (V)

1, 1.2, 1.3, 1.5, 1.6, 1.8

Noise (µVrms)

100

PSRR at 100 KHz (dB)

38

Iq (typ) (mA)

0.061

Features

Enable

Thermal resistance θJA (°C/W)

181

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

88, 128

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

4.5

Vin (min) (V)

0.9

Iout (max) (A)

0.35

Output options

Fixed Output

Vout (max) (V)

2

Vout (min) (V)

0.7

Fixed output options (V)

1, 1.2, 1.3, 1.5, 1.6, 1.8

Noise (µVrms)

100

PSRR at 100 KHz (dB)

38

Iq (typ) (mA)

0.061

Features

Enable

Thermal resistance θJA (°C/W)

181

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

88, 128

Operating temperature range (°C)

-40 to 125

DSBGA (YZR)

5

2.02 mm² 1.616 x 1.25

USON (NKH)

6

4 mm² 2 x 2

Input Voltage Range: 0.7 V to 4.5 V
2.5 V ≤ V_BATT ≤ 5.5 V
0.5V ≤ V_OUT ≤ 2 V
Ensured 350-mA Output Current
For I_LOAD = 350 mA:
- V_BATT ≥ V_OUT(NOM) + 1.5 V or 2.5 V
  (Whichever is Higher)
For I_LOAD = 150 mA:
- V_BATT ≥ V_OUT(NOM) + 1.3 V or 2.5 V
  (Whichever is Higher)
Excellent Load Transient Response: ±15 mV Typical
Excellent Line Transient Response: ±1 mV Typical
50-µA Typical Quiescent Current from V_BATT
10-µA Typical Quiescent Current from V_IN
0.1-µA Typical Quiescent Current in Shutdown
Noise voltage = 100 µV_RMS Typical
Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
Thermal-Overload and Short-Circuit Protection

Input Voltage Range: 0.7 V to 4.5 V
2.5 V ≤ V_BATT ≤ 5.5 V
0.5V ≤ V_OUT ≤ 2 V
Ensured 350-mA Output Current
For I_LOAD = 350 mA:
- V_BATT ≥ V_OUT(NOM) + 1.5 V or 2.5 V
  (Whichever is Higher)
For I_LOAD = 150 mA:
- V_BATT ≥ V_OUT(NOM) + 1.3 V or 2.5 V
  (Whichever is Higher)
Excellent Load Transient Response: ±15 mV Typical
Excellent Line Transient Response: ±1 mV Typical
50-µA Typical Quiescent Current from V_BATT
10-µA Typical Quiescent Current from V_IN
0.1-µA Typical Quiescent Current in Shutdown
Noise voltage = 100 µV_RMS Typical
Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
Thermal-Overload and Short-Circuit Protection

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application V_BATT is directly connected to the battery (range 2.5 V to
5.5 V), and V_IN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application V_BATT is directly connected to the battery (range 2.5 V to
5.5 V), and V_IN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Data sheet	LP5952 350-mA Dual-Rail Linear Regulator datasheet (Rev. F)	PDF \| HTML	17 dic 2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
DSBGA (YZR)	5	Ultra Librarian
USON (NKH)	6	Ultra Librarian

Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

LP5952

Regulador de voltaje lineal de 350 mA, de bajo VIN (0,9 V), con habilitación

LP5952

Detalles del producto

Documentación técnica

Diseño y desarrollo

Pedidos y calidad

Soporte y capacitación

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