LP2985

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Regulador de voltaje de baja caída de 150 mA, 16 V, con habilitación

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Hoja de datos

document-pdfAcrobat LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. R) (Inglés) PDF | HTML

LP2985

ACTIVO

Hoja de datos

Haga su pedido ahora

Detalles del producto

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Rating

Catalog

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

205.4, 206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

5

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Rating

Catalog

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

205.4, 206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

5

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-40 to 125

SOT-23 (DBV)

5

8.12 mm² 2.9 x 2.8

V IN range (new chip): 2.5 V to 16 V
V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
±1% output accuracy over load, and temperature for new chip
Output current: Up to 150 mA
Low I Q (new chip): 71 µA at I LOAD = 0 mA
Low I Q (new chip): 750 µA at I LOAD = 150 mA
Shutdown current:
- 0.01 µA (typ) for legacy chip
- 1.12 µA (typ) for new chip
Low noise: 30 µV RMS with 10-nF bypass capacitor
Output current limiting and thermal protection
Stable with 2.2-µF ceramic capacitors
High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
Operating junction temperature: –40°C to +125°C
Package: 5-pin SOT-23 (DBV)

V IN range (new chip): 2.5 V to 16 V
V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
±1% output accuracy over load, and temperature for new chip
Output current: Up to 150 mA
Low I Q (new chip): 71 µA at I LOAD = 0 mA
Low I Q (new chip): 750 µA at I LOAD = 150 mA
Shutdown current:
- 0.01 µA (typ) for legacy chip
- 1.12 µA (typ) for new chip
Low noise: 30 µV RMS with 10-nF bypass capacitor
Output current limiting and thermal protection
Stable with 2.2-µF ceramic capacitors
High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
Operating junction temperature: –40°C to +125°C
Package: 5-pin SOT-23 (DBV)

The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (for new chip).

Additionally, the LP2985 (new chip) has a 1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package.

The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (for new chip).

Additionally, the LP2985 (new chip) has a 1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. R)	PDF \| HTML	10 jul 2023
	Application note	LDO Noise Demystified (Rev. B)	PDF \| HTML	18 ago 2020
	Application brief	16-Bit 8-Channel PLC Analog Input Module with High Voltage (±150 V) Common Mode		27 abr 2020
	Application note	ESR, Stability, and the LDO Regulator (Rev. A)		07 ene 2020
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		27 jun 2019
	Application note	Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A)		17 ago 2018
	Application note	LDO PSRR Measurement Simplified (Rev. A)	PDF \| HTML	09 ago 2017
	Application note	A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes		15 jun 2015
	Application note	Linear power for automated industrial systems		09 ene 2015
	Analog Design Journal	Techniques for accurate PSRR measurements		28 oct 2013
	Application note	AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B)		06 may 2013
	Application note	AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A)		25 abr 2013
	Application note	AN-1815 LDOs Ease the Stress of Start-Up (Rev. A)		24 abr 2013
	Application note	AN-1950 Silently Powering Low Noise Applications (Rev. A)		22 abr 2013
	Application note	LDO Performance Near Dropout		08 oct 2010
	Application note	3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A)		14 jun 2010
	Application note	3.6V – 5.5V Input, LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)		14 jun 2010
	Application note	Packaging Limits Range of Linear Regulators		08 may 2010
	Application note	Simple Power Solution Using LDOs for the DM365 (Rev. A)		11 sep 2009
	Application note	Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)		04 jun 2008
	Application note	Linear and Switching Voltage Regulator Fundamental Part 1		21 mar 2007
	Application note	Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A)		13 oct 2006
	Application note	Understanding LDO Dropout		09 may 2005
	More literature	LP2981/85 Product Clip		09 sep 2004
	Application note	Extending the Input Voltage Range of an LDO Regulator		16 ago 2002
	Application note	Understanding the Terms and Definitions of LDO Voltage Regulators		21 oct 1999
	Application note	Technical Review of Low Dropout Voltage Regulator Operation And Performance		30 ago 1999
	Application brief	Low Power 150-mA LDO Linear Regulators. Extended Output Voltage Adjustment Range		11 jun 1999

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.

Placa de evaluación

DRV8835EVM — Módulo de evaluación DRV8835

The DRV8835 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8835 motor driver from Texas Instruments. User can control the DRV8835 with an external microcontroller via signal header connectors or use on-board switches for stand-alone operation.

Guía del usuario: PDF

No disponible en TI.com

Placa de evaluación

DRV8837CEVM — Módulo de evaluación de puente H de baja tensión de 1 A

The DRV8837CEVM evaluation module (EVM) is a 3.3 V to 11 V, 1 A, brushed DC motor drive and control system based on the DRV8837C integrated brushed motor driver, compact MSP430G2131 microcontroller, and LP2985 Low-Dropout Regulator. The EVM allows for simple evaluation of the DRV8837C with a wide (...)

Guía del usuario: PDF

No disponible en TI.com

Placa de evaluación

LDC1314KEYPAD-EVM — Módulo de evaluación de convertidor inductivo a digital LDC1314: teclado de 16 botones

The LDC1314KEYPAD evaluation module implements a 16 snap dome button keypad using only one LDC1314 to multiplex all 16 buttons.

This design uses the LDC1314 but can also be replicated with the LDC1312, LDC1612 and LDC1614.

No disponible en TI.com

Placa de evaluación

LMG1025-Q1EVM — Módulo de evaluación LMG1025-Q1 de controlador de lado bajo GaN y GaN FET LiDAR

The LMG1025-Q1EVM is a small, easy-to-use power stage with integrated resistive load (laser not included). It takes a short-pulse input that can either be buffered (and shortened further), or passed directly to the power stage.

Guía del usuario: PDF

No disponible en TI.com

Modelo de simulación

LP2985-10 PSpice Transient Model

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LP2985

Regulador de voltaje de baja caída de 150 mA, 16 V, con habilitación

LP2985

Detalles del producto

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Documentación técnica

Diseño y desarrollo

DRV8835EVM — Módulo de evaluación DRV8835

DRV8837CEVM — Módulo de evaluación de puente H de baja tensión de 1 A

LDC1314KEYPAD-EVM — Módulo de evaluación de convertidor inductivo a digital LDC1314: teclado de 16 botones

LMG1025-Q1EVM — Módulo de evaluación LMG1025-Q1 de controlador de lado bajo GaN y GaN FET LiDAR

TIDA-01598 — Diseño de referencia de amplificador de corriente de ancho de banda alto y lado bajo y detección de

Pedidos y calidad

Soporte y capacitación

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

Serie de videos

Videos