Analog Devices Inc. Reguladores lineales LDO CMOS ADP7118 / ADP7142
El regulador lineal de baja desconexión (LDO) CMOS ADP7118 de Analog Devices funciona desde 2,7 V a 20 V y ofrece hasta 200 mA de corriente de salida. Este LDO de tensión de entrada alta es ideal para la regulación de circuitos de señales analógicas y mixtas de alto rendimiento que funcionan con carriles de entre 20 V y 1,2 V. El ADP7142 funciona desde 2,7 V hasta 40 V y proporciona hasta 200 mA de corriente de salida. Este LDO de tensión de entrada alta es ideal para la regulación de circuitos de señales analógicas y mixtas de alto rendimiento que funcionan con carriles de entre 40 V y 1,2 V. Mediante el uso de una arquitectura patentada avanzada, los dispositivos ADP7118 y ADP7142 de ADI ofrecen un nivel elevado de rechazo de la fuente de alimentación, un nivel de ruido bajo y una respuesta excelente para transitorios de línea y de carga con un condensador cerámico pequeño de salida de 2,2 μF. El ruido de salida del regulador es 11 μV rms, independientemente de la tensión de salida para las opciones fijas de 5 V o menos.
ADI ADP7118/ADP7142 evaluation boards are used to demonstrate the functionality of the ADP7118/ADP7142 series of linear regulators. Simple device measurements such as line and load regulation, dropout, and ground current can be demonstrated with just a single voltage source, a voltmeter, an ammeter, and load resistors.
Características
- ADP7142
- Low Noise: 11μVRMS independent of fixed output voltage
- PSRR of 88dB @ 10KHz, 68dB @ 100KHz, 50dB @ 1MHz, VOUT ≤5V, VIN = 7V
- Input voltage range: 2.7V to 40V input voltage range
- Maximum output current: 200mA
- Initial accuracy: ±0.8%
- Accuracy over line, load, and temperature
- ±1.1%, TJ = −40°C to +85°C
- ±1.8%, TJ = −40°C to +125°C
- Low dropout voltage: 200mV @ 200mA load, VOUT = 5V
- User programmable soft start (LFCSP and SOIC only)
- Low quiescent current, IGND = 50μA with no load
- Low shutdown current: 1.8μA @ VIN = 5V, 3.0μA @ VIN = 40V
- Stable with small 2.2μF ceramic output capacitor
- ADP7118
- Low Noise: 11μVRMS independent of fixed output voltage
- PSRR of 88dB @ 10KHz, 68dB @ 100KHz, 50dB @ 1MHz, VOUT ≤5V, VIN = 7V
- Input voltage range: 2.7V to 20V
- Maximum output current: 200mA
- Initial accuracy: ±0.8%
- Accuracy over line, load, and temperature
- ±1.1%, TJ = −40°C to +85°C
- ±1.8%, TJ = −40°C to +125°C
- Low dropout voltage: 200mV @ 200mA load, VOUT = 5V
- User programmable soft start (LFCSP and SOIC only)
- Low quiescent current, IGND = 50μA with no load
- Low shutdown current: 1.8μA @ VIN = 5 V, 3.0μA @ VIN = 20V
- Stable with small 2.2μF ceramic output capacitor
Aplicaciones
- ADP7142
- Regulation to noise-sensitive applications
- ADC, DAC circuits, precision amplifiers, power for VCO Vtune control
- Communications and infrastructure
- Medical and healthcare
- Industrial and instrumentation
- ADP7118
- Regulation to noise-sensitive applications
- ADC, DAC circuits, precision amplifiers, power for VCO Vtune control
- Communications and infrastructure
- Medical and healthcare
- Industrial and instrumentation
Block Diagram
Additional Resource
Associated Boards
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Allows users to evaluate the features of the AD7606C-18 & AD7606C-16 analog-to-digital converters.
Analog Devices Inc. EVAL-AD7091R-8ARDZ Evaluation Board
Allows easy evaluation of all of the features of the AD7091R-8 family of ADCs.
Related Products
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Publicado: 2015-01-20
| Actualizado: 2025-09-30