The ADP7142ARDZ-5.0-R7 from Analog Devices is a high-input-voltage, low-noise CMOS low-dropout linear regulator. This exact version provides a fixed 5.0V output, operates from 2.7V to 40V, and supplies up to 200mA output current.
The ADP7142 is optimized for noise-sensitive analog and mixed-signal applications. Fixed-output versions at 5V or below provide only 11µV rms typical output noise. With VIN=7V and VOUT≤5V, typical PSRR is 88dB at 10kHz, 68dB at 100kHz, and 50dB at 1MHz.
For the 5V version, typical dropout voltage is only 200mV at a 200mA load, helping reduce power loss when the input voltage is close to the regulated output.
Initial output accuracy is specified at ±0.8%. Including line, load, and temperature variation, accuracy is approximately -1.2% to +1.5% from -40°C to +85°C, and ±1.8% across -40°C to +125°C.
The regulator also offers low operating power consumption, with 50µA typical ground current at no load. Typical shutdown current is 1.8µA at VIN=6V and 3.0µA at VIN=40V.
The SOIC version provides user-programmable soft-start, allowing an external capacitor to control output ramp time. The regulator remains stable with a small 2.2µF ceramic output capacitor, helping minimize external component count.
Although this model has a nominal 5.0V fixed output, ADI allows fixed-output versions to be adjusted above their initial set point through an external feedback divider, providing additional design flexibility.
The exact ADP7142ARDZ-5.0-R7 uses an 8-lead SOIC package with exposed pad. Analog Devices currently lists this exact ordering code as PRODUCTION, while the ADP7142 family is marked Recommended for New Designs.
Key Specifications:
- Brand: Analog Devices / ADI
- Part Number: ADP7142ARDZ-5.0-R7
- Family: ADP7142
- Product Type: CMOS LDO Linear Regulator
- Output Type: Fixed Positive
- Fixed Output Voltage: 5.0V
- Input Voltage Range: 2.7V to 40V
- Maximum Output Current: 200mA
- Dropout Voltage: 200mV Typ at 200mA
- Output Noise: 11µV rms Typ
- PSRR at 10kHz: 88dB
- PSRR at 100kHz: 68dB
- PSRR at 1MHz: 50dB
- Initial Accuracy: ±0.8%
- Full-Temperature Accuracy: ±1.8%
- No-Load Ground Current: 50µA Typ
- Shutdown Current: 1.8µA Typ at VIN=6V
- Shutdown Current: 3.0µA Typ at VIN=40V
- Precision Enable: Yes
- Programmable Soft Start: Yes
- Recommended Output Capacitor: 2.2µF Ceramic
- Adjustable Above Fixed Set Point: Yes
- Junction Temperature Range: -40°C to +125°C
- Package: 8-Lead SOIC with Exposed Pad
- Mounting Type: SMD / SMT
R7: Tape-and-Reel Ordering Option- Product Lifecycle: PRODUCTION
- Family Status: Recommended for New Designs.
Reviews
There are no reviews yet.