Low dropout regulators

8 February 2012 Power Electronics / Power Management

Recently introduced by Analog Devices is a pair of LDOs (low dropout regulators) with low noise, high power supply rejection, and excellent line and load transient response. The ADP7102 and ADP7104 LDOs achieve a 15 μVrms fixed-voltage noise figure, power supply rejection ratio (PSRR) of 60 dB at 10 kHz in 3 V operation, and feature reverse current protection to guard against shorts and sudden load discharges. They are designed to maximise the load performance and yield higher data conversion accuracy and resolution in high-frequency communications infrastructure, medical imaging, and industrial and instrumentation applications.

The new LDOs operate from 3,3 V to 20 V and are designed to regulate high-performance analog and mixed-signal circuits operating from 19 V to 1,22 V rails while achieving excellent line and load transient response with just a small 1 μF ceramic output. The ADP7102 has a maximum output current of 500 mA, while the maximum output current of the ADP7104 is 300 mA. Both are available in an 8-lead SOIC-EP and a space saving 3 x 3 mm LFCSP package.

Further reading:

ABB’s Mission to Zero drives South Africa’s energy transition
ABB Electrification Products Power Electronics / Power Management
ABB Electrification is charting a bold path towards a net-zero future with its Mission to Zero programme, a blueprint that combines energy efficiency, electrification, and digital innovation to accelerate the transition to clean energy.

Read more...

---

Energy harvesting using a battery-less IoT system
NuVision Electronics Editor's Choice Power Electronics / Power Management
Energy Harvesting plays an essential role in the foundation of ambient IoT, a new generation of ultra-low power connected devices that operate by drawing energy from their environment instead of relying on traditional batteries.

Read more...

---

Driving power, defining performance
Future Electronics Power Electronics / Power Management
Vishay’s portfolio of inductors, current sense resistors, and MOSFETs provides a comprehensive solution for intelligent power management.

Read more...

---

Battery simulator module simplifies BMS testing
Test Dynamics Power Electronics / Power Management
The PXI/PXIe solution from Pickering Interfaces offers a scalable, modular design for faster development cycles, lower total cost of ownership, and improved safety.

Read more...

---

DC PSU: The cornerstone for efficient solar-storage systems
Vepac Electronics Power Electronics / Power Management
PV energy storage systems are evolving and DC power supplies, with their technical characteristics that are naturally compatible with new energy, have become a key carrier for improving system energy efficiency.

Read more...

---

Why local manufacturing, maintenance and support are key to the success of South Africa’s energy future
Power Electronics / Power Management
Although new renewable generation capacity is being developed, the current transmission infrastructure may not fully support the connection of these sources to the national grid or adequately deliver power to areas of high demand.

Read more...

---

Converter power modules for 48 V networks
Altron Arrow Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.

Read more...

---

The importance of power integrity
Spectrum Concepts Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.

Read more...

---

Precise multi-vital sign monitoring
Future Electronics Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.

Read more...

---

Automotive battery diagnostics tester
Comtest Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.

Read more...

---