Dual 600 mA buck regulator

3 February 2010 Power Electronics / Power Management

Analog Devices has introduced a miniature dual buck regulator for space-constrained portable electronic systems. At just 2 × 2 × 0,6 mm, the dual 600 mA ADP5022 includes an additional 150 mA on-chip LDO (low dropout regulator), a convenient feature for powering auxiliary rails.

In addition to being well suited for compact portable instruments and smart energy meters, the IC’s low-noise architecture and high switching frequency make it suitable for powering sensitive analog circuits like high-resolution ADCs (analog-to-digital converters).

The 3 MHz regulators included in the ADP5022 provide fixed-voltage outputs and internal compensation, delivering high efficiency and performance while minimising the external filter size and eliminating as many as 12 discrete components from system board design. To maintain high efficiency at both light and heavy loads, the device automatically shifts between PWM (pulse-width modulation) mode and PSM (power-save mode). The MODE pin can be used to force the device into PWM mode across all loads.

The ADP5022 provides important features that help enable the design of noise sensitive analog and RF systems. A key to designing sensitive analog circuits is getting the regulator physically close to the load. The compact size of the ADP5022 allows the system designer to place the power regulation right alongside the point of load, minimising PCB parasitics. The buck regulators employ a low-noise driver technique, high switching speed and out of phase clocking to further reduce noise.

Further reading:

NVDC power-path control to 1– 6 cell battery systems
iCorp Technologies Power Electronics / Power Management
SG Micro’s SGM41581 is an I2C-controlled narrow voltage direct charging buck boost charge controller designed to simplify robust power delivery in systems that must seamlessly operate from an adapter input or a battery pack.

Read more...

---

Precise, adaptive battery health-monitoring
RS South Africa Power Electronics / Power Management
New fuel gauge solution from Nordic delivers State-of-Health reporting, adaptive battery modelling, and seamless fleet observability via nRF Cloud.

Read more...

---

Compact 6 A automotive buck converter
Altron Arrow Power Electronics / Power Management
Delivering up to 6 A of continuous output current, the DCP0606Y from STMicroelectronics enables efficient regulation of low-voltage rails commonly used in modern vehicle electronics and industrial systems.

Read more...

---

The new role of UPS technology in high-precision automation
Omron Electronics Power Electronics / Power Management
OMRON’s BU_2SW and BU_2RWL series UPS systems are engineered to offer a robust, online type power architecture designed to safeguard sensitive AC powered systems across a wide range of industries.

Read more...

---

Rugged railway-grade DC-DC power modules
iCorp Technologies Power Electronics / Power Management
iCorp Technologies has introduced the AIPUPOWER ZCD100 and ZCD150 Series, a family of rugged DC-DC converters designed to meet the demanding electrical and environmental requirements of railway and transportation systems.

Read more...

---

Four-quadrant regenerative grid simulator
Conical Technologies Power Electronics / Power Management
The IT7900EP series high-performance regenerative grid simulator from ITECH is a full four-quadrant AC grid simulator capable of both sourcing and sinking power.

Read more...

---

90 W PSU with 150% boost capability
Brabek Power Electronics / Power Management
RECOM’s cost effective REFIN2U-S90/CL DIN rail AC/DC boasts a 90 W rating with a boost capability of 150% for 4,5 seconds to allow for surge loads.

Read more...

---

Standalone USB PD controller
Future Electronics Power Electronics / Power Management
The STUSB4531 from STMicroelectronics is a standalone USB Power Delivery sink controller designed to streamline the implementation of USB-C power negotiation in sink devices without requiring a full software stack on a host microcontroller.

Read more...

---

Power module enhances AI data centre power density
Altron Arrow Power Electronics / Power Management
Microchip’s MCPF1525 power module with PMBus delivers 25 A DC-DC power and is stackable up to 200 A.

Read more...

---

MIL-Spec DC-DC power converters
Vepac Electronics Power Electronics / Power Management
PowerGood has introduced a range of 15 W to 600 W military DC-DC power converters engineered for mission critical defence applications.

Read more...

---