Low-current LDOs

3 August 2011 Power Electronics / Power Management

New from ON Semiconductor are five low dropout (LDO) linear voltage regulators capable of delivering output current of 150 mA.

With an output voltage range of 1,2 V to 3,3 V, the NCP4682 and NCP4685 have a supply current of just 1 μA typical. They incorporate output current protection and a fully integrated soft-start circuit to minimise inrush current and ensure there is no output voltage overshoot. Output voltage accuracy is ±0,8%. Available packages include a UDFN-4 package measuring 1 x 1 x 0,6 mm.

With ±1,0% output voltage accuracy, the NCP4681 and NCP4684 also have a 1 μA typical supply current and are specified over a wider output voltage range of 0,8 V to 3,6 V. They benefit from the same soft-start and output current protection features as the NCP4682 and NCP4685. Available packages include an XDFN-4 measuring just 0,8 x 0,8 x 0,4 mm.

The NCP4682 and NCP4681 both include an enable function to reduce supply current by employing a standby mode. In contrast, the NCP4684 and NCP4685 eliminate this function in order to avoid any associated pull-down current, thereby lowering the quiescent current for battery-powered portable applications which are required to spend most of their time in an active mode.

The NCP4680, which completes the new lineup, can operate with an input voltage of 1,4 V minimum. The device delivers strong transient response with ripple rejection of 75 dB and output voltage accuracy of ±1%. Its output voltage range covers 0,8 V to 3,5 V and the available packages include the XDFN-4.

Further reading:

Finding value for money with your IoT battery
Uniross Batteries Power Electronics / Power Management
Designing an IoT application involves a lot of choices. Designers are looking for performance and quality, but need to balance those alongside a low Total Cost of Ownership.

Read more...

---

Powering the IoT
Uniross Batteries Power Electronics / Power Management
Choosing the right battery is not simply a technical detail, but a defining factor in the longevity and cost-effectiveness of any IoT deployment.

Read more...

---

The move to DC infrastructure
IOT Electronics Power Electronics / Power Management
The shift toward direct current infrastructure in data centres is accelerating as operators pursue higher efficiency, improved reliability, and stronger alignment with renewable energy goals.

Read more...

---

Power inductor for automotive applications
Würth Elektronik eiSos Power Electronics / Power Management
The WE-MXGA inductor features RDC values up to 25% lower and a saturation current up to 47% higher compared to other components currently available on the market.

Read more...

---

High-performance DC-DC converter
Conical Technologies Power Electronics / Power Management
With a wide 9 - 40 V DC input range, the Claf Power DWHB400-F24xxN series is a high-performance DC-DC converter family ideally suited for 12 V and 24 V battery-based systems including vehicles, off-grid installations, and distributed power architectures.

Read more...

---

DC-DC converters for next-generation IoT
iCorp Technologies Power Electronics / Power Management
AIPUPOWER’s K78XXJT-500R3 and K78XXJT-500R3-LB give designers a compact, high-efficiency power option for battery-powered and space-constrained systems, combining up to 96% efficiency with no-load input current as low as 0,2 mA.

Read more...

---

240 W in compact form factor
Brabek Power Electronics / Power Management
The cost-effective and reliable RECOM RACPRO1-S240E DIN-rail mount AC-DC series is only 125 x 139 mm and 39 mm wide, yet provides 240 W output.

Read more...

---

You cannot manage what you cannot measure
Power Electronics / Power Management
South African sites are generating solar energy. Most still have no idea what is consuming it… or when, or why. Intelligent load management hardware is changing that.

Read more...

---

Scalable and intelligent power solution
Power Electronics / Power Management
Designed for Africa’s rapidly evolving energy landscape, Bluetti’s ES125 offers a scalable, intelligent power solution that delivers reliable and cost-efficient electricity for uninterrupted operations.

Read more...

---

Simulating grid abnormalities
Conical Technologies Power Electronics / Power Management
Simulating grid abnormalities has become an essential part of validating systems such as inverters, UPS units, photovoltaic inverters, and EV charging infrastructure.

Read more...

---