Low-current LDOs

Power Electronics / Power Management

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.

Share this article:

Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.

Read more...

Wide input voltage buck-boost converter
Altron Arrow Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.

Read more...

High-density power module for AI at the edge applications
Altron Arrow Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.

Read more...

Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.

Read more...

High-voltage IGBT
Hi-Q Electronics Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.

Read more...

DC converter for Hi-Rel applications
Vepac Electronics Power Electronics / Power Management
The MFK2812S from Crane Aerospace & Electronics is a DC-DC converter with an input voltage range of 16 to 50 V and an output of 12 V at up to 2,08 A.

Read more...

Distributed Energy Resource Management Systems
Schneider Electric South Africa Power Electronics / Power Management
In addition to grid stability, DERMS also play a role in energy trading with some countries leveraging DERMS for real-time energy trading.

Read more...

BYD introduces new energy storage solutions
Power Electronics / Power Management
BYD Energy Storage, a business division of BYD, has introduced the new BYD Battery-Box LV5.0+ at the recent Solar & Storage Live Africa in Johannesburg.

Read more...

Micro energy harvesting
Power Electronics / Power Management
Panasonic Industry and Miromico partner to show effective micro energy harvesting for industrial applications.

Read more...

Categories

Power Electronics / Power Management

Low-current LDOs

Further reading:

Publications by Technews