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:

Surface mount power amplifier for high-power applications
RF Design Power Electronics / Power Management
The GNA-63-5W+, from Mini-Circuits, is a GaN MMIC Power Amplifier (PA) designed for demanding RF applications requiring high efficiency, excellent linearity, and a compact footprint.

Read more...

1200 V QSiC modules
Power Electronics / Power Management
SemiQ Inc has launched the QSiC Dual3, a family of 1200 V half-bridge MOSFET modules for motor drives in data centre cooling systems, grid converters in energy storage systems, and industrial drivers.

Read more...

MCOTS transient filter for military applications
RFiber Solutions Power Electronics / Power Management
SynQor has announced the new MCOTS-F-28-T-HE transient half-brick filter, the latest addition to its MCOTS product family.

Read more...

Expanded range of high-thermal-performance QSiC modules
Power Electronics / Power Management
SemiQ’s half-bridge series for data centre power converters and industrial motor drives features low RDSON SiC MOSFETs and parallel SBD diodes for best-in-class power density and conversion efficiency.

Read more...

Transporting lithium batteries and IoT devices
Power Electronics / Power Management
With billions of rechargeable and non-rechargeable lithium cells and batteries powering most of the world’s consumer and industrial electronic devices, shipping them to customers through vast global logistics chains is often an overlooked topic.

Read more...

Setting a new benchmark for high-power DC load testing
Conical Technologies Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.

Read more...

Quality batteries are critical for IIoT
Uniross Batteries Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.

Read more...

Categories

Power Electronics / Power Management

Low-current LDOs

Further reading:

Publications by Technews