LDLN050
LDLN050 is high performance low dropout linear regulator manufactured by STMicroelectronics.
DFN8 (3 x 3 mm)
Maturity status link LDLN050
500 m A, high performance low dropout linear regulator
Features
- Input voltage range: 2.7 V to 6.5 V
- Very low output voltage noise: 13 µVRMS/VOUT
- Low quiescent current: 48 µA typical
- 500 m A guaranteed output current
- Fast start-up time: 50 µs
- High PSRR: 65 d B at 100 Hz
- -40 °C to 125 °C ambient operative temperature range
- Very low dropout: 190 m V at max. IOUT
- Adjustable (from 1.25 V to 6 V) or fixed output voltage on request (from 1.0 V to
4.3 V)
- Stable with low ESR capacitor: min. 2 µF
- Current limit and thermal protections
- DFN8 (3 x 3 mm) standard for industrial
Application
- Low noise POL
- Wireless munication
- Industrial applications
Description
The LDLN050 is a 500 m A LDO regulator, designed to be used in several environments. The LDLN050 has a very low-resistance pass element (PMOS) that is even very fast during the turn-on. Thanks to its low-noise design, the LDLN050 can be used to supply noise sensitive circuits such as sensors, MCUs and wireless ICs in industrial applications. The LDO low current consumption (typically 48 µA) is also used on battery-supplied applications. On the adjustable version, the output voltage can be set to any desired value between 1.25 V and 6 V. Fixed voltage versions, between 1.0 V and 4.3 V (with 0.1 V step) can be provided upon request. On the fixed voltage versions only, an external capacitor can be connected to CNR pin to further reduce the noise on the regulated output voltage. The LDLN050 is available in DFN8 (3 x 3 mm) package.
DS12809
- Rev 4
- September 2021 For further information contact your local STMicroelectronics sales office.
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Diagram
Figure 1. Block diagram, adjustable version
VIN...