LDLN025 Datasheet, PDF (1/22 Pages) STMicroelectronics – 250 mA ultra low noise LDO

LDLN025
250 mA ultra low noise LDO
Datasheet - production data
Features
 Ultra low output noise: 6.5 μVRMS
 Operating input voltage range: 1.5 V to 5.5 V
 Output current up to 250 mA
 Very low quiescent current: 12 μA at no-load
 Controlled Iq in dropout condition
 Very low-dropout voltage: 250 mV at
250 mA
 Very high PSRR: 80 dB@100 Hz,
60 dB@100 kHz
 Output voltage accuracy: 2% across line,
load and temperature
 Output voltage versions: from 1 V to 5 V,
with 50 mV step
 Logic-controlled electronic shutdown
 Output discharge feature
 Internal soft-start
 Overcurrent and thermal protections
 Temperature range: from -40 °C to +125 °C
 Packages: Flip-Chip4, DFN4-1x1
Applications
 Smartphones/tablets
 Image sensors
 Instrumentation
 VCO and RF modules
Description
The LDLN025 is a 250 mA low-dropout voltage
regulator, able to work with an input voltage
range from 1.5 V to 5.5 V.
The typical dropout voltage at 250 mA load is
120 mV.
The very low quiescent current, which is just
12 μA at no-load, extends battery-life of
applications requiring very long standby time.
Thanks to its ultra low noise value and high
PSRR, the LDLN025 provides a very clean
output, suitable for ultra-sensitive loads. It is
stable with ceramic capacitors.
The enable logic control function puts the device
into shutdown mode allowing a total current
consumption lower than 1 μA.
The device also includes short-circuit and thermal
protection.
Typical applications are noise sensitive loads
such as ADC, VCO in mobile phones and tablets,
wireless LAN devices. The LDLN025 is designed
to keep the quiescent current under control and
at a low value also during dropout operation,
extending the operating time of battery-powered
devices.
Several small package options are available.
November 2016
DocID029566 Rev 4
This is information on a product in full production.
1/22
www.st.com