LDLN025
Datasheet
250 mA ultra low noise LDO
Features
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Flip-Chip4
DFN4-1x1
Ultra low output noise: 6.5 μV
RMS
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 I
q
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, SOT23-5L
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SOT23-5L
Applications
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Smartphones/tablets
Image sensors
Instrumentation
VCO and RF modules
Maturity status link
LDLN025
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.
DS11756
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Rev 6
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October 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
Embedded System
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