LDLN030

300 mA ultra-low noise LDO with Power Good and Soft Start

Quick View Resources

The LDLN030 is a 300 mA very low-dropout voltage regulator, able to work with an input voltage ranging from 1.6 V to 5.5 V.

The typical dropout voltage at 300 mA load is 150 mV.

The very low quiescent current, which is just 16 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 device provides a very clean output, suitable for ultra-sensitive loads. It is stable with ceramic capacitors.

The enable logic control function puts the LDLN030 into shutdown mode allowing a total current consumption lower than 1 μA.

The device also includes short-circuit constant current limiting, undervoltage lockout, soft-start, Power Good and thermal protection.

Typical applications are noise sensitive loads such as ADC, VCO in mobile phones and tablets, wireless lan devices. The LDLN030 is designed to keep the quiescent current under control and at a low value also during dropout operation, helping to extend even more the operating time of battery-powered devices.

Key Features

Ultra-low output noise: 7.5 µV_RMS
Operating input voltage range: 1.6 V to 5.5 V
Undervoltage lockout
Output current up to 300 mA
Very low quiescent current:16 µA at no-load
Controlled Iq in dropout condition
Very low dropout voltage: 100 mV at 200 mA, 150 mV at 300 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
Power Good
Output discharge feature
Internal soft-start to limit the in-rush current
Overcurrent and thermal protections
Temperature range: from -40 °C to +125 °C
Package: TSOT23-5L

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DS12443: 300 mA ultra low-noise LDO with Power Good and soft-start	1.0	1 MB

Publications and Collaterals

Selection Guides

	Description	Version	Size
	Linear and Switching Voltage Regulators Selection Guide	3.0	370 KB

Brochures

Description	Version	Size
Brochure Power management guide	10.2018	4 MB
Low-dropout (LDO) linear voltage regulators - Quick Reference Guide	2.0	216 KB
Power management for handheld and portable	2.0	1 MB

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Sample & Buy

Part Number	Package	Packing Type	Output Voltage (V) (nom)	Output Tolerance (typ)	Output Current (A) (nom)	Marketing Status	Unit Price (US$) *	Quantity	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
LDLN030G33R	TSOT23-5L	Tape And Reel	-	2	0.3	Active : Product is in volume production	0.098	1000	EAR99	MALAYSIA	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
LDLN030G33R	Active	TSOT23-5L	Industrial	Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.