LT3042EMSE#PBF

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Analog Devices Inc./Maxim Integrated

LDO VOLTAGE REGULATOR, ADJUSTABLE, 1.8 V TO 20 V IN, 0 V TO 15 V OUT, 0.2 A OUT, MSOP-EP-10

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LT3042EMSE#PBF

Active

Analog Devices Inc./Maxim Integrated

LDO VOLTAGE REGULATOR, ADJUSTABLE, 1.8 V TO 20 V IN, 0 V TO 15 V OUT, 0.2 A OUT, MSOP-EP-10

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3042 Series

The LT3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.The device supplies 200mA at a typical 350mV dropout voltage. Operating quiescent current is nominally 2mA and drops to <<1μA in shutdown. The LT3042’s wide output voltage range (0V to 15V) while maintaining unity-gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start-up capability and programmable power good to indicate output voltage regulation.The LT3042 is stable with a minimum 4.7μF ceramic output capacitor. Built-in protection includes reverse battery protection, reverse current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3042 is available in thermally enhanced 10-Lead MSOP and 3mm × 3mm DFN packages.ApplicationsRF Power Supplies: PLLs, VCOs, Mixers, LNAsVery Low Noise InstrumentationHigh Speed/High Precision Data ConvertersMedical Applications: Imaging, DiagnosticsPrecision Power SuppliesPost-Regulator for Switching Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT3042EMSE#PBF

Control Features	Enable, Current Limit, Power Good
Current - Output	200 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Features	Exposed Pad
Package Length	0.118 in
Package Name	10-MSOP, 10-MSOP-EP
Package Width	3 mm
Protection Features	Reverse Polarity, Over Temperature
PSRR (Maximum)	117 dB
PSRR (Minimum)	56 dB
Voltage - Input (Max)	20 V
Voltage - Output (Max)	15 V
Voltage - Output (Min/Fixed)	0 V
Voltage Dropout (Typical)	0.35 V

LT3042 Series

Part	Package / Case	Mounting Type	Output Configuration	Control Features	Operating Temperature (Max)	Operating Temperature (Min)	Protection Features	Output Type	Voltage - Output (Max)	Package Length	Package Name	Package Width	Number of Regulators	PSRR (Maximum)	PSRR (Minimum)	Voltage - Input (Max)	Current - Output	Voltage Dropout (Typical)	Package Features
Analog Devices Inc./Maxim Integrated LT3042EDD#TRPBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	125 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042MPMSE#PBF		Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-55 °C	Over Temperature Reverse Polarity	Adjustable	15 V	0.118 in	10-MSOP 10-MSOP-EP	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3042MPDD#TRPBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-55 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042HDD#PBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042IDD#PBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	125 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042EMSE#TRPBF		Surface Mount	Positive	Current Limit Enable Power Good	125 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	0.118 in	10-MSOP 10-MSOP-EP	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3042HDD#TRPBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042HMSE#TRPBF		Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	0.118 in	10-MSOP 10-MSOP-EP	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3042EDD#PBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	125 °C	-40 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V
Analog Devices Inc./Maxim Integrated LT3042MPDD#PBF	10-WFDFN Exposed Pad	Surface Mount	Positive	Current Limit Enable Power Good	150 °C	-55 °C	Over Temperature Reverse Polarity	Adjustable	15 V	3 mm	10-DFN	3 mm	1	117 dB	56 dB	20 V	200 mA	0.35 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R531 Reliability Data

LT3042: 20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator Data Sheet (Rev.C)

LT3042EMSE#PBF | Datasheet