Specification	LT3046ATC+

Current - Output	0.2 A
Current - Supply (Max) [Max]	15 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 / Case	12-WFDFN Exposed Pad
Protection Features	Reverse Polarity, Over Current, Reverse Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
PSRR [Max]	102 dB
PSRR [Min]	60 dB
Supplier Device Package	12-DFN (3x3)
Voltage - Input (Max) [Max]	20 V
Voltage - Output (Max) [Max]	19 V
Voltage - Output (Min/Fixed)	0.2 V
Voltage Dropout (Max)	0.47 V

LT3046 Series

20V, 200mA, Ultra-Low Noise, Ultra-High PSRR, Linear Regulator

Part	Output Type	Current - Supply (Max) [Max]	PSRR [Min]	PSRR [Max]	Protection Features	Number of Regulators	Mounting Type	Supplier Device Package	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Current - Output	Output Configuration	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Voltage Dropout (Max)
Analog Devices Inc./Maxim Integrated LT3046ATC+	Adjustable	15 mA	60 dB	102 dB	Over Current Over Temperature Reverse Current Reverse Polarity Short Circuit Under Voltage Lockout (UVLO)	1	Surface Mount	12-DFN (3x3)	12-WFDFN Exposed Pad	-40 C	125 °C	20 V	0.2 A	Positive	0.2 V	19 V	0.47 V
Analog Devices Inc./Maxim Integrated LT3046ATC+T	Adjustable	15 mA	60 dB	102 dB	Over Current Over Temperature Reverse Current Reverse Polarity Short Circuit Under Voltage Lockout (UVLO)	1	Surface Mount	12-DFN (3x3)	12-WFDFN Exposed Pad	-40 C	125 °C	20 V	0.2 A	Positive	0.2 V	19 V	0.47 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	356	$ 6.89	1m+
		1960	$ 6.89
	Tray	1	$ 8.82	1m+
		10	$ 6.08
		25	$ 5.37
		80	$ 4.69
		230	$ 4.23
		440	$ 4.01
		945	$ 3.79
		2400	$ 3.65
Mouser	N/A	1	$ 6.89	1m+
		10	$ 5.31
		25	$ 4.51
		100	$ 4.23
		980	$ 4.08
		2940	$ 3.86
Newark	Each	1	$ 8.45	1m+
		10	$ 5.68
		25	$ 4.96
		50	$ 4.60
		100	$ 4.25
		250	$ 3.77
		980	$ 3.65

Description

General part information

LT3046 Series

The LT3046 is a high-performance, low-dropout linear regulator featuring Analog Devices, Inc. ultra-low noise and ultra-high PSRR architecture for powering noisesensitive applications. Designed as a precision current reference followed by a high-performance voltage buffer, the LT3046 can be easily paralleled to further reduce noise, increase output current, and spread heat on the PCB.The device supplies 200mA at a typical 300mV dropout voltage. Operating quiescent current is nominally 3.7mA and drops to 26μA in shutdown. The LT3046’s wide output-voltage range (0.2V to 19V) 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.Built-in protection includes reverse-battery protection, reverse-current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3046 is available in a thermally enhanced, 12-lead, 3mm × 3mm, DFN package.APPLICATIONSRF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs Very Low-Noise Instrumentation High-Speed/High-Precision Data Converters Post-Regulator for Switching Supplies

Documents

Technical documentation and resources

LT3046: 20V, 200mA, Ultra-Low Noise, Ultra-High PSRR, Linear Regulator Data Sheet (Rev.0)

Data Sheet