Specification	LT3045HMSE#Z-EP

Control Features	Power Good, Enable
Current - Output	500 mA
Current - Supply (Max) [Max]	25 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	12-TSSOP, Exposed Pad
Package / Case [x]	0.118 in
Package / Case [y]	3 mm
Protection Features	Reverse Polarity, Under Voltage Lockout (UVLO), Over Temperature, Over Current
PSRR [Max]	117 dB
PSRR [Min]	53 dB
Supplier Device Package	12-MSOP-EP
Voltage - Input (Max) [Max]	20 V
Voltage - Output (Max) [Max]	15 V
Voltage - Output (Min/Fixed)	0 V
Voltage Dropout (Max) [Max]	0.45 V

LT3045 Series

20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator

Part	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Control Features	Current - Supply (Max) [Max]	Mounting Type	Protection Features	PSRR [Max]	PSRR [Min]	Voltage - Output (Max) [Max]	Output Type	Voltage Dropout (Max) [Max]	Current - Output	Number of Regulators	Output Configuration	Supplier Device Package	Voltage - Input (Max) [Max]	Package / Case [y]	Package / Case [x]	Current - Quiescent (Iq)
Analog Devices Inc./Maxim Integrated LT3045MPDD#TRPBF	10-WFDFN Exposed Pad	-55 ░C	125 °C	Enable Power Good	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	10-DFN (3x3)	20 V
Analog Devices Inc./Maxim Integrated LT3045HMSE#Z-EP	12-TSSOP Exposed Pad	-40 °C	150 °C	Enable Power Good	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	12-MSOP-EP	20 V	3 mm	0.118 in
Analog Devices Inc./Maxim Integrated LT3045EDD#PBF	10-WFDFN Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	10-DFN (3x3)	20 V			20 çA
Analog Devices Inc./Maxim Integrated LT3045EMSE-1#PBF	12-TSSOP Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	12-MSOP-EP	20 V	3 mm	0.118 in	20 çA
Analog Devices Inc./Maxim Integrated LT3045HMSE#PBF	12-TSSOP Exposed Pad	-40 °C	150 °C	Enable Power Good	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	12-MSOP-EP	20 V	3 mm	0.118 in	2.2 mA
Analog Devices Inc./Maxim Integrated LT3045EDD#TRPBF	10-WFDFN Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	10-DFN (3x3)	20 V			20 çA
Analog Devices Inc./Maxim Integrated LT3045IDD#TRPBF	10-WFDFN Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	10-DFN (3x3)	20 V			20 çA
Analog Devices Inc./Maxim Integrated LT3045IDD#PBF	10-WFDFN Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	10-DFN (3x3)	20 V			20 çA
Analog Devices Inc./Maxim Integrated LT3045IMSE#PBF	12-TSSOP Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	12-MSOP-EP	20 V	3 mm	0.118 in	20 çA
Analog Devices Inc./Maxim Integrated LT3045IMSE-1#TRPBF	12-TSSOP Exposed Pad	-40 C	125 °C	Enable Power Good Soft Start	25 mA	Surface Mount	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	117 dB	53 dB	15 V	Adjustable	0.45 V	500 mA	1	Positive	12-MSOP-EP	20 V	3 mm	0.118 in	20 çA

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	0	$ 0.00	1m+

Description

General part information

LT3045 Series

The LT3045 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3045 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.2mA and drops to <<1µA in shutdown. The LT3045’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 LT3045 is stable with a minimum 10µF ceramic output capacitor. Built-in protection includes reverse-battery protection, reverse-current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3045 is available in thermally enhanced 12-Lead MSOP and 10-Lead 3mm × 3mm DFN packages.The LT3045-EP supports defense and aerospace applications (AQEC).VIOC FunctionLT3045-1YesLT3045NoAPPLICATIONSRF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAsVery Low Noise InstrumentationHigh Speed/High Precision Data ConvertersMedical Applications: Imaging, DiagnosticsPrecision Power SuppliesPost-Regulator for Switching Supplies

Documents

Technical documentation and resources

V62/21614 Data Sheet

Data Sheet

SCP-LT3045-1-EVALZ - Demo Manual (Rev.0)

User Guide

LT3045-DICE: 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator (Rev.0)

Data Sheet

R531 Reliability Data

Reliability Data

LT3045-EP: 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator Data Sheet (Rev.A)

Data Sheet

LT3045: 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator Data Sheet (Rev.D)

Data Sheet