Analog Devices

LT3042EDD#TRPBF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Manufacturer
MPN
LT3042EDD#TRPBF
Package / Case
TDFN-10-EP
Key Attributes
20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator

Technical Specifications

TypeDescription
Output TypeAdjustable
Output Voltage7.5 V
Output Current0.2 A
Working Voltage V20 V
Channels1
TypeDescription
Iq A0.002 A
Output ConfigurationPositive
Operating Temp-40°C ~ +125°C @(Tj)
FeaturesEnable control;Adjustable current limiting;Operating status indication;Input under-voltage protection;Reverse polarity voltage protection;Reverse-polarity current protection;Thermal shutdown;Short Circuit Protection;Over Current Protection
Package / CaseTDFN-10-EP

Product Introduction

The ±√3042 is a high performance low dropout linear regulator featuring 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, it 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 <<1A in shutdown. Its 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.

It 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. It is available in thermally enhanced 10 - Lead MSOP and 3mm × 3mm DFN packages.

Features

  • Ultralow RMS Noise: 0.8µVRMS (10Hz to 100kHz)
  • Ultralow Spot Noise: 2nV/√Hz at 10kHz
  • Ultrahigh PSRR: 79dB at 1MHz
  • Output Current: 200mA
  • Wide Input Voltage Range: 1.81 to 20V
  • Single Capacitor Improves Noise and PSRR
  • 100µA SET Pin Current: ±1% Initial Accuracy
  • Single Resistor Programs Output Voltage
  • High Bandwidth: 1MHz
  • Programmable Current Limit
  • Low Dropout Voltage: 350mV
  • Output Voltage Range: 0V to 15V
  • Programmable Power Good
  • Fast Start - Up Capability
  • Precision Enable/UVLO
  • Parallelable for Lower Noise and Higher Current
  • Internal Current Limit with Foldback
  • Minimum Output Capacitor: 4.7µF Ceramic
  • Reverse Battery and Reverse Current Protection
  • 10 - Lead MSOP and 3mm × 3mm DFN Packages

Applications

  • - RF Power Supplies: PLLs, VCOs, Mixers, LNAs - Very Low Noise Instrumentation - High Speed/High Precision Data Converters - Medical Applications: Imaging, Diagnostics - Precision Power Supplies - Post - Regulator for Switching Supplies

Datasheet

📄 Open Download

Alternative Parts

Common LT3042EDD#TRPBF alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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