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ADI LT3045EDD-1#TRPBF product image
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ADI LT3045EDD-1#TRPBFRoHS

Manufacturer
ADI
MPN
LT3045EDD-1#TRPBF
LCSC Part #
C666576
Packaging
DFN-12(3x3)
Customer #
Key Attributes
20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator with VIOC Control
Datasheetpdf iconADI LT3045EDD-1#TRPBF
In-Stock: 2,674
2,674 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 8.7791$ 8.0768$ 8.08
10+$ 7.6951$ 7.0795$ 70.80
30+$ 6.5657$ 6.0405$ 181.22
100+$ 6.0115$ 5.5306$ 553.06
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufacturerADI
PackagingDFN-12(3x3)
Output Voltage0V~15V
Number of Outputs1
Operating Temperature-40℃~+125℃@(Tj)
Supply Current (Iq)2.3mA
Output ConfigurationPositive
Output Current500mA
Operating Voltage20V
Output TypeAdjustable
FeaturesAdjustable current limiting;Operating status indication;Enable control;Input under-voltage protection;Reverse polarity voltage protection;Reverse-polarity current protection;Thermal shutdown;Short Circuit Protection;Over Current Protection
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LT3045-1 is a high performance low dropout linear regulator featuring 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 LT3045-1 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. In addition to the LT3045 feature set, the LT3045-1 incorporates a VIOC tracking function to control an upstream switching converter to maintain a constant voltage across the LT3045-1 and hence minimize power dissipation. The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.3mA and drops to <1µA in shutdown. The LT3045-1’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.

Features

AI Translation
  • Ultralow RMS Noise: 0.8µV_RMS (10Hz to 100kHz)
  • Ultralow Spot Noise: 2nV/√Hz at 10kHz
  • Ultrahigh PSRR: 76dB at 1MHz
  • Output Current: 500mA
  • Wide Input Voltage Range: 1.8V to 20V
  • Single Capacitor Improves Noise and PSRR
  • 100µA SET Pin Current: ±1% Initial Accuracy
  • VIOC Pin Controls Upstream Regulator to Minimize Power Dissipation
  • Single Resistor Programs Output Voltage
  • Programmable Current Limit
  • Low Dropout Voltage: 260mV
  • 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: 10µF Ceramic
  • Reverse-Battery and Reverse-Current Protection
  • 12-Lead MSOP and 3mm × 3mm DFN Packages

Applications

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