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ADI LT3990EDD#TRPBF product image
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ADI LT3990EDD#TRPBFRoHS

Manufacturer
ADI
MPN
LT3990EDD#TRPBF
LCSC Part #
C671860
Packaging
DFN-10-EP(3x3)
Customer #
Key Attributes
62V, 350mA Step-Down Regulator with 2.5uA Quiescent Current and Integrated Diodes
Datasheetpdf iconADI LT3990EDD#TRPBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.6063$ 6.61
10+$ 6.4408$ 64.41
30+$ 6.3304$ 189.91
100+$ 6.2201$ 622.01
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingDFN-10-EP(3x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.3MHz
FunctionStep-down type
Number of Outputs1
FeaturesLight load efficient mode;Operating status indication;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.2V~62V
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current350mA
Quiescent Current1.9uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LT3990 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 62V, and consumes only 2.5µA of quiescent current. A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control and logic circuitry. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 5mV in a typical application. Current mode topology is used for fast transient response and good loop stability. A catch diode current limit provides protection against shorted outputs and overvoltage conditions. An accurate programmable undervoltage lockout feature is available, producing a low shutdown current of 0.7µA. A power good flag signals when VOUT reaches 90% of the programmed output voltage. The LT3990 is available in small, thermally enhanced 16-pin MSOP and 3mm×3mm DFN packages.

Features

AI Translation
  • Low Ripple Burst Mode Operation
  • 2.5µA I₀ at 12VIN to 3.3V₀UT
  • Output Ripple < 5mVₚ₋ₚ
  • Wide Input Voltage Range: 4.2V to 62V
  • Operating Adjustable Switching Frequency: 200kHz to 2.2MHz
  • Integrated Boost and Catch Diodes
  • 350mA Output Current
  • Fixed Output Voltages: 3.3V, 5V
  • 2µA I₀ at 12VIN
  • Accurate Programmable Undervoltage Lockout
  • FMEA Fault Tolerant (MSOP Package)
  • Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floating
  • Low Shutdown Current: I₀ = 0.7µA
  • Internal Sense Limits Catch Diode Current
  • Power Good Flag
  • Small, Thermally Enhanced 16-Pin MSOP and (3mm×3mm) DFN Packages

Applications

AI Translation
  • Automotive Battery Regulation
  • Power for Portable Products
  • Industrial Supplies