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ADI LT8609SIV#PBFRoHS

Manufacturer
ADI
MPN
LT8609SIV#PBF
LCSC Part #
C580305
Packaging
LQFN-16-EP(3x3)
Customer #
Key Attributes
42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5uA Quiescent Current
Datasheetpdf iconADI LT8609SIV#PBF
In-Stock: 143
143 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 8.6226$ 8.0191$ 8.02
10+$ 7.2641$ 6.7557$ 67.56
30+$ 6.6067$ 6.1443$ 184.33
100+$ 6.0561$ 5.6322$ 563.22
Standard Packaging624/Full Tray
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingLQFN-16-EP(3x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.2MHz
FunctionStep-down type
Number of Outputs1
FeaturesFrequency synchronization;EMI optimization (spread spectrum);Adjustable soft-start;Output voltage tracking;Light load efficient mode;Built-in LDO regulator;Operating status indication
Output TypeAdjustable
TopologyBuck
Operating Voltage3V~42V
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current3A
Quiescent Current1.7uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging624
Sales UnitPiece

Introduction

AI Translation

The LT8609S is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 1.7μA of non-switching quiescent current. The LT8609S can deliver 2A of continuous current with peak loads of 3A (<1sec) to support applications such as GSM transceivers which require high transient loads. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mVP-P. A SYNC pin allows synchronization to an external clock, or spread spectrum modulation of switching frequencies for low EMI operation. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VIN undervoltage lockout or to shut down the LT8609S reducing the input supply current to 1µA. A capacitor on the TR/SS pin programs the output voltage ramp rate during start-up while the PG flag signals when VOUT is within ±8.5% of the programmed output voltage as well as fault conditions. The LT8609S is available in a small 16-lead 3mm × 3mm LQFN package.

Features

AI Translation
  • Silent Switcher 2 Architecture
  • Ultralow EMI Emissions on Any PCB
  • Eliminates PCB Layout Sensitivity
  • Internal Bypass Capacitors Reduce Radiated EMI
  • Optional Spread Spectrum Modulation
  • Wide Input Voltage Range: 3.0V to 42V
  • Ultralow Quiescent Current Burst Mode Operation: <2.5μA Regulating 12VIN to 3.3VOUT
  • Output Ripple <10mVP-P
  • High Efficiency 2MHz Synchronous Operation: >93% Efficiency at 1A, 12VIN to 5VOUT
  • 2A Maximum Continuous Output, 3A Peak Transient Output
  • Fast Minimum Switch-On Time: 45ns
  • Adjustable and Synchronizable: 200kHz to 2.2MHz
  • Allows Use of Small Inductors
  • Low Dropout Peak Current Mode Operation
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Small 16-Lead 3mm × 3mm LQFN Package
  • AEC-Q100 Qualified for Automotive Applications

Applications

AI Translation
  • General Purpose Step Down
  • Low EMI Step Down