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ADI LT8608SEV#TRMPBF product image
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ADI LT8608SEV#TRMPBFRoHS

Manufacturer
ADI
MPN
LT8608SEV#TRMPBF
LCSC Part #
C7456418
Packaging
LQFN-12(2x3)
Customer #
Key Attributes
42V, 1.5A Synchronous Step-Down Regulator with 3μA Quiescent Current
Datasheetpdf iconADI LT8608SEV#TRMPBF
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1+$ 11.0791$ 11.08
10+$ 10.7148$ 107.15
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingLQFN-12(2x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.2MHz
FunctionStep-down type
Number of Outputs1
FeaturesEMI optimization (spread spectrum);Frequency synchronization;Adjustable soft-start;Output voltage tracking;Light load efficient mode;Built-in LDO regulator;Operating status indication
Output TypeAdjustable
TopologyBuck
Operating Voltage2.5V~42V
Switch tube (built-in/external)Built-in
Output Voltage770mV~42V
Output Current1.5A
Quiescent Current3uA
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Introduction

AI Translation

The LT8608S is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 1.7µA of quiescent current. The LT8608S can deliver 1.5A of continuous current. 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 10mV. 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 LT8608S 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 ±8.0% of the programmed output voltage as well as fault conditions. The LT8608S is available in a small 12-lead LQFN package.

Features

AI Translation
  • Silent Switcher 2 Architecture Ultralow EMI/EMC 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: 3µA Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P
  • High Efficiency 2MHz Synchronous Operation: >90% Efficiency at 0.75A, 5VOUT from 12VIN
  • 1.5A Continuous Output Current
  • Fast Minimum Switch-On Time: 35ns
  • 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 12-Lead LQFN Package

Applications

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