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A8589KLPTR-T
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A8589KLPTR-T

  • Category:Voltage regulator
  • Product Name:Wide input voltage, 2.4 MHz, 2.5 A asynchronous buck regulator with low IQ standby, sleep mode, external synchronization, and NPOR output performance
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:16-lead TSSOP
  • Stock Status:There is stock
  • Stock Quantity:9030
  • Minimum order quantity: 1
  • Details:Click to find a PDF of A8589KLPTR-T
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  • Product introduction

A8589Designed to meet the power needs of next-generation automotive audio and infotainment systems, providing all control and protection circuitry to produce high-current regulators with ±1.0% output voltage accuracy. The A8589 uses pulse frequency modulation (PFM) to obtain less than 50 from 12VμINAvoltage, simultaneous output of 3.3 V/40 μA. After startup, the A8589 runs to at least 3.6 VIN(VINContinued decline).

The performance of the A8589 includes PWM/PFMn mode control inputs, PWM (Logic High) or PFM (Logic Low) enabled. If the PWM/PFMn input is driven by an external clock signal above the base frequency (fOSC), the PWM frequency will be synchronized with the input clock frequency. The SLEEPn input pin controls a very low current cut-off mode with less than 5 μA internal circuit requirements and 10 μA maximum MOSFET pressure leak at 16 VIN,85ºC。 The A8589 is externally compensated to accommodate a wide range of frequencies and external components, and provides a power-on reset (NPOR) signal with output voltage verification.

The A8589's extensive protection features include pulse-by-pulse current limit, hiccup mode short-circuit protection, on/short asynchronous diode protection, BOOT on/short voltage protection, VIN undervoltage lockout, VOUTOvervoltage protection and thermal shutdown.

A8589Power is supplied in a low-configuration 16-pin TSSOP package with an exposed power board (suffix LP). The package is lead (Pb) free with 100% matte tin leadframe plating.

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  • For automobiles
    • Instrument cluster
    • Sound system
    • navigation
    • HVAC
  • Home audio
    • Automotive AEC-Q100 compliant
    • Withstand impulse voltages up to 40 V
    • Operates as low as 3.4 VIN(typ), VIN keeps declining
    • Pulse frequency modulation (PFM) is used from VINOnly tens of microamps are obtained while maintaining dimensional arc VOUT
    • PWM/PFMn mode controls the input pins
    • Provides up to 2.5 A of output current and integrated 110 mΩ high voltage MOSFETs
    • The SLEEPn input pin controls a very low current shutdown mode
    • Adjustable output voltage with °1.0% accuracy over the 0±C to 85°C temperature range and °1.5% accuracy over the 40±C to 150–C° temperature range
    • Programmable switching frequency: 250 kHz to 2.4 MHz
    • Sync function: Apply clock input to
    • The PWM/PFMn input pin will increase the PWM frequency
    • Low-level, power-on reset (NPOR) open-drain output
    • Maximum duty cycle of low dropout pressure
    • Prebias startup is possible with no reset of the output voltage
    • External compensation can be used for maximum flexibility
    • Compatible with ceramic or electrolytic output capacitors
    • Excellent protection to meet the most stringent application requirements
    • Overvoltage, pulse-by-pulse current limit, hiccup mode short-circuit protection, and thermal protection
    • Robust FMEA protects against pin open/short circuits and component faults
    • Surface mount package with enhanced thermal dissipation

andA8589KLPTR-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
A8589KLPTR-T Allegro 15+ 16-lead TSSOP Wide input voltage, 2.4 MHz, 2.5 A asynchronous buck regulator with low IQ standby, sleep mode, external synchronization, and NPOR output performance

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