A6986:38 V 2 A synchronous step-down switching regulator with 30 uA quiescent current

The A6986 device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to VIN. The 100% duty cycle capability to withstand the cold crank event and the wide input voltage range make the A6986 device ideal for battery powered automotive systems. The “Low Consumption Mode” (LCM) is designed for applications active during car parking, so it maximizes the efficiency at the light-load with the controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the low noise application specification like car audio. The output voltage supervisor manages the reset phase for any digital load (μC, FPGA). The RST open collector output can also implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at the medium - heavy load, and the high switching frequency capability makes the size of the application compact. Pulse-by-pulse current sensing on both power elements implements effective constant current protection.

Key Features

  • AECQ100 qualification
  • 2 A DC output current
  • 4 V to 38 V operating input voltage
  • Low consumption mode or low noise mode
  • 30 μA IQ at light-load (LCM VOUT = 3.3 V)
  • 8 μA IQ-SHTDWN
  • Adjustable fSW (250 kHz - 2 MHz)
  • Output voltage adjustable from 0.85 V to VIN
  • Embedded output voltage supervisor
  • Synchronization
  • Adjustable soft-start time
  • Internal current limiting
  • Overvoltage protection
  • Output voltage sequencing
  • Peak current mode architecture
  • RDSON HS = 180 mΩ, RDSON LS = 150 mΩ
  • Thermal shutdown
产品规格
DescriptionVersionSize
DS10294: 38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current7.05 MB
HW Model & CAD Libraries
DescriptionVersionSize
A6986 Pspice model338 KB
宣传册
DescriptionVersionSize
A698x family High-performance automotive synchronous DC-DC converters1.01 MB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
解决方案评估工具
型号制造商Description
STEVAL-ISA158V1ST38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
A6986HTSSOP16Tube1.6881000NECEAR99MALAYSIA
A6986TRHTSSOP16Tape And Reel1.6881000NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
A6986HTSSOP16AutomotiveEcopack2md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_b5i0-wspc-uaf5ada.pdf
md_i0-wspc-htssop-wspc-16-wspc-4.xml
A6986TRHTSSOP16AutomotiveEcopack2md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_9bi0uaf5ada-wspc-(a6986tr)-wspc-wcp-wspc-ver2_signed.pdf
md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_9bi0uaf5ada-wspc-(a6986tr)-wspc-wcp-wspc-ver2.xml
38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current A6986
38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current A6986
38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current A6986
Very low drop voltage regulators with inhibit KFXX
md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_b5i0-wspc-uaf5ada.pdf A6986
md_i0-wspc-htssop-wspc-16-wspc-4.xml A6986
md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_9bi0uaf5ada-wspc-(a6986tr)-wspc-wcp-wspc-ver2_signed.pdf A6986
md_i0-wspc-htssop-wspc-16-wspc-4.4-wspc-pitch-wspc-0.65-wspc-expad_9bi0uaf5ada-wspc-(a6986tr)-wspc-wcp-wspc-ver2.xml A6986