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                                                                                                  1. Home
                                                                                                  2. Semiconductors - ICs
                                                                                                  3. Power Management ICs - PMIC
                                                                                                  4. Voltage Regulators
                                                                                                  5. DC / DC Switching Regulators
                                                                                                  Print Page

                                                                                                  A7986ATR

                                                                                                  DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.5V-38Vin, 600mV-38Vout, 3Aout, HSOP-8

                                                                                                  STMICROELECTRONICS
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  STMICROELECTRONICS A7986ATR
                                                                                                  ManufacturerSTMICROELECTRONICS
                                                                                                  Manufacturer Part NoA7986ATR
                                                                                                  Newark Part No.80X3154
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  Packaging Options
                                                                                                  330 In Stock

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                                                                                                  QuantityPrice
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                                                                                                  10+$1.710
                                                                                                  25+$1.700
                                                                                                  50+$1.580
                                                                                                  100+$1.480
                                                                                                  250+$1.460
                                                                                                  500+$1.440
                                                                                                  1000+$1.360
                                                                                                  Price for:Each (Supplied on Cut Tape)
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                                                                                                  Multiple: 1
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                                                                                                  Product Information

                                                                                                  STMICROELECTRONICS
                                                                                                  ManufacturerSTMICROELECTRONICS
                                                                                                  Manufacturer Part NoA7986ATR
                                                                                                  Newark Part No.80X3154
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Regulator Output TypeAdjustable
                                                                                                  Output TypeAdjustable
                                                                                                  No. of Outputs1Outputs
                                                                                                  TopologyBuck (Step Down)
                                                                                                  Input Voltage Min4.5V
                                                                                                  Input Voltage Max38V
                                                                                                  Max Output Current3A
                                                                                                  Output Current3A
                                                                                                  IC Case / PackageHSOP
                                                                                                  No. of Pins8Pins
                                                                                                  IC MountingSurface Mount
                                                                                                  Output Voltage - Nom-
                                                                                                  Output Voltage Min600mV
                                                                                                  Output Voltage Max38V
                                                                                                  Switching Frequency Typ250kHz
                                                                                                  Efficiency-
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max150°C
                                                                                                  Product Range-
                                                                                                  QualificationAEC-Q100
                                                                                                  MSLMSL 3 - 168 hours
                                                                                                  SVHCNo SVHC (21-Jan-2025)
                                                                                                  DC / DC Converter IC CaseHSOP
                                                                                                  Automotive Qualification StandardAEC-Q100
                                                                                                  Switching Frequency1MHz

                                                                                                  Product Overview

                                                                                                  The A7986ATR is a step-down Switching Regulator with a 3.7A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 3A current to the load depending on the application conditions. The input voltage can range from 4.5 to 38V, while the output voltage can be set starting from 0.6V to VIN. Requiring a minimum set of external components, the device includes an internal 250kHz switching frequency oscillator that can be externally adjusted up to 1MHz.

                                                                                                  • Internal soft-start and enable
                                                                                                  • Voltage feed-forward
                                                                                                  • Zero load current operation
                                                                                                  • Overcurrent and thermal protection
                                                                                                  • 100% Duty cycle of low dropout operation

                                                                                                  Technical Specifications

                                                                                                  Regulator Output Type

                                                                                                  Adjustable

                                                                                                  No. of Outputs

                                                                                                  1Outputs

                                                                                                  Input Voltage Min

                                                                                                  4.5V

                                                                                                  Max Output Current

                                                                                                  3A

                                                                                                  IC Case / Package

                                                                                                  HSOP

                                                                                                  IC Mounting

                                                                                                  Surface Mount

                                                                                                  Output Voltage Min

                                                                                                  600mV

                                                                                                  Switching Frequency Typ

                                                                                                  250kHz

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Product Range

                                                                                                  -

                                                                                                  MSL

                                                                                                  MSL 3 - 168 hours

                                                                                                  DC / DC Converter IC Case

                                                                                                  HSOP

                                                                                                  Switching Frequency

                                                                                                  1MHz

                                                                                                  Output Type

                                                                                                  Adjustable

                                                                                                  Topology

                                                                                                  Buck (Step Down)

                                                                                                  Input Voltage Max

                                                                                                  38V

                                                                                                  Output Current

                                                                                                  3A

                                                                                                  No. of Pins

                                                                                                  8Pins

                                                                                                  Output Voltage - Nom

                                                                                                  -

                                                                                                  Output Voltage Max

                                                                                                  38V

                                                                                                  Efficiency

                                                                                                  -

                                                                                                  Operating Temperature Max

                                                                                                  150°C

                                                                                                  Qualification

                                                                                                  AEC-Q100

                                                                                                  SVHC

                                                                                                  No SVHC (21-Jan-2025)

                                                                                                  Automotive Qualification Standard

                                                                                                  AEC-Q100

                                                                                                  Technical Docs (2)

                                                                                                  Technical Data Sheet EN

                                                                                                  Product Change Notice EN

                                                                                                  Associated Products

                                                                                                  2 Products Found

                                                                                                  Legislation and Environmental

                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:Unknown
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (21-Jan-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

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