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Allegro MicroSystems Inc. Automotive Wide Vin 3A, 2.4Mhz Asynchronous Buck Regulator ARG81801KESJSR

Description
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the ARG81801 provides all the control and protection circuitry to produce a high current regulator with ±1.0% output voltage accuracy. After startup, the ARG81801 operates down to at least 3.6 VIN (VIN falling). If the SYNC input is driven by an external clock signal higher than the base frequency (fOSC), the PWM frequency synchronizes to the incoming clock frequency. The SLEEP input pin commands an ultralow current shutdown mode requiring less than 5 μA for internal circuitry and 10 μA (max) for MOSFET leakage at 16 VIN, 85°C. The ARG81801 has external compensation to accommodate a wide range of frequencies and external components, and provides a Power OK (POK) signal validated by the output voltage. The ARG81801 uses an Enhanced Idle/Stop-Start Recovery technique to reduce or eliminate output overshoot when VIN recovers from levels below VIN minimum (i.e. VOUT drops out of regulation). Extensive protection features of the ARG81801 include pulse-by-pulse current limit, hiccup mode short circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, VOUT overvoltage protection, and thermal shutdown. The ARG81801 is supplied in a 24-pin wettable flank QFN package with exposed power pad (suffix ES). It is lead (Pb) free, with 100% matte-tin leadframe plating.
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Suppliers

Company
Product
Description
Supplier Links
Automotive Wide Vin 3A, 2.4Mhz Asynchronous Buck Regulator - ARG81801KESJSR - Allegro MicroSystems Inc.
Manchester, NH, United States
Automotive Wide Vin 3A, 2.4Mhz Asynchronous Buck Regulator
ARG81801KESJSR
Automotive Wide Vin 3A, 2.4Mhz Asynchronous Buck Regulator ARG81801KESJSR
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the ARG81801 provides all the control and protection circuitry to produce a high current regulator with ±1.0% output voltage accuracy. After startup, the ARG81801 operates down to at least 3.6 VIN (VIN falling). If the SYNC input is driven by an external clock signal higher than the base frequency (fOSC), the PWM frequency synchronizes to the incoming clock frequency. The SLEEP input pin commands an ultralow current shutdown mode requiring less than 5 μA for internal circuitry and 10 μA (max) for MOSFET leakage at 16 VIN, 85°C. The ARG81801 has external compensation to accommodate a wide range of frequencies and external components, and provides a Power OK (POK) signal validated by the output voltage. The ARG81801 uses an Enhanced Idle/Stop-Start Recovery technique to reduce or eliminate output overshoot when VIN recovers from levels below VIN minimum (i.e. VOUT drops out of regulation). Extensive protection features of the ARG81801 include pulse-by-pulse current limit, hiccup mode short circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, VOUT overvoltage protection, and thermal shutdown. The ARG81801 is supplied in a 24-pin wettable flank QFN package with exposed power pad (suffix ES). It is lead (Pb) free, with 100% matte-tin leadframe plating.

Designed to provide the power supply requirements of next generation car audio and infotainment systems, the ARG81801 provides all the control and protection circuitry to produce a high current regulator with ±1.0% output voltage accuracy. After startup, the ARG81801 operates down to at least 3.6 VIN (VIN falling).

If the SYNC input is driven by an external clock signal higher than the base frequency (fOSC), the PWM frequency synchronizes to the incoming clock frequency. The SLEEP input pin commands an ultralow current shutdown mode requiring less than 5 μA for internal circuitry and 10 μA (max) for MOSFET leakage at 16 VIN, 85°C.

The ARG81801 has external compensation to accommodate a wide range of frequencies and external components, and provides a Power OK (POK) signal validated by the output voltage.

The ARG81801 uses an Enhanced Idle/Stop-Start Recovery technique to reduce or eliminate output overshoot when VIN recovers from levels below VIN minimum (i.e. VOUT drops out of regulation).

Extensive protection features of the ARG81801 include pulse-by-pulse current limit, hiccup mode short circuit protection, open/short asynchronous diode protection, BOOT open/short voltage protection, VIN undervoltage lockout, VOUT overvoltage protection, and thermal shutdown.

The ARG81801 is supplied in a 24-pin wettable flank QFN package with exposed power pad (suffix ES). It is lead (Pb) free, with 100% matte-tin leadframe plating.

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSR - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSR
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators ARG81801KESJSR
IC REG BUCK ADJ 3A 24QFN

IC REG BUCK ADJ 3A 24QFN

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSRTR-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSRTR-ND
Voltage Regulators - DC DC Switching Regulators ARG81801KESJSRTR-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSRDKR-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSRDKR-ND
Voltage Regulators - DC DC Switching Regulators ARG81801KESJSRDKR-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSRCT-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSRCT-ND
Voltage Regulators - DC DC Switching Regulators ARG81801KESJSRCT-ND
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSR - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSR
PMIC - Voltage Regulators - DC DC Switching Regulators ARG81801KESJSR
IC REG AUTO WIDE VIN 3A 24QFN

IC REG AUTO WIDE VIN 3A 24QFN

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - ARG81801KESJSR - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
ARG81801KESJSR
Voltage Regulators - DC DC Switching Regulators ARG81801KESJSR
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-WFQFN Exposed Pad

Supplier's Site Datasheet
Yishun, Singapore
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
1347144-ARG81801KESJSR
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators 1347144-ARG81801KESJSR
Win Source Part Number: 1347144-ARG81801KESJ SR Category: Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Package: Tape & Reel Standard Package: 1,500 Current - Output: 3A Output Type: Adjustable Function: Step-Down Topology: Buck Frequency - Switching: 250kHz ~ 2.4MHz Voltage - Output (Max): 28V Number of Outputs: 1 Output Configuration: Positive Voltage - Input (Min): 4V Voltage - Input (Max): 35V Voltage - Output (Min/Fixed): 0.8V Synchronous Rectifier: No Mounting Type: Surface Mount Package / Case: 24-WFQFN Exposed Pad Supplier Device Package: 24-QFN (4x4) Temperature Range - Operating: -40°C ~ 150°C (TA) ECCN: EAR99 Fake Threat In the Open Market: 51 pct. MSL Level: 2 (1 Year) REACH Status: REACH Unaffected HTSUS: 8542.39.0001 Mfr: Allegro MicroSystems Base Product Number: ARG818

Win Source Part Number: 1347144-ARG81801KESJSR
Category: Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
Package: Tape & Reel
Standard Package: 1,500
Current - Output: 3A
Output Type: Adjustable
Function: Step-Down
Topology: Buck
Frequency - Switching: 250kHz ~ 2.4MHz
Voltage - Output (Max): 28V
Number of Outputs: 1
Output Configuration: Positive
Voltage - Input (Min): 4V
Voltage - Input (Max): 35V
Voltage - Output (Min/Fixed): 0.8V
Synchronous Rectifier: No
Mounting Type: Surface Mount
Package / Case: 24-WFQFN Exposed Pad
Supplier Device Package: 24-QFN (4x4)
Temperature Range - Operating: -40°C ~ 150°C (TA)
ECCN: EAR99
Fake Threat In the Open Market: 51 pct.
MSL Level: 2 (1 Year)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Allegro MicroSystems
Base Product Number: ARG818

Supplier's Site Datasheet

Technical Specifications

  Allegro MicroSystems Inc. Shenzhen Shengyu Electronics Technology Limited DigiKey Lingto Electronic Limited Quarktwin Technology Ltd. Win Source Electronics
Product Category IC Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number ARG81801KESJSR ARG81801KESJSR ARG81801KESJSRTR-ND ARG81801KESJSR ARG81801KESJSR 1347144-ARG81801KESJSR
Product Name Automotive Wide Vin 3A, 2.4Mhz Asynchronous Buck Regulator Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
Package Type Other; 24-Pin QFN Other; 24-WFQFN Exposed Pad Other; 24-WFQFN Exposed Pad Other; Tape & Reel
Life Cycle Stage Active Active
Output Voltage 0.8000 volts 0.8000 to 28 volts 0.8000 to 28 volts
IOUT 3 amps 3 amps 3 amps 3 amps
fsw 250 to 2400 kHz 250 to 2400 kHz 250 to 2400 kHz 250 to 2400 kHz 250 to 2400 kHz
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