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Allegro MicroSystems Inc. Buck Boost Controller W/Integrated Buck Mosfet A4450KESTR-J

Description
The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage. It includes control, diagnostics, and protection functions. An enable input to the A4450 is compatible to a high-voltage battery level, (EN). A diagnostic output from the A4450 includes a power-on reset output (NPOR) signal. Protection features include pulse-by-pulse current limit, hiccup mode short-circuit protection, LX short-circuit protection, missing freewheeling diode (buck diode at LX node in A4450) protection, and thermal shutdown. The A4450 is most suitable for applications where the input voltage can vary from less than or greater than the regulated output voltage. The A4450 is supplied in 4 × 4 mm QFN (suffix “ES”) with exposed power pad.
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Suppliers

Company
Product
Description
Supplier Links
Buck Boost Controller W/Integrated Buck Mosfet - A4450KESTR-J - Allegro MicroSystems Inc.
Manchester, NH, United States
Buck Boost Controller W/Integrated Buck Mosfet
A4450KESTR-J
Buck Boost Controller W/Integrated Buck Mosfet A4450KESTR-J
The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage. It includes control, diagnostics, and protection functions. An enable input to the A4450 is compatible to a high-voltage battery level, (EN). A diagnostic output from the A4450 includes a power-on reset output (NPOR) signal. Protection features include pulse-by-pulse current limit, hiccup mode short-circuit protection, LX short-circuit protection, missing freewheeling diode (buck diode at LX node in A4450) protection, and thermal shutdown. The A4450 is most suitable for applications where the input voltage can vary from less than or greater than the regulated output voltage. The A4450 is supplied in 4 × 4 mm QFN (suffix “ES”) with exposed power pad.

The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage. It includes control, diagnostics, and protection functions.

An enable input to the A4450 is compatible to a high-voltage battery level, (EN).

A diagnostic output from the A4450 includes a power-on reset output (NPOR) signal.

Protection features include pulse-by-pulse current limit, hiccup mode short-circuit protection, LX short-circuit protection, missing freewheeling diode (buck diode at LX node in A4450) protection, and thermal shutdown.

The A4450 is most suitable for applications where the input voltage can vary from less than or greater than the regulated output voltage.

The A4450 is supplied in 4 × 4 mm QFN (suffix “ES”) with exposed power pad.

Supplier's Site Datasheet
DC DC Switching Controllers - A4450KESTR-J - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
DC DC Switching Controllers
A4450KESTR-J
DC DC Switching Controllers A4450KESTR-J
Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Supplier's Site Datasheet
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Controllers
A4450KESTR-J
PMIC - Voltage Regulators - DC DC Switching Controllers A4450KESTR-J
IC REG CTRLR BUCK-BOOST 20QFN

IC REG CTRLR BUCK-BOOST 20QFN

Supplier's Site Datasheet
DC DC Switching Controllers - 620-A4450KESTR-JTR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
620-A4450KESTR-JTR-ND
DC DC Switching Controllers 620-A4450KESTR-JTR-ND
Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Supplier's Site Datasheet
DC DC Switching Controllers - 620-A4450KESTR-JCT-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
620-A4450KESTR-JCT-ND
DC DC Switching Controllers 620-A4450KESTR-JCT-ND
Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Supplier's Site Datasheet
DC DC Switching Controllers - 620-A4450KESTR-JDKR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
620-A4450KESTR-JDKR-ND
DC DC Switching Controllers 620-A4450KESTR-JDKR-ND
Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Buck-Boost Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4)

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers - 1353863-A4450KESTR-J - Win Source Electronics
Yishun, Singapore
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
1353863-A4450KESTR-J
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers 1353863-A4450KESTR-J
Win Source Part Number: 1353863-A4450KESTR-J Category: Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers Temperature Range - Operating: -40°C ~ 150°C (TJ) Fake Threat In the Open Market: 50 pct. MSL Level: 1 (Unlimited) Mfr: Allegro MicroSystems Series: Automotive, AEC-Q100 Package: Tape & Reel Product Status: Active Package / Case: 20-WFQFN Exposed Pad Supplier Device Package: 20-QFN (4x4) Base Product Number: A4450 Mounting Type: Surface Mount HTSUS: 8542.39.0001 REACH Status: REACH Unaffected ECCN: EAR99 Function: Step-Up/Step-Down Output Type: Transistor Driver Output Configuration: Positive Control Features: Enable, Frequency Control, Soft Start Voltage - Supply (Vcc/Vdd): 3V ~ 36V Topology: Buck-Boost Number of Outputs: 1 Frequency - Switching: 250kHz ~ 2.2MHz Synchronous Rectifier: No Output Phases: 1 Clock Sync: Yes

Win Source Part Number: 1353863-A4450KESTR-J
Category: Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
Temperature Range - Operating: -40°C ~ 150°C (TJ)
Fake Threat In the Open Market: 50 pct.
MSL Level: 1 (Unlimited)
Mfr: Allegro MicroSystems
Series: Automotive, AEC-Q100
Package: Tape & Reel
Product Status: Active
Package / Case: 20-WFQFN Exposed Pad
Supplier Device Package: 20-QFN (4x4)
Base Product Number: A4450
Mounting Type: Surface Mount
HTSUS: 8542.39.0001
REACH Status: REACH Unaffected
ECCN: EAR99
Function: Step-Up/Step-Down
Output Type: Transistor Driver
Output Configuration: Positive
Control Features: Enable, Frequency Control, Soft Start
Voltage - Supply (Vcc/Vdd): 3V ~ 36V
Topology: Buck-Boost
Number of Outputs: 1
Frequency - Switching: 250kHz ~ 2.2MHz
Synchronous Rectifier: No
Output Phases: 1
Clock Sync: Yes

Supplier's Site Datasheet

Technical Specifications

  Allegro MicroSystems Inc. Quarktwin Technology Ltd. Lingto Electronic Limited DigiKey Win Source Electronics
Product Category IC Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number A4450KESTR-J A4450KESTR-J A4450KESTR-J 620-A4450KESTR-JTR-ND 1353863-A4450KESTR-J
Product Name Buck Boost Controller W/Integrated Buck Mosfet DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers DC DC Switching Controllers Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
Package Type Other; 20-Pin QFN Other; 20-WFQFN Exposed Pad Other; 20-WFQFN Exposed Pad Other; Tape & Reel
Output Voltage Type Fixed; Transistor Driver Transistor Driver
Life Cycle Stage Active
VIN 3 to 36 volts
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