Allegro MicroSystems Inc. Automotive Buck-Boost PMIC W/5 Ldo Outputs A4412KLVTR-T

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Automotive Buck-Boost PMIC W/5 Ldo Outputs - A4412KLVTR-T - Allegro MicroSystems Inc.
Manchester, NH, United States
Automotive Buck-Boost PMIC W/5 Ldo Outputs
A4412KLVTR-T
Automotive Buck-Boost PMIC W/5 Ldo Outputs A4412KLVTR-T
The A4412 is a power management IC that uses a buck or buck/boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete with control, diagnostics and protections. The output of the pre-regulator supplies a 5 V / 100 mA protected linear regulator, a 3.3 V / 90 mA linear regulator, a 5 V / 200 mA linear regulator, a 5 V / 55 mA linear regulator, a 5 V / 30 mA linear regulator and an adjustable 400 mA synchronous buck regulator. Designed to supply CAN transceiver, sensor, and microprocessor power supplies in high-temperature environments, the A4412 is ideal for under-hood applications. Enable inputs to the A4412 include a logic level (ENB) and a high-voltage (ENBAT). The A4412 also provides flexibility with disable function of the individual 5 V rails through a serial peripheral interface (SPI). Diagnostic outputs from the A4412 include a power-on-reset output (NPOR), an ENBAT status output, and a fault flag output to alert the microprocessor that a fault has occurred. The microprocessor can read fault status through SPI. Dual bandgaps, one for regulation and one for fault checking, improve safety coverage and fault detection of the A4412. The A4412 contains a Window Watchdog timer with a detect period of 2 ms. The watchdog timer is activated once it receives valid 2 ms pulses from the processor. The watchdog can be put into flash mode or be reset via secure SPI commands. Protection features include undervoltage and overvoltage on all output rails. In case of a shorted output, all linear regulators feature foldback overcurrent protection. In addition, the V5P output is protected from a short-to-battery event. Both switching regulators include pulse-by-pulse current limit, hiccup mode short-circuit protection, LX short-circuit protection, missing asynchronous diode protection (VREG only) and thermal shutdown. The A4412 is supplied in a low-profile (1.2 mm maximum height) 38-lead eTSSOP package (suffix “LV”) with exposed power pad.

The A4412 is a power management IC that uses a buck or buck/boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete with control, diagnostics and protections. The output of the pre-regulator supplies a 5 V / 100 mA protected linear regulator, a 3.3 V / 90 mA linear regulator, a 5 V / 200 mA linear regulator, a 5 V / 55 mA linear regulator, a 5 V / 30 mA linear regulator and an adjustable 400 mA synchronous buck regulator. Designed to supply CAN transceiver, sensor, and microprocessor power supplies in high-temperature environments, the A4412 is ideal for under-hood applications.

Enable inputs to the A4412 include a logic level (ENB) and a high-voltage (ENBAT). The A4412 also provides flexibility with disable function of the individual 5 V rails through a serial peripheral interface (SPI).

Diagnostic outputs from the A4412 include a power-on-reset output (NPOR), an ENBAT status output, and a fault flag output to alert the microprocessor that a fault has occurred. The microprocessor can read fault status through SPI. Dual bandgaps, one for regulation and one for fault checking, improve safety coverage and fault detection of the A4412.

The A4412 contains a Window Watchdog timer with a detect period of 2 ms. The watchdog timer is activated once it receives valid 2 ms pulses from the processor. The watchdog can be put into flash mode or be reset via secure SPI commands.

Protection features include undervoltage and overvoltage on all output rails. In case of a shorted output, all linear regulators feature foldback overcurrent protection. In addition, the V5P output is protected from a short-to-battery event. Both switching regulators include pulse-by-pulse current limit, hiccup mode short-circuit protection, LX short-circuit protection, missing asynchronous diode protection (VREG only) and thermal shutdown.

The A4412 is supplied in a low-profile (1.2 mm maximum height) 38-lead eTSSOP package (suffix “LV”) with exposed power pad.

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - A4412KLVTR-T - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
A4412KLVTR-T
PMIC - Voltage Regulators - DC DC Switching Regulators A4412KLVTR-T
IC REG BCK BST ADJ 400MA 38TSSOP

IC REG BCK BST ADJ 400MA 38TSSOP

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - A4412KLVTR-T-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
A4412KLVTR-T-ND
Voltage Regulators - DC DC Switching Regulators A4412KLVTR-T-ND
Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad

Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - A4412KLVTR-T - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
A4412KLVTR-T
Voltage Regulators - DC DC Switching Regulators A4412KLVTR-T
Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad

Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - A4412KLVTR-T - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
A4412KLVTR-T
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators A4412KLVTR-T
IC REG BCK BST ADJ 400MA 38TSSOP

IC REG BCK BST ADJ 400MA 38TSSOP

Supplier's Site
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4412KLVTR-T - 858951-A4412KLVTR-T - Win Source Electronics
Yishun, Singapore
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4412KLVTR-T
858951-A4412KLVTR-T
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4412KLVTR-T 858951-A4412KLVTR-T
Manufacturer: Allegro MicroSystems, LLC Win Source Part Number: 858951-A4412KLVTR-T Series: Automotive, AEC-Q100 Operating Temperature Range: -40°C ~ 150°C Features: Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Package: 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Package: Reel - TR Mounting: Surface Mount Family Name: A4412 Categories: Integrated Circuits (ICs) Case / Package: 38-eTSSOP ECCN: EAR99 Popularity: Medium Fake Threat In the Open Market: 61 pct. Supply and Demand Status: Limited Quantity per package: 8000 MSL Level: 2 (1 Year) Estimated Pruduction Lead Time: 7 Weeks REACH Status: REACH Unaffected HTSUS: 8542.39.0001

Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 858951-A4412KLVTR-T
Series: Automotive, AEC-Q100
Operating Temperature Range: -40°C ~ 150°C
Features: Buck, Buck-Boost Switching Regulator IC Positive Adjustable 1.3V 1 Output 400mA 38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Package: 38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Package: Reel - TR
Mounting: Surface Mount
Family Name: A4412
Categories: Integrated Circuits (ICs)
Case / Package: 38-eTSSOP
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 61 pct.
Supply and Demand Status: Limited
Quantity per package: 8000
MSL Level: 2 (1 Year)
Estimated Pruduction Lead Time: 7 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001

Supplier's Site

Technical Specifications

  Allegro MicroSystems Inc. Lingto Electronic Limited DigiKey Quarktwin Technology Ltd. Shenzhen Shengyu Electronics Technology Limited Win Source Electronics
Product Category IC Linear Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number A4412KLVTR-T A4412KLVTR-T A4412KLVTR-T-ND A4412KLVTR-T A4412KLVTR-T 858951-A4412KLVTR-T
Product Name Automotive Buck-Boost PMIC W/5 Ldo Outputs PMIC - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - A4412KLVTR-T
Package Type Other; 38-Pin eTSSOP Other; 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Other; 38-TFSOP (0.173\", 4.40mm Width) Exposed Pad SSOP; Other; 38-eTSSOP
IOUT 0.4000 amps 0.4000 amps 0.4000 amps 0.4000 amps
fsw 2200 kHz 2200 kHz 2200 kHz 2200 kHz
Configuration / Function Buck; Buck-Boost
Output Voltage Type Adjustable / Variable Adjustable / Variable; Adjustable
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