The A81407 is a multi-output regulator for automotive and industrial applications, integrating a 2.2 MHz buck or buck-boost pre-regulator, four LDOs with foldback short-circuit protection, four floating gate drivers with charge pumps, watchdog timers, and an SPI interface. It operates from a 3.8 V to 36 V input with a maximum 40 V rating, and is housed in a 38-lead eTSSOP package with an exposed power pad. The device is AEC-Q100 qualified and ASIL D compliant when used as specified. It supports a junction temperature range of -40°C to 150°C and has a thermal resistance of 30 °C/W. The A81407KLVATR-1 variant provides a 5.0 V output for the VUC regulator.
The A81407 integrates a buck/buck-boost pre-regulator, multiple LDO regulators, gate drivers, and SPI control for comprehensive power management and control of external switched loads in automotive and industrial applications.
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PMIC FOR SAFETY-RELATED SYSTEMS
Switching Regulator, Product overview: A81407KLVATR-1 from Allegro MicroSystems is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, Voltage Regulator IC, Linear & Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 776-A81407KLVATR-1 can be used for catalog matching and distributor lookup.
PMIC FOR SAFETY-RELATED SYSTEMS
PMIC FOR SAFETY-RELATED SYSTEMS
| Allegro MicroSystems Inc. | DigiKey | ERSAELECTRONICS PTE. LTD. | ODG (Origin Data Global) | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|
| Product Category | IC Voltage Regulators | IC Linear Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | A81407KLVATR-1 | 620-A81407KLVATR-1-ND | 776-A81407KLVATR-1 | A81407KLVATR-1 | A81407KLVATR-1 |
| Product Name | Pmic For Safety-Related Systems With Buc | Voltage Regulators - Linear + Switching | Voltage Regulator IC | Voltage Regulators - Linear + Switching | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - Linear + Switching |
| 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 | ||
| Regulator Type | Standard; Low Dropout | ||||
| Output Voltage | 5.35 volts | ||||
| IOUT | 0.3750 amps | ||||
| Operating Temperature | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) |
