Allegro MicroSystems Inc. Datasheets for IC Switching Voltage Regulators
IC switching voltage regulators are integrated circuits (ICs) that store energy in an inductor, transformer, or capacitor and then use this storage device to transfer energy from the input to the output in discrete packets over a low-resistance switch.
IC Switching Voltage Regulators: Learn more
| Product Name | Notes |
|---|---|
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| Multiple Output Regulators | |
| Serving as a replacement part for the A4492 - Triple Output Step-Down Switching Regulator. The A4490 efficiently powers multiple voltage rails with its three integrated buck converters, independent soft-start, and... | |
| Single Output Regulators | |
| The A4402 simplifies power supply design for microcontrollers and DSPs by integrating a 2 MHz buck regulator and an LDO in a single package. This dual-output regulator offers adjustable output... | |
| The A4403 is a high-efficiency buck converter ideal for high-frequency, high step-down ratio applications. Valley current-mode control enables fast transient response and minimizes external component count. * Note: If you... | |
| The A4405 simplifies power management in automotive applications by integrating a 2.2 MHz buck pre-regulator, two 5V linear regulators, and a 3.3V DMOS driver. This highly integrated solution offers a... | |
| The A4407 integrates a 2.2 MHz buck pre-regulator, multiple LDO regulators, a configurable watchdog timer, and SPI control for flexible power management in automotive applications. Its wide input voltage range,... | |
| The A4409 provides a reliable power solution for automotive applications, integrating a buck or buck-boost pre-regulator, two 5V LDOs, a window watchdog timer, and power-on reset. Its wide input voltage... | |
| The A4411 offers a comprehensive power management solution for automotive applications, integrating a buck or buck-boost pre-regulator, a synchronous buck regulator, and multiple LDOs. It features a programmable watchdog timer,... | |
| The A4412 simplifies automotive power supply design with its integrated buck/buck-boost pre-regulator, synchronous buck regulator, multiple LDOs, watchdog timer, and SPI control. Offers comprehensive protection and diagnostic capabilities. * Note:... | |
| The A4413 integrates a buck/buck-boost pre-regulator, a synchronous buck, a 5V protected LDO, and a programmable watchdog timer for robust and efficient power management in automotive applications. * Note: If... | |
| The A4447 provides efficient step-down regulation for a wide input voltage range (8V-50V) and offers an adjustable output voltage (0.8V-24V). Its fixed off-time architecture simplifies compensation and ensures stable operation. | |
| The A4450 provides flexible and efficient power management for automotive applications where input voltage can be above or below the regulated output voltage. It features an integrated buck MOSFET, wide... | |
| The A4491 simplifies power supply design with three integrated buck converters, independent enable controls for flexible power sequencing, and a power-on reset with adjustable delay. * Note: If you have... | |
| 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. *... | |
| The A81411 simplifies automotive power supply design, integrating a buck-boost pre-regulator, five linear regulators (including short-to-battery protected LDOs), and SPI control for flexible configuration and diagnostics. * Note: If you... | |
| The A8450 provides a versatile power solution for automotive applications, integrating a buck converter, multiple LDO regulators (including short-to-battery protected outputs), and comprehensive protection features for robust operation. * Note:... | |
| The A8498 offers efficient step-down regulation for a wide input voltage range (8V-50V), delivering up to 3A output current. Its adjustable output voltage and integrated DMOS switch simplify design and... | |
| The A8582 provides efficient and stable step-down conversion with a wide input voltage range (4.7V-36V) and up to 2A output current. Features current-mode control, adjustable switching frequency, and comprehensive protection. | |
| The A8583 delivers efficient step-down conversion with a wide input voltage range (4.7V-36V) and up to 3.5A output current. Features current-mode control, adjustable switching frequency, and a comprehensive suite of... | |
| The A8584 provides efficient step-down conversion for a wide input voltage range (4.7V-36V), delivering up to 2.5A output current. Features current-mode control, adjustable switching frequency, and comprehensive protection. * Note:... | |
| The A8585 offers efficient and quiet power conversion for automotive applications, with selectable PWM/PFM modes for optimized light-load efficiency and a sleep mode for ultra-low standby current. * Note: If... | |
| The A8586 delivers efficient step-down conversion with a wide input voltage range (3.8V-36V), adjustable output voltage (0.8V-30V), and programmable switching frequency up to 4 MHz. Integrated MOSFET and current-mode control... | |
| The A8587 offers efficient and reliable step-down conversion with a wide input voltage range, adjustable output voltage, and programmable switching frequency up to 4 MHz. Includes enable and NPOR functions... | |
| The A8589 provides efficient and flexible power conversion for automotive applications, with low-Iq standby operation, sleep mode, external synchronization, and a power-on reset (NPOR) output. * Note: If you have... | |
| The A8590 offers robust and efficient power conversion for automotive applications, featuring low-Iq standby operation, a sleep mode, external synchronization, and enhanced idle/stop recovery for improved transient performance. * Note:... | |
| The A8591 provides efficient and quiet power conversion for automotive applications, with selectable PFM/PWM modes for optimized light-load efficiency and a sleep mode for ultra-low standby current. * Note: If... | |
| The A8600 provides a complete power solution for car audio and infotainment systems, featuring four independent switching regulators, two high-side switches, BU/ACC voltage detectors, and a mute delay. * Note:... | |
| The A8601 simplifies LCD bias voltage generation, providing five independently adjustable outputs, programmable switching frequency, and pre-programmed power-up/down sequencing. * Note: If you have issues logging into this feature you... | |
| The A8603 simplifies LCD bias generation in automotive applications, providing four independently programmable outputs, flexible switching frequency (350kHz-2.25MHz), and I2C control for simplified configuration and diagnostics. Its integrated boost converter,... | |
| The A8650 provides efficient and flexible power conversion for low-voltage applications, with adjustable switching frequency, external synchronization, and a power-OK output. Features integrated MOSFETs and comprehensive protection. * Note: If... | |
| The A8651 offers efficient and flexible power conversion for low-voltage applications, featuring dual 2A synchronous buck regulators with adjustable output voltage, synchronizable switching frequency, and independent enable/NPOR outputs. * Note:... | |
| The A8652/53 provides tight load regulation over a wiring harness without remote sense lines, simplifying USB power delivery in automotive and industrial applications. Features integrated MOSFETs, adjustable switching frequency, and... | |
| The A8654 provides efficient and reliable step-down conversion for a wide input voltage range, delivering up to 3A output current. Features integrated MOSFETs, adjustable switching frequency, and comprehensive protection. *... | |
| The A8660 offers a robust and versatile solution for synchronous buck conversion, featuring a wide input voltage range, adjustable output voltage, programmable frequency, and NPOR output. * Note: If you... | |
| The ARG81400 is designed for automotive and industrial applications, integrating a buck/buck-boost pre-regulator, synchronous buck, multiple LDOs, a watchdog timer, and SPI control for comprehensive power management. * Note: If... | |
| The ARG81402 simplifies power supply design for automotive and industrial applications, integrating a buck pre-regulator, multiple LDOs, a configurable watchdog timer, and SPI control for robust and reliable performance. *... | |
| The ARG81800 is a synchronous buck regulator ideal for "keep-alive" applications, offering ±1.5% output voltage accuracy and ultralow quiescent current (8µA) for minimal power consumption during light-load operation. Features include... | |
| The ARG82801/1 provides comprehensive power management and gate drive control for automotive applications, integrating a buck/buck-boost pre-regulator, multiple LDOs, floating gate drivers, and SPI for flexible configuration and diagnostics. The... |