Allegro MicroSystems Inc. Automotive Buck-Boost Pmic W/2 Ldo Outputs A4409KLPTR-T

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 range and programmable features offer design flexibility for underhood systems.

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Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 1134690-A4409KLPTR-T
Series: Automotive, AEC-Q100
Packaging: Reel - TR
Operating Temperature Range: -40°C ~ 135°C
Package: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting: SMD
Operating Supply Voltage: 3 V ~ 36 V
Function: Automotive
Topology: Step-Down (Buck) (1) or Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (2)
Frequency - Switching: 400kHz ~ 2.4MHz
Number of Outputs: 3
Voltage/Current - Output 1: 0.8 V ~ 3.3 V, 800mA
Voltage/Current - Output 2: 6V/6.6V, 1A
Voltage/Current - Output 3: 5V, 150mA
w/LED Driver: No
w/Supervisor: No
w/Sequencer: Yes
Family Name: A4409KLPTR-T
Categories: Integrated Circuits (ICs)
Manufacturer Homepage: www.allegromicro.com
Manufacturer Package: 20-TSSOP-EP
Introduction Date: November 17, 2015
Country of Origin: Thailand
Estimated EOL Date: 2024
Popularity: Medium
Fake Threat In the Open Market: 52 pct.
Supply and Demand Status: Limited

IC REG TRPL BUCK/BST/LNR 20TSSOP

PMIC - Voltage Regulators - Linear + Switching 3 Output Step-Down (Buck) (1) or Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (2) 400kHz ~ 2.4MHz 20-TSSOP-EP

Power Supply Management Circuit, Adjustable, 3 Channel, PDSO20, ETSSOP-20 Product overview: A4409KLPTR-T 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-A4409KLPTR-T can be used for catalog matching and distributor lookup.