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 wide input voltage range, short-to-battery protection, and robust fault protection for reliable performance in underhood environments.
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IC REG QUAD BUCK/LINEAR 20TSSOP
PMIC - Voltage Regulators - Linear + Switching 4 Output Step-Down (Buck) (1), Linear (LDO) (3) 2.2MHz 20-TSSOP-EP
IC REG QUAD BUCK/LINEAR 20TSSOP
Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 168634-A4405KLPTR-T
Category: Integrated Circuits(ICs)
Family: PMIC - Voltage Regulators - Linear+Switching
Family Name: A4405
Introduction Date: September 27, 2012
Country of Origin: Philippines
Estimated EOL Date: 2030
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 36 pct.
Supply and Demand Status: Balance
Switching Regulator, PDSO20, Product overview: A4405KLPTR-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-A4405KLPTR-T can be used for catalog matching and distributor lookup.
IC REG QUAD BUCK/LINEAR 20TSSOP
Switching Regulator, PDSO20
PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) (1), Linear (LDO) (3) 2.2MHz 20-TSSOP-EP
IC REG QUAD BUCK/LINEAR 20TSSOP
IC REG QUAD BUCK/LINEAR 20TSSOP
| Allegro MicroSystems Inc. | DigiKey | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | ODG (Origin Data Global) | Rochester Electronics | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Linear Voltage Regulators | IC Switching Voltage Regulators | IC Linear Voltage Regulators |
| Product Number | A4405KLPTR-T | 620-A4405KLPTR-TDKR-ND | 168634-A4405KLPTR-T | 776-A4405KLPTR-T | A4405KLPTR-T | A4405KLPTR-T | A4405KLPTR-T | A4405KLPTR-T | A4405KLPTR-T |
| Product Name | Automotive Triple Output Regulator | Voltage Regulators - Linear + Switching | Integrated Circuits(ICs) | Voltage Regulator IC | Voltage Regulators - Linear + Switching | Voltage Regulators - Linear + Switching | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - Linear + Switching | PMIC - Voltage Regulators - Linear + Switching | |
| Package Type | Other; 20-Pin TSSOP | Other; "20-TSSOP (0.173"", 4.40mm Width) Exposed Pad" | Other; TSSOP | Other; 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | SSOP; Other; TSSOP20 | SSOP; Other; 20-TSSOP (0.173\", 4.40mm Width) Exposed Pad | SSOP | ||
| Regulator Type | Standard; Low Dropout | ||||||||
| Output Voltage | 5.45 volts | ||||||||
| IOUT | 2.5 amps | ||||||||
| Operating Temperature | -40 to 150 C (-40 to 302 F) | -40 C (-40 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) |
