A4491EESTR-T

Mfr. #:: A4491EESTR-T
Manufacturer:: Rochester Electronics, LLC
Description:: IC REG BUCK ADJ TRPL 20QFN
Lifecycle:: New from this manufacturer.
Datasheet:: A4491EESTR-T Datasheet
Delivery:: DHL FedEx Ups TNT EMS
Payment:: T/T Paypal Visa MoneyGram Western Union
HTML Datasheet:: A4491EESTR-T Datasheet A4491EESTR-T Datasheet (P4-P6)A4491EESTR-T Datasheet (P7-P9)A4491EESTR-T Datasheet (P10-P12)A4491EESTR-T Datasheet (P13-P15)A4491EESTR-T Datasheet (P16)
ECAD Model:

Product Attribute
Attribute Value

Manufacturer: Allegro MicroSystems, LLC

Product Category: PMIC - Voltage Regulators - DC DC Switching Regulators

Series: -

Packaging: Digi-ReelR Alternate Packaging

Package-Case: 20-WFQFN Exposed Pad

Operating-Temperature: -40°C ~ 85°C (TA)

Mounting-Type: Surface Mount

Output-Type: Adjustable

Function: Step-Down

Supplier-Device-Package: 20-QFN (4x4)

Number-of-Outputs: 3

Topology: Buck

Frequency-Switching: 550kHz

Current-Output: -

Output-Configuration: Positive

Voltage-Output-Min-Fixed: 0.8V

Voltage-Output-Max: 20.7V

Synchronous-Rectifier: No

Voltage-Input-Min: 4.5V

Voltage-Input-Max: 23V

Tags: A4491EES, A4491E, A4491, A449, A44

Service Guarantees

We guarantee 100% customer satisfaction.

Quality Guarantees

We provide 90-360 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
Our experienced sales team and tech support team back our services to satisfy all our customers.

we buy and manage excess electronic components, including excess inventory identified for disposal.
Email us if you have excess stock to sell.

Email: info@omo-ic.com

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

A4491EESTR-T Description

***egro MicroSystems LLC SCT: Triple Output Step-Down Switching Regulator, QFN-20, RoHS

*** Source Electronics: IC REG BUCK ADJ TRPL 20QFN / Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R

***ponent Stockers USA: SWITCHING REGULATOR 630 kHz SWITCHING FREQ-MAX QCC20

***as Instruments: 4.5V to 18V Input, 2A Synchronous Step-Down Converter with Eco-Mode 16-VQFN -40 to 85

***ical: Conv DC-DC 2V to 18V Synchronous Step Down Single-Out 0.76V to 5.5V 2A 16-Pin VQFN EP T/R

*** Stop Electro: Dual Switching Controller, Voltage-mode, 2A, 700kHz Switching Freq-Max, PQCC16

***Yang: Switching Voltage Regulators 4.5-18V Inp,2A Synch Step Down Converter

***ure Electronics: NCP5269 Series 28 V 600 kHz Low Voltage Synchronous Buck Controller - QFN-20

***(Formerly Allied Electronics): NCP5269MNTWG Buck Controller 2mA Selectable; 0.2 - 3.5 V; 20-Pin QFN

***Yang: DC DC Cntrlr Single-OUT Sync Buck 3.3V to 28V 20-Pin QFN T/R - Tape and Reel

***emi: Synchronous Buck Regulator, Integrated, 2.0 A, 1.0 MHz, with Light Load Efficiency

***(Formerly Allied Electronics): NCP5252MNTXG Step-Down Switching Regulator 2A Adjustable; 0.6 to 5 V; 16-Pin QFN

***ical: Conv DC-DC 4.5V to 13.2V Synchronous Step Down Single-Out 0.6V to 5V 2A 16-Pin QFN EP T/R

***ure Electronics: NCP5252 Series 13.2V 2 A 1 MHz Adj. Integrated Synchronous Buck Regulator-QFN-16

***nell: DC/DC CONV, SYNC BUCK, 1MHZ, QFN-16; Topology: Synchronous Buck (Step Down); Input Voltage Min: 4.5V; Input Voltage Max: 13.2V; No. of Outputs: 1Outputs; DC / DC Converter IC Case: QFN; No. of Pins: 16Pins; Output Current: 2A; Output Voltage Min: 600mV; Output Voltage Max: 5V; Switching Frequency: 1MHz; Operating Temperature Max: 85°C; Product Range: -; Automotive Qualification Standard: -; RoHS Phthalates Compliant: Yes; MSL: MSL 1 - Unlimited; SVHC: No SVHC (27-Jun-2018)

***th Star Micro: NCP5252 is a synchronous buck regulator with integrated high-side and low-side MOSFETs. The device is capable of operating from a +5V or +12V supply and can output a voltage down to 0.6V. The switching frequency is adjustable from 333 kHz up to 1.0 MHz and has the ability to provide skip mode for light load efficiency. NCP5252 protection

***p One Stop Global: Conv DC-DC 4V to 17V Step Down Single-Out 0.9V to 5V 1A 16-Pin VQFN EP T/R

***as Instruments: 4-17V 1A Step-Down Converter with DCS-Control 16-VQFN -40 to 85

*** Stop Electro: Switching Regulator, Current/voltage-mode, 1A, 2500kHz Switching Freq-Max, PQCC16

*** Electronics: Switching Voltage Regulators 4-17V 1A Step-Down Converter

***ical: Conv DC-DC 3V to 17V Synchronous Step Down Single-Out 0.9V to 5V 3A 16-Pin VQFN EP T/R

***as Instruments: 3-17V 3A Step-Down Converter in 3x3 QFN Package 16-VQFN -40 to 85

*** Stop Electro: Switching Regulator, Voltage-mode, 3A, 2500kHz Switching Freq-Max, PQCC16

*** Electronics: Switching Voltage Regulators 4-17V 3A Step-Down Converter

***nell: DC/DC CONV, SYNC BUCK, 2.5MHZ, QFN-16; Topologie: Buck Synchrone (Abaisseur); Tension, entrée min.: 3V; Tension, entrée max..: 17V; Nombre de canaux de sortie: 1Sortie(s); Boîtier de convertisseur DC / DC: QFN; Nombre de broc

***ment14 APAC: DC/DC CONV, SYNC BUCK, 2.5MHZ, QFN-16; Topology:Synchronous Buck (Step Down); Input Voltage Min:3V; Input Voltage Max:17V; No. of Outputs:1Outputs; DC / DC Converter IC Case:QFN; No. of Pins:16Pins; Output Current:3A; Output Voltage Min:900mV; Output Voltage Max:5V; Switching Frequency:2.5MHz; Operating Temperature Max:85°C; Product Range:-; Automotive Qualification Standard:-; RoHS Phthalates Compliant:Yes; MSL:MSL 2 - 1 year; SVHC:No SVHC (27-Jun-2018)

***Yang: DC DC Cntrlr Single-OUT Sync Buck 1.5V to 19V Input 16-Pin QFN EP T/R - Tape and Reel

***emi: Low Voltage Synchronous Buck Controller

***r Electronics: Switching Controller, Current-mode, 1000kHz Switching Freq-Max

***ment14 APAC: DC/DC CTRL, SYNC BUCK, 1MHZ, QFN-16

***i-Key Marketplace: SWITCHING CONTROLLER, CURRENT-MO

***S: French Electronic Distributor since 1988

***ark: Dc/dc Ctrl, Sync Buck, 1Mhz, Qfn-16; Supply Voltage Min:4.5V; Supply Voltage Max:13.2V; No. Of Outputs:1 Output; Duty Cycle (%):95%; Controller Ic Case Style:qfn; No. Of Pins:16Pins; Switching Frequency:1Mhz; Topology:synchronous Rohs Compliant: Yes

Market price

Part #	Mfg.	Description	Stock	Price
A4491EESTR-T DISTI # V79:2366_17788111	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	51590	1500:$0.7350 500:$0.8883 100:$1.0496 10:$1.2539 1:$1.3726
A4491EESTR-T DISTI # V72:2272_06610915	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	5827	6000:$0.7064 3000:$0.7135 1000:$0.8610 500:$0.8701 250:$1.0270 100:$1.0385 25:$1.2398 10:$1.2547 1:$1.3737
A4491EESTR-T DISTI # 620-1516-1-ND	Allegro MicroSystems LLC	IC REG BUCK ADJ TRPL 20QFN RoHS: Compliant Min Qty: 1 Container: Cut Tape (CT)	11084In Stock	500:$1.0031 100:$1.2209 10:$1.5190 1:$1.6900
A4491EESTR-T DISTI # 620-1516-6-ND	Allegro MicroSystems LLC	IC REG BUCK ADJ TRPL 20QFN RoHS: Compliant Min Qty: 1 Container: Digi-Reel®	11084In Stock	500:$1.0031 100:$1.2209 10:$1.5190 1:$1.6900
A4491EESTR-T DISTI # 620-1516-2-ND	Allegro MicroSystems LLC	IC REG BUCK ADJ TRPL 20QFN RoHS: Compliant Min Qty: 1500 Container: Tape & Reel (TR)	10500In Stock	1500:$0.8069
A4491EESTR-T DISTI # 26115925	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	51590	1500:$0.7350 500:$0.8883 100:$1.0496 10:$1.2539
A4491EESTR-T DISTI # 25755198	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	5827	3000:$0.7135 1000:$0.8610 500:$0.8701 250:$1.0270 100:$1.0385 25:$1.2398 10:$1.2547
A4491EESTR-T DISTI # A4491EESTR-T	Allegro MicroSystems LLC	Conv DC-DC 3-OUT Step Down 4.5V to 23V 20-Pin QFN T/R (Alt: A4491EESTR-T) RoHS: Compliant Min Qty: 1 Container: Tape and Reel	Europe - 0	1:€1.1989 10:€1.0659 25:€0.9589 50:€0.8719 100:€0.7989 500:€0.7379 1000:€0.6849
A4491EESTR-T	Allegro MicroSystems LLC	Switching Regulator, Current-mode, 1.5A, 630kHz Switching Freq-Max RoHS: Compliant	39000	1000:$0.7800 500:$0.8200 100:$0.8500 25:$0.8900 1:$0.9600
A4491EESTR-T DISTI # C1S110900032424	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	6077	250:$1.0270 100:$1.0385 25:$1.2398 10:$1.2547
A4491EESTR-T DISTI # C1S110900025743	Allegro MicroSystems LLC	Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A Automotive 20-Pin QFN EP T/R RoHS: Compliant	51590	1500:$0.7350 500:$0.8883 100:$1.0496 10:$1.2539

Image	Part #	Description
	Mfr.#: A4491EE OMO.#: OMO-A4491EE-1190	New and Original
	Mfr.#: A4491EESTR OMO.#: OMO-A4491EESTR-1190	New and Original
	Mfr.#: A4491EESTR-T OMO.#: OMO-A4491EESTR-T-ALLEGRO-MICROSYSTEMS	IC REG BUCK ADJ TRPL 20QFN
	Mfr.#: A4491EESTR-T- OMO.#: OMO-A4491EESTR-T--1190	New and Original
	Mfr.#: A4491EESTRT OMO.#: OMO-A4491EESTRT-1190	New and Original

A4491EESTR-T

Step1:Vacuum Packaging with PL

Step2:Anti-Static Bag

Step3:Packaging Boxes

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes