LT3991IDD#PBF

Part No :: LT3991IDD#PBF

Manufacturer: Linear Technology (Analog Devices, Inc.)

VIGOR # :: 3900095

Description: IC REG BUCK ADJ 1.2A 10DFN

Catalog: PMIC - Voltage Regulators - DC DC Switching Regulators

DataSheet: LT3991IDD#PBF PDF

Country of origin: -

Date code: -

LT3991IDD#PBF Specifications

Type	Description
Series:	-
Package:	Tube
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.3V
Voltage - Input (Max):	55V
Voltage - Output (Min/Fixed):	1.19V
Voltage - Output (Max):	30V
Current - Output:	1.2A
Frequency - Switching:	200kHz ~ 2MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x3)

Alternative Products

Part Number	Manufacturer & Description	Compare
LT3971EDD#TRPBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK ADJ 1.2A 10DFN	LT3991IDD#PBF vs LT3971EDD#TRPBF
LT8619IDD#PBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK 0.8V 1.2A 10DFN	LT3991IDD#PBF vs LT8619IDD#PBF
LT3971IDD#TRPBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK ADJ 1.2A 10DFN	LT3991IDD#PBF vs LT3971IDD#TRPBF
LT3971IDD-3.3#PBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK 3.3V 1.2A 10DFN	LT3991IDD#PBF vs LT3971IDD-3.3#PBF
LT3971EDD#PBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK ADJ 1.2A 10DFN	LT3991IDD#PBF vs LT3971EDD#PBF
LT3686HDD#PBF Match 100%	Linear Technology (Analog Devices, Inc.) IC REG BUCK ADJ 1.2A 10DFN	LT3991IDD#PBF vs LT3686HDD#PBF

Please confirm the specifications of the products when ordering.
MOQ means the minimum order quantity required to purchase each parts.
If you have special order instructions,please note it on the ordering pages.
The Pre-Shipment Inspection (PSI) will be applied.
You can email us to change the order details before shipment.
Orders cannot be canceled after shipping the packages.

TT in advance (bank transfer), Credit Card, PayPal can be chosen.
Cash transfer only. (Transfer with checks and bills are not accepted.)
Customer is responsible for paying all possible charges,including sales tax, VAT and customs charges,etc.
If you need the detailed invoice or tax ID,please email us.

FedEx, DHL, and UPS can be selected.
You can select whether to charge shipping fee by your shipping account or to charge by our side.
Please confirm with the logistics company in advance if you are in a remote area. (It may cost extra fees (35-50 USD) for delivery at those areas.)
The shopping cart will automatically calculate the shipping cost.
Delivery time: At the same day (Order deadline is 2pm, HK Time).
Delivery date: usually 2 to 7 working days.
It is unable to appoint a date of delivery.
Tracking number will be sent once your order has been shipped. (It may take up to 24 hours before carriers display the info.)

In Stock: 303

Shipped from

HK warehouse

Expected Shipping Date

Aug 21 - Aug 25 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$7.8700~~	~~$7.87~~
25	~~$5.2231~~	~~$130.58~~
100	~~$4.3186~~	~~$431.86~~
250	~~$4.1027~~	~~$1 025.67~~
500	~~$4.0101~~	~~$2 005.07~~
2500	~~$3.8559~~	~~$9 639.78~~

Current price of LT3991IDD#PBF is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

Hot Products

LM3671QTL-1.8/NOPB

IC REG BUCK 1.8V 600MA 5DSBGA

XC9281B30E1R-G

HISAT-COT CONTROL EXTREMELY SMAL

LTC3631EDD#PBF

IC REG BUCK ADJ 100MA 8DFN

LT3991IDD#PBF

LT3991IDD#PBF

3900095

Pricing(USD)