Name: L5991D
Brand: STMicroelectronics
SKU: L5991D
Price: 3.307 USD
Availability: InStock
Rating: 5 (94 reviews)

L5991D

For Reference Only

Part Number	L5991D
Manufacturer	STMicroelectronics
Description	IC REG CTRLR BST FLYBK ISO SO16
Datasheet	L5991D Datasheet L5991D Specifications
Package	16-SOIC (0.154", 3.90mm Width)
ECAD
In Stock	154,020 piece(s)
Unit Price	$ 3.3070 *
Lead Time	Can Ship Immediately
Estimated Delivery Time	Apr 28 - May 3 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # L5991D (PMIC - AC DC Converters, Offline Switchers) is manufactured by STMicroelectronics and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For L5991D specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add L5991D with quantity into BOM. Heisener.com does NOT require any registration to request a quote of L5991D.

L5991D Specifications

Manufacturer	STMicroelectronics
Category	Integrated Circuits (ICs) - PMIC - AC DC Converters, Offline Switchers
Package	16-SOIC (0.154", 3.90mm Width)
ECAD
Series	-
Output Isolation	Isolated
Internal Switch(s)	No
Voltage - Breakdown	-
Topology	Boost, Flyback
Voltage - Start Up	15V
Voltage - Supply (Vcc/Vdd)	10 V ~ 20 V
Duty Cycle	93%
Frequency - Switching	Up to 1MHz
Power (Watts)	-
Fault Protection	Current Limiting, Over Voltage
Control Features	Frequency Control, Soft Start, Sync
Operating Temperature	-40°C ~ 150°C (TJ)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package	16-SO
Mounting Type	Surface Mount

L5991D Datasheet

L5991D Reviews

Reyn*****rmar

March 17, 2023

★ ★ ★ ★ ★

The products are good, the amount is correct. The values are correct.

Ami*****ayes

March 15, 2023

★ ★ ★ ★ ★

Purchasing from Heisener means the real part is obtained no worried for product quality.

Syla*****avez

March 12, 2023

★ ★ ★ ★ ★

These are great for projects with the kids or doing any type of DIY projects. The case is nice to keep everything separated. Very nice.

Tess*****rrison

March 11, 2023

★ ★ ★ ★ ★

What can I say, great value for the money. I only needed 2 but now I have some spares for future projects. They got the job done, nothing more I can say.

Yar***** Dora

March 6, 2023

★ ★ ★ ★ ★

Fast shipping, items are exactly as promised. Reliable company to work with.

Alon*****Molina

February 25, 2023

★ ★ ★ ★ ★

A convenient and small package. I have used 2 of the 10 units so far and they work fine.

Jaxxo*****tiago

February 22, 2023

★ ★ ★ ★ ★

I received technical certification with a good staff. They have good fair prices on brand names.

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

L5991D Packaging

L5991D FAQ

1. How to order L5991D on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that L5991D is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the L5991D. All suppliers must pass our qualification reviews before they can publish their products including L5991D on Heisener; we pay more attention to the channels and quality of L5991D products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the L5991D price and inventory displayed accurate?

The price and inventory of L5991D fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of L5991D?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the L5991D we delivered, we will accept the replacement or return of the L5991D only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of L5991D.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as L5991D pin diagram, L5991D datasheet?

If you need any after-sales service, please do not hesitate to contact us.

L5991D Related Products

ABM11W-38.8800MHZ-7-J1Z-T3	Abracon LLC, CRYSTAL 38.880MHZ 7PF SMT, 4-SMD, No Lead, -	View
BCR 119 E6433	Infineon Technologies, TRANS PREBIAS NPN 200MW SOT23-3, TO-236-3, SC-59, SOT-23-3, -	View
LM9061M	Texas Instruments, IC DRIVER MOSF W/LOSS PROT 8SOIC, 8-SOIC (0.154", 3.90mm Width), -	View
23LC512T-E/ST	Microchip Technology, IC SRAM 512KBIT 20MHZ 8TSSOP, 8-TSSOP (0.173", 4.40mm Width), -	View
LC823432TAK-2H	ON Semiconductor, IC AUDIO LSI RECORDER 128TQFP, -, -	View
RT0603DRE0711K5L	Yageo, RES SMD 11.5KOHM 0.5% 1/10W 0603, 0603 (1608 Metric), -	View
ERJ-8ENF3003V	Panasonic Electronic Components, RES SMD 300K OHM 1% 1/4W 1206, 1206 (3216 Metric), -	View
FOD817B300W	Fairchild/ON Semiconductor, OPTOISOLATOR 5KV TRANSISTOR 4DIP, 4-DIP (0.400", 10.16mm), -	View
510-83-179-15-041101	Preci-Dip, CONN SOCKET PGA 179POS GOLD, -, -	View
EJH-125-01-F-D-RA-39	Samtec Inc., .100 X .100 EJECTOR HEADER ASSEM, -, -	View
AYM10DRSN-S664	Sullins Connector Solutions, CONN EDGE DUAL FMALE 20POS 0.156, -, -	View
VE-JTT-CX	Vicor Corporation, CONVERTER MOD DC/DC 6.5V 75W, Half Brick, -	View

L5991D Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 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.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

L5991D

D# V79:2366_25222366

STMicroelectronics

Current Mode PWM Controller 1.5A 1000kHz 16-Pin SO Tube

RoHS: Compliant

L5991D013TR

D# V72:2272_17638490

STMicroelectronics

Current Mode PWM Controller 1.5A 1000kHz 16-Pin SO T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

L5991D013TR

D# L5991D013TR

STMicroelectronics

Current Mode PWM Controller 1.5A 16-Pin SO T/R - Tape and Reel (Alt: L5991D013TR)

L5991D

D# 38Y7872

STMicroelectronics

Current Mode PWM Controller 1.5A 16-Pin SO Tube - Bulk (Alt: 38Y7872)

Part Number

Manufacturer

Description

Stock

L5991D013TR

D# L5991D013TR

STMicroelectronics

Current Mode PWM Controller 1.5A 16-Pin SO T/R (Alt: L5991D013TR)

Part Number

Manufacturer

Description

Stock

L5991D

D# L5991D

STMicroelectronics

Current Mode PWM Controller 1.5A 16-Pin SO Tube (Alt: L5991D)

L5991D013TR

D# L5991D013TR

STMicroelectronics

Current Mode PWM Controller 1.5A 16-Pin SO T/R (Alt: L5991D013TR)

Part Number

Manufacturer

Description

Stock

L5991D013TR

STMicroelectronics

2493

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

STMICROELECTRONICS L5991D

L5991D013TR

STMicroelectronics

Min Qty 70

2500

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

L5991D

D# 497-14768-5-ND

STMicroelectronics

IC REG CTRLR BST FLYBK ISO SO16

1111

L5991D013TR

D# 497-3997-2-ND

STMicroelectronics

IC REG CTRLR PWM CM 16-SOIC

5000

Part Number	Manufacturer	Description	Stock
L5991D013TR	STMicroelectronics	In stock shipping within 2days	7610
L5991D013TR-2	STMicroelectronics	In stock shipping within 2days	2500
L5991D	STMicroelectronics	In stock shipping within 2days	2287

Part Number

Manufacturer

Description

Stock

L5991D

D# 2460840

STMicroelectronics

PWM CONTROLLER, 1MHZ, 16V, NSOIC-16

RoHS: Compliant

Min Qty: 1

Container: Each

L5991D013TR

D# 2460841

STMicroelectronics

PWM CONTROLLER, 1MHZ, 16V, NSOIC-16

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

L5991 Series 20 V 93% 1 MHz Primary Controller with Standby - SOIC-16

RoHS: Compliant

pbFree: Yes

L5991D013TR

STMicroelectronics

L5991 Series 20 V 93 % 1 MHz Primary Controller with Standby - SOIC-16

RoHS: Compliant

pbFree: Yes

Part Number	Manufacturer	Description	Stock
L5991D	STMicroelectronics	OEM/CM QUOTES ONLY \| NO BROKERS	2379
L5991D013TR	STMICROELECTRONICS	OEM/CM QUOTES ONLY \| NO BROKERS	7540
EL5991D13TR	STMicroelectronics	OEM/CM QUOTES ONLY \| NO BROKERS	1546

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

OEM/CM Immediate delivery

880

L5991D013TR

STMicroelectronics

OEM/CM Immediate delivery

30000

Part Number

Manufacturer

Description

Stock

L5991D013TR

D# 511-L5991D013TR

STMicroelectronics

Switching Controllers Prog Current Mode

RoHS: Compliant

1787

L5991D

D# 511-L5991D

STMicroelectronics

Switching Controllers Prog Current Mode

RoHS: Compliant

953

Part Number

Manufacturer

Description

Stock

L5991D

D# XSKDRABV0039638

STMicroelectronics

L5991 Series 20 V 93% 1 MHz Primary Controller with Standby - SOIC-16

380

Part Number

Manufacturer

Description

Stock

L5991D

D# 38Y7872

STMicroelectronics

PWM CTRL, 1MHZ, -40 TO 150DEG C, Input Voltage:-, Output Voltage:-, Output Current:1.5A, Supply Voltage Min:14V, Supply Voltage Max:16V, Controller IC Case Style:NSOIC, No. of Pins:16Pins, Frequency:1MHz, Product Range:- RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

L5991D013TR

D# 56P8426

STMicroelectronics

SPS ASSP

RoHS: Not Compliant

Min Qty: 2500

Container: TAPE & REEL - FULL

Part Number

Manufacturer

Description

Stock

L5991D

D# NS-L5991D

STMicroelectronics

OEM/CM ONLY

7272

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

SWITCHING CONTROLLER, CURRENT-MODE, 1.5A, 1000KHZ SWITCHING FREQ-MAX, BCDMOS, PDSO16

Part Number

Manufacturer

Description

Stock

L5991D

D# 0380044

STMicroelectronics

STMicroelectronics L5991D, PWM Current Mode Controller, 1.5 A, 1, 12 20 V, 16-Pin SOIC, PK

Min Qty: 5

Container: Package

Part Number	Manufacturer	Description	Stock
EL5991D13TR	STMicroelectronics	OEM/CM ONLY	1360
L5991D	STMicroelectronics	OEM/CM ONLY	366
L5991D013TR	STMicroelectronics	OEM/CM ONLY	6676

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

IN stock Immediate delivery

875

L5991D013TR

STMicroelectronics

IN stock Immediate delivery

29985

Part Number

Manufacturer

Description

Stock

L5991D013TR

STMicroelectronics

shipping today

2390

L5991D

STMicroelectronics

shipping today

2926

Part Number

Manufacturer

Description

Stock

L5991D013TR

D# 25927143

STMicroelectronics

Current Mode PWM Controller 1.5A 1000kHz 16-Pin SO T/R

RoHS: Compliant

L5991D

D# 52710938

STMicroelectronics

Current Mode PWM Controller 1.5A 1000kHz 16-Pin SO Tube

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

L5991D

STMicroelectronics

RFQ

14129

Part Number

Manufacturer

Description

Stock

L5991D013TR

STMicroelectronics

IC REG CTRLR PWM CM 16-SOIC

14515

L5991D

STMicroelectronics

IC REG CTRLR BST FLYBK ISO SO16

4181

Part Number

Manufacturer

Description

Stock

L5991D

D# 2460840

STMicroelectronics

PWM CONTROLLER, 1MHZ, 16V, NSOIC-16

RoHS: Compliant

Min Qty: 1

Container: Each

L5991D013TR

D# 2460841

STMicroelectronics

PWM CONTROLLER, 1MHZ, 16V, NSOIC-16

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Quick Inquiry

L5991D

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS