STMicroelectronics L5991A
- Part No.:
- L5991A
- Manufacturer:
- STMicroelectronics
- Category:
- DC DC Switching Controllers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
L5991A.pdf
- Description:
- IC REG CTRLR FLYBACK 16DIP
- Quantity:
- Payment:

- Shipping:

Inventory:1,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
L5991A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Type:
- Transistor Driver
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive, Isolation Capable
- Topology:
- Flyback
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 7.6V ~ 20V
- Frequency - Switching:
- Up to 1MHz
- Duty Cycle (Max):
- 93%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- -
- Control Features:
- Current Limit, Frequency Control, Soft Start
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
L5991A FAQ
1.How can I place an order for L5991A through Aetrix?
1.Please submit a Request for Quotation (RFQ) for L5991A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for L5991A reliable?
The price and inventory of L5991A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L5991A is usually 5 days.
3.What payment methods are accepted for L5991A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L5991A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for L5991A?
L5991A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your L5991A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for L5991A?
5.For technical support, including L5991A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L5991A requirements.
6.How does Aetrix verify that L5991A is sourced from the original manufacturer or authorized distributors?
6.All L5991A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that L5991A meets industry standards.
7.What is the process for return or replacement of L5991A?
All L5991A units undergo pre-shipment inspection (PSI). If there is an issue with L5991A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The L5991A part is unused and in its original packaging.
Return procedure for L5991A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
L5991A Tags

-
UCC28C45DR
Texas Instruments

-
UCC28C40DR
Texas Instruments

-
UCC28C43DR
Texas Instruments

-
ZXSC410E6TA
Diodes Incorporated
-
LM3524DMX/NOPB
Texas Instruments
-
LM3489MMX/NOPB
Texas Instruments

-
MIC2102YML-TR
Microchip Technology

-
LM5148RGYR
Texas Instruments
-
TL598CDR
Texas Instruments

-
LM5155DSSR
Texas Instruments

-
LM25085MYX/NOPB
Texas Instruments

-
UCC2813DTR-0
Texas Instruments
Tech Hub
The ATSHA204A - STUCZ - T is a remarkable security integrated circuit that stands at the forefront of safeguarding modern - day electronic devices. In an era where data breaches and unauthorized access…
The ATSHA204A - SSHDA - T is a highly regarded security integrated circuit that plays a crucial role in safeguarding various electronic devices.1. Key FeaturesRobust Authentication MechanismsThis devic…
In the realm of electronic security, the ATSHA204A - MAHDA - T, a product of Microchip's CryptoAuthentication™ series, emerges as a highly - capable hardware security authentication chip.The core feat…
In the landscape of electronic components, the CAP200DG - TL, a product of Power Integrations, stands out as an innovative zero - power X - capacitor auto - discharge IC within the CAPZero - 2 series.T…

