What is LP3943ISQ?
LP3943ISQ is a PMIC - LED Drivers component from Texas Instruments. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
Supply original LP3943ISQ, PMIC - LED Drivers, by Texas Instruments
IC LED DRIVER PS DIM 25MA 24WQFN
RoHS
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Key specifications
Serise
-
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Categroy
PMIC - LED DriversDescription
IC LED DRIVER PS DIM 25MA 24WQFN
key Attributes
-
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
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Globally recognized certifications
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ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Authenticity Verification
CoC Available on Request
Pre-Shipment Inspection
Responsive RFQ Support
Why buyers trust this sourcing flow
Our quality workflow is designed to reduce counterfeit risk and support confident procurement. Components are reviewed through documented handling and inspection steps so buyers can evaluate sourcing with stronger authenticity controls.
Structured product content
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Product overview
Overview
The
The LP3982 is designed for portable RF and wireless applications with demanding performance and space requirements.
The LP3982 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life.
The LP3982 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.
The LP3982 consumes less than 0.01µA in shutdown mode and has fast turn-on time less than 50µs.
The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the 5-lead of SC-70 packages.
Features◆ Ultra-Low-Noise for RF Application◆ 2V- 6V Input Voltage Range◆ Low Dropout : 220mV @ 300mA◆ 1.2V, 1.5V, 1.8V, 2.5V, 2.8V 3.0V and 3.3V Fixed◆ 300mA Output Current, 550A Peak Current◆ High PSSR:-80dB at 1KHz◆ < 0.01uA Standby Current When Shutdown◆ Available in SC-70-5 Package◆ TTL-Logic-Controlled Shutdown Input◆ Ultra-Fast Response in Line/Load transient◆ Current Limiting and
Thermal Shutdown Protection◆ Quick start-up (typically 50uS)Applications◇ Portable Media Players/MP3 players◇ Cellular and Smart mobile phone◇ LCD◇ DSC Sensor◇ Wireless Card
Full technical breakdown
Detailed Specifications
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Popular Specs Surfaced First
Product Attribute
Part Status
Active
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
ECCN
EAR99
Product Attribute
Lead Free
Contains Lead
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 2 days ago)
Product Attribute
Mounting Type
Surface Mount
Part Status
Active
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Contains Lead
Lifecycle Status
ACTIVE (Last Updated: 2 days ago)
Mounting Type
Surface Mount
Factory Lead Time
6 Weeks
Packaging
Tape & Reel (TR)
Categories
Integrated Circuits (ICs)
Peak Reflow Temperature (Cel)
260
Supply Voltage
5V
Frequency
400kHz
Manufacturer
Texas
Terminal Position
QUAD
Terminal Pitch
0.5mm
Operating Temperature
-40°C~85°C TA
Nominal Supply Current
550μA
HTS Code
8542.39.00.01
Max Power Dissipation
400mW
Package / Case
24-WFQFN Exposed Pad
Number Of Functions
1
Number Of Terminations
24
Pin Count
24
Number Of Pins
24
Radiation Hardening
No
Reflow Temperature-Max (S)
40
Width
4mm
Length
4mm
Mount
Surface Mount
Max Supply Voltage
5.5V
Low Level Output Current
25mA
Height
800μm
Thickness
750μm
Power Dissipation
400mW
Min Supply Voltage
2.3V
Input Characteristics
STANDARD
Number Of Outputs
16
Sub-Categories
PMIC - LED Drivers
Subcategory
Display Drivers
Output Characteristics
OPEN-DRAIN
Max Supply Current
550μA
Applications
Camera Flash
Base Part Number
LP3943
Quiescent Current
350μA
Type
Power Switch
Manufacturer'S Part No.
LP3943ISQ
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
JESD-609 Code
e0
HTSUS
8542.39.0001
ECCN Code
EAR99
Power Supplies
2.5/5V
Terminal Finish
Tin/Lead (Sn/Pb)
Internal Switch(S)
Yes
Multiplexed Display Capability
NO
Dimming
I2C, SMBus
Fmax-Min
0.4 MHz
Topology
Shift Register
Number Of Segments
16
Data Input Mode
SERIAL
Voltage - Supply (Min)
2.3V
Common questions
Product FAQ
Quick answers for buyers reviewing LP3943ISQ, stock, documentation, and sourcing steps.
What package and description are listed for LP3943ISQ?
LP3943ISQ is listed with package reference -. The current product description is IC LED DRIVER PS DIM 25MA 24WQFN, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is LP3943ISQ available in stock?
This page currently shows 64541 units in stock and 64541 units available for LP3943ISQ. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for LP3943ISQ?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for LP3943ISQ by Texas Instruments. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for LP3943ISQ?
A dedicated datasheet link is not currently listed for LP3943ISQ by Texas Instruments. Contact us with the part number and required parameters so the team can help confirm documentation during quotation.
How should buyers verify LP3943ISQ before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for LP3943ISQ before approving the order.
PMIC - LED Drivers
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