LM3570SD Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
Texas Instruments LM3570SD is a low-noise white LED driver system for display backlighting, driving up to 2 strings of LEDs with integrated boost converter, operating from 2.7 V to 5.5 V input, in a compact LLP-14 package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 15
- Lifecycle
- OBSOLETE
- Datasheet
- LM3570SD Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-string white LED driver with integrated boost converter for LCD backlight control
- Input voltage range of 2.7 V to 5.5 V covering standard Li-Ion and regulated supplies
- Low-noise architecture minimizes EMI for sensitive display and portable applications
- Compact LLP-14 (14-pin no-lead) package enabling minimal PCB footprint
Applications
The LM3570SD is designed for LCD backlight driver circuits in mobile phones, portable media players, and handheld consumer electronics requiring bright, uniform LED illumination. Its integrated boost topology and dual-channel capability make it well-suited for tablet displays and compact industrial HMIs. The device efficiently drives white LEDs from a low-voltage battery supply with minimal external components.
Specifications
| YTEOL | 0 |
| Interface IC Type | LED DISPLAY DRIVER |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LM3570SD support for LED driving?
The LM3570SD operates from an input voltage range of 2.7 V to 5.5 V, making it compatible with single-cell Li-Ion batteries and standard 3.3 V or 5 V regulated rails. This broad range ensures reliable LED backlight operation across varying battery states in portable devices.
How many LED strings can the LM3570SD drive simultaneously?
The LM3570SD can drive up to 2 independent white LED strings, supporting balanced current control across both channels. Each string can carry tens of milliamps of LED current, suitable for LCD backlight applications in smartphones and portable displays.
What package does the LM3570SD use and how does it benefit compact PCB layouts?
The LM3570SD is housed in a 14-pin LLP (no-lead leadless) package with an exposed pad for thermal dissipation, measuring approximately 3 mm x 3 mm. This small footprint minimizes board area, making it ideal for space-constrained portable consumer electronics designs.
What are the typical applications for the LM3570SD LED driver?
The LM3570SD is commonly used in LCD backlighting for mobile phones, digital cameras, portable gaming devices, and handheld instruments. Its integrated boost converter and 2-string architecture support efficient drive of 4 to 8 white LEDs per string at up to 20 mA per channel.
How does the LM3570SD minimize EMI in sensitive display systems?
The LM3570SD employs a fixed-frequency switching architecture operating at approximately 1 MHz, which confines switching noise to predictable harmonic frequencies. This low-noise design allows it to coexist with RF and audio circuits in smartphones without degrading signal quality.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”