# LM3526 - Texas Instruments USB Power Switch

## Product Summary

The Texas Instruments LM3526 is a dual-port USB power switch offering over-current protection. It operates from a 2.7V to 5.5V input voltage range.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | LM3526 |
| Manufacturer | Texas Instruments |
| Product Type | USB Power Switch |
| Series | LM3526 |
| Category | Uncategorized |
| Subcategory | USB Power Switch |
| Mounting Type | Surface Mount |

## Description

The LM3526 from Texas Instruments is a dual-port USB power switch designed for host port applications, ideal for notebooks and desktop PCs requiring power for multiple ports. It provides Universal Serial Bus standard power switch and over-current protection.

Key electrical specifications include an input voltage range of 2.7V to 5.5V, a maximum switch resistance of 140 mΩ, and a nominal short circuit output current of 1A. The device features a minimum continuous load current of 500mA and a 1 ms fault flag delay to filter hot-plug events. It also includes under-voltage lockout (UVLO) and thermal shutdown protection.

This component is housed in a small SOIC-8 package, minimizing board space. It is compatible with USB 1.1 and USB 2.0 standards. The smooth turn-on feature eliminates in-rush induced voltage drops, and the dual-stage thermal protection circuit ensures individual switch protection.

Applications for the LM3526 include USB root hubs, USB monitor hubs, self-powered USB hub devices, and high-power USB devices requiring in-rush limiting. It can also serve as a general-purpose high-side switch.

## Key Specifications

| Specification | Value |
| --- | --- |
| SVHC Present | Not Present |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 50 |
| Pricing Available | No |

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| Chanetech | 50 |  |  |  |  |

## Features

- Dual-port USB power switch with over-current protection.
- Operates from 2.7V to 5.5V input voltage.
- Low 140 mΩ maximum switch resistance.
- 1 ms fault flag delay filters hot-plug events.
- Compact SOIC-8 package for space savings.

## Applications

- Ideal for USB root and self-powered hubs.
- Suitable for desktop and notebook PCs.
- Used in USB monitor hub applications.
- Supports high-power USB devices.
- General purpose high-side switching.

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Moisture Sensitivity Level | 1 Unlimited |
| SVHC Present | Not Present |

## Documents and Media

- Datasheet: https://static.distyparts.com/disty-files/datasheets/06/09/ff/LM3526
- Image: https://static.distyparts.com/disty-files/images/6f/b9/2a/d0008a.png
- Product Page: https://distyparts.com/product/lm3526
- RFQ URL: https://distyparts.com/product/lm3526#rfq

## FAQs

### What is the input voltage range of the LM3526?

2.7V to 5.5V.

### What is the operating temperature range?

-40°C to 125°C.

### What is the package type?

SOIC-8.

### What is the maximum on-resistance per channel?

140 mΩ.

### What is the continuous load current rating?

Minimum 500mA per channel.

### What enable options are available?

Active High and Active Low.

### What is the fault flag delay?

1 ms, designed to filter hot-plug events.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/texas-instruments
- Category: https://distyparts.com/category/uncategorized/new-products
- Product Page: https://distyparts.com/product/lm3526
- Markdown File: https://distyparts.com/product/lm3526.md
- TXT File: https://distyparts.com/product/lm3526.txt