LTC3576
LTC3576-1
PRODUCTION
Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
- Part Models
- 4
- 1ku List Price
- Starting From $7.96
Overview
- Bidirectional Switching Regulator with Bat-Track™ Adaptive Output Control Provides Efficient Charging and a 5V Output for USB On-The-Go
- Bat-Track Control of External High Voltage Step-Down Switching Regulator
- Overvoltage Protection Guards Against Damage
- Instant-On Operation with Discharged Battery
- Triple Step-Down Switching Regulators with I2C Adjustable Outputs (1A/400mA/400mA IOUT)
- 180mΩ Internal Ideal Diode + External Ideal Diode Controller Powers the Load in Battery Mode
- Li-Ion/Polymer Battery Charger (1.5A Max ICHG)
- Battery Float Voltage: 4.2V (LTC3576), 4.1V (LTC3576-1)
- Compact (4mm × 6mm × 0.75mm) 38-pin QFN Package
The LTC3576/LTC3576-1 are highly integrated power management and battery charger ICs for Li-Ion/Polymer battery applications. They each include a high efficiency, bidirectional switching PowerPath™ manager with automatic load prioritization, a battery charger, an ideal diode, a controller for an external high voltage switching regulator and three general purpose step-down switching regulators with I2C adjustable output voltages. The internal switching regulators automatically limit input current for USB compatibility and can also generate 5V at 500mA for USB on-the-go applications when powered from the battery. Both the USB and external switching regulator power paths feature Bat-Track optimized charging to provide maximum power to the application from supplies as high as 38V. An overvoltage circuit protects the LTC3576/LTC3576-1 from damage due to high voltage on the VBUS or WALL pins with just two external components. The LTC3576/LTC3576-1 are available in a low profile 38-pin (4mm × 6mm × 0.75mm) QFN package.
Applications
- HDD-Based Media Players
- GPS, PDAs, Digital Cameras, Smart Phones
- Automotive Compatible Portable Electronics
Documentation
Data Sheet 1
User Guide 2
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3576EUFE#PBF | 38-Lead QFN (4mm x 6mm x 0.75mm w/ EP) | ||
| LTC3576EUFE#TRPBF | 38-Lead QFN (4mm x 6mm x 0.75mm w/ EP) | ||
| LTC3576EUFE-1#PBF | 38-Lead QFN (4mm x 6mm x 0.75mm w/ EP) | ||
| LTC3576EUFE-1#TRPBF | 38-Lead QFN (4mm x 6mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC3576EUFE#PBF | PRODUCTION | |
| LTC3576EUFE#TRPBF | PRODUCTION | |
| LTC3576EUFE-1#PBF | PRODUCTION | |
| LTC3576EUFE-1#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942 | Obsolete | Battery Gas Gauge with Temperature, Voltage Measurement |
| Hot Swap Controllers 1 | ||
|
LTC4361-1 LTC4361-2 |
Overvoltage/Overcurrent Protection Controller | |
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| Temperature Sensors 1 | ||
| LTC2991 | RECOMMENDED FOR NEW DESIGNS | Octal I2C Voltage, Current, and Temperature Monitor |
Evaluation Kits
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