LTC3101
RECOMMENDED FOR NEW DESIGNSWide VIN, Multi-Output DC/DC Converter and PowerPath Controller
- Part Models
- 2
- 1ku List Price
- Starting From $5.98
Overview
- Low Loss PowerPath™ Control: Seamless, Automatic Transition from Battery to USB or Wall Adapter Power
- Wide VIN Range: 1.8V to 5.5V
- Buck-Boost VOUT: 1.5V to 5.25V
- Buck-Boost Generates 3.3V at 300mA for VIN ≥ 1.8V, 3.3V at 800mA for VIN ≥ 3V
- Dual 350mA Buck Regulators, VOUT: 0.6V to VIN
- 38μA Quiescent Current in Burst Mode® Operation
- 1.8V, 50mA Always-On LDO
- Protected 100mA Hot Swap™ Output
- Pushbutton On/Off Control
- Current Limited 200mA MAX Output
- Programmable Power-Up Sequencing
- 24-lead 4mm × 4mm × 0.75mm QFN Package
The LTC3101 is a complete power management solution for low power portable devices. It provides three high efficiency switching DC/DC converters which seamlessly transition from battery to USB/wall adapter power when available. A synchronous buck-boost regulator provides complete flexibility, allowing operation from a single Li-Ion/Polymer battery, 2 to 3 AA cells, a USB port or any other power source operating from 1.8V to 5.5V.
Two always-alive outputs, a 50mA LDO and a 200mA MAX output that tracks the higher voltage input supply, provide power for critical functions or additional external regulators. Flash memory cards can be directly powered from the protected 100mA Hot Swap output. Pushbutton control logic and a programmable-duration microprocessor reset generator simplify interfacing to a microprocessor while internal sequencing and independent enable pins provide flexible power-up options. The LTC3101 is available in a low profile (0.75mm) 24-lead 4mm × 4mm QFN package.
Applications
- Ultra-Portable Digital Video Cameras
- Personal Handheld GPS Navigators
- Portable Medical Instruments
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Brochure 1
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 |
|---|---|---|---|
| LTC3101EUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC3101EUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC3101EUF#PBF | PRODUCTION | |
| LTC3101EUF#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942 | Obsolete | Battery Gas Gauge with Temperature, Voltage Measurement |
| Circuit Monitors 1 | ||
| LTC2960 | RECOMMENDED FOR NEW DESIGNS | 36V Nano-Current Two-Input Voltage Monitor |
| Hot Swap Controllers 1 | ||
|
LTC4362-1 LTC4362-2 |
1.2A Overvoltage/Overcurrent Protector | |
| Ideal Diodes and PowerPath Controllers 2 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC3101
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC3101EUF Demo Board | 2-Cell, Multi-Output DC/DC Converter and PowerPath Manager
Resources
Latest Discussions
No discussions on LTC3101 yet. Have something to say?
Start a Discussion on EngineerZone®