LTC3566

PRODUCTION

High Efﬁciency USB Power Manager Plus 1A Buck-Boost Converter

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $5.06

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Overview

Power Manager

High Efficiency Switching PowerPath^™ Controller with Bat-Track^™ Adaptive Output Control
Programmable USB or Wall Input Current Limit (100mA/500mA/1A)
Full Featured Li-Ion/Polymer Battery Charger
Instant-On Operation with Discharged Battery
1.5A Maximum Charge Current
Internal 180mΩ Ideal Diode Plus External Ideal Diode Controller Powers Load in Battery Mode
Low No-Load I_Q when Powered from BAT (<30μA)

1A Buck-Boost DC/DC

High Efﬁciency (1A I_OUT)
2.25MHz Constant Frequency Operation
Low No-Load Quiescent Current (~13μA)
Zero Shutdown Current
Pin Control of All Functions

The LTC3566 family are highly integrated power management and battery charger ICs for Li-Ion/Polymer battery applications. They include a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, and a high efficiency synchronous buck-boost switching regulator. Designed specifically for USB applications, the LTC3566 family’s switching power manager automatically limits input current to a maximum of either 100mA or 500mA for USB applications or 1A for adapter-powered applications.

The LTC3566 family’s switching input stage transmits nearly all of the 2.5W available from the USB port to the system load with minimal power wasted as heat. This feature allows the LTC3566 family to provide more power to the application and eases the constraint of thermal budgeting in small spaces. The LTC3566-2 automatically reduces charge current to maintain a regulated 3.6V V_OUT during low battery conditions; the LTC3566 does not. The synchronous buck-boost DC/DC can provide up to 1A.

The LTC3566 family is available in a low profile 24-lead 4mm × 4mm QFN surface mount package.

Applications

HDD Based MP3 Players, PDA, GPS, PMP Products
Other USB Based Handheld Products

Part Models: 4
1ku List Price: Starting From $5.06

Documentation

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
LTC3566EUF#PBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3566EUF#TRPBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3566EUF-2#PBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3566EUF-2#TRPBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products
		PCN21_0269_Form Material_Report Detailed Change Description Qualification Results Summary
LTC3566EUF#PBF	PRODUCTION
LTC3566EUF#TRPBF	PRODUCTION
LTC3566EUF-2#PBF	PRODUCTION
LTC3566EUF-2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Battery Monitors & Fuel Gauges 1
LTC2942	NOT RECOMMENDED FOR NEW DESIGNS	Battery Gas Gauge with Temperature, Voltage Measurement
Circuit Monitors 1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Protection Switches & Controllers 2
LTC4362-1 LTC4362-2		1.2A Overvoltage/Overcurrent Protector
LTC2955	RECOMMENDED FOR NEW DESIGNS	Pushbutton On/Off Controller with Automatic Turn-On