Datasheet Linear Technology LT3559-1

Manufacturer	Linear Technology
Series	LT3559-1

Linear USB Battery Charger with Dual Buck Regulators

Datasheets

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PDF, 314 Kb, Revision: B, File uploaded: Oct 2, 2017

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Prices

Packaging

	LTC3559EUD-1#PBF	LTC3559EUD-1#TRPBF
N	1	2
Package	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing
Package Code	UD	UD
Package Index	05-08-1691	05-08-1691
Pin Count	16	16

Parametrics

Parameters / Models	LTC3559EUD-1#PBF	LTC3559EUD-1#TRPBF
Battery Chemistry	Li-Ion, Li-Polymer	Li-Ion, Li-Polymer
Buck Output Current, A	0.4, 0.4	0.4, 0.4
Demo Boards	DC1085A	DC1085A
Design Tools	LTspice Model	LTspice Model
Export Control	no	no
Features	Battery Charger, Burst Mode	Battery Charger, Burst Mode
Float Voltage, V	4.1V, 4.2V	4.1V, 4.2V
Max Charge Current, A	0.95	0.95
Number of Cells	1	1
Number of Outputs	2	2
Operating Temperature Range, °C	0 to 85	0 to 85
Type of Charger	Linear	Linear
Vin Max, V	5.5	5.5
Vin Min, V	3	3

Eco Plan

	LTC3559EUD-1#PBF	LTC3559EUD-1#TRPBF
RoHS	Compliant	Compliant

Other Options

LTC3559

Articles

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USB Compatible Li-Ion Battery Charger and Dual Buck Regulators in a Single 3mm × 3mm QFN &mdash LT Journal
PDF, 514 Kb, File published: Jan 14, 2008
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DESIGN IDEASвЂ‰L USB Compatible Li-Ion Battery
Charger and Dual Buck Regulators
in a Single 3mm Г— 3mm QFN
by Aspiyan Gazder Introduction
Manufacturers of handheld devices
such as MP3 players are always looking to reduce system size and cost,
even as they increase performance
and functionality. The only way to do
so is to integrate functions at the IC
level. For applications powered from
a single Li-Ion cell, the LTC3559
provides a single chip solution that
charges a Li-Ion cell while efficiently
generating two supply voltage rails to
power the device.
The LTC3559 is a USB compatible
battery charger and two monolithic
synchronous buck regulators integrated into a low profile 3mm Г— 3mm
16-lead QFN package. The battery
charger has all the features that a
stand alone battery charger might
offer, such as an NTC input for temperature qualified charging, internal
timer termination and bad battery …
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New Family of Integrated Power Controllers Combine Fast Battery Charging, PowerPath Control and Efficient DC/DC Converters in Less Than 20mm2 &mdash LT Journal
PDF, 303 Kb, File published: Sep 23, 2008
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LвЂ‰DESIGN FEATURES New Family of Integrated Power
Controllers Combine Fast Battery
Charging, PowerPath Control and
Efficient DC/DC Converters in
by Sam Nork
Less Than 20mm2
Introduction
The quickest way to build an efficient
power system for a battery-powered
portable application is to use an
IC that combines all power control
functions into a single chip, namely a
Power Management Integrated Circuit
(PMIC). PMICs seamlessly manage
power flow from various power sources
(wall adapters, USB and batteries) to
power loads (device systems and the
charging battery), while maintaining
current limits where required (such
as that specified for USB). To this
end, PMICs typically feature built-in
PowerPathв„ў control, DC/DC conver-USB/WALL
4.35V TO 5.5V TO OTHER …

Model Line

Series: LT3559-1 (2)

LTC3559EUD-1#PBF LTC3559EUD-1#TRPBF

Manufacturer's Classification

Power Management > Battery Management > Battery Charger IC > Linear Battery Chargers
Power Management > PMIC & Multifunction > Battery Charger Plus DC/DC