Datasheet Linear Technology LTC3520

Manufacturer	Linear Technology
Series	LTC3520

Synchronous 1A Buck-Boost and 600mA Buck Converters

Datasheets

Preview and Download

PDF, 324 Kb, Language: en, File uploaded: Sep 21, 2017, Pages: 24
Synchronous 1A Buck-Boost and 600mA Buck Converters

Extract from the document

Prices

Packaging

	LTC3520EUF#PBF	LTC3520EUF#TRPBF	LTC3520IUF#PBF	LTC3520IUF#TRPBF
N	1	2	3	4
Package	4x4 QFN-24 Package Outline Drawing	4x4 QFN-24 Package Outline Drawing	4x4 QFN-24 Package Outline Drawing	4x4 QFN-24 Package Outline Drawing
Package Code	UF	UF	UF	UF
Package Index	05-08-1697	05-08-1697	05-08-1697	05-08-1697
Pin Count	24	24	24	24

Parametrics

Parameters / Models	LTC3520EUF#PBF	LTC3520EUF#TRPBF	LTC3520IUF#PBF	LTC3520IUF#TRPBF
Buck Output Current, A	0.6	0.6	0.6	0.6
Buck-Boost Output Current, A	1	1	1	1
Demo Boards	DC1062A	DC1062A	DC1062A	DC1062A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no
Features	Burst Mode, Resistor Set Frequency, Sequencing, LDO, Output Disconnect, 100% Duty Cycle	Burst Mode, Resistor Set Frequency, Sequencing, LDO, Output Disconnect, 100% Duty Cycle	Burst Mode, Resistor Set Frequency, Sequencing, LDO, Output Disconnect, 100% Duty Cycle	Burst Mode, Resistor Set Frequency, Sequencing, LDO, Output Disconnect, 100% Duty Cycle
Number of Outputs	2	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85
PowerPath	Linear PowerPath, Internal Ideal Diode	Linear PowerPath, Internal Ideal Diode	Linear PowerPath, Internal Ideal Diode	Linear PowerPath, Internal Ideal Diode
Vin Max, V	5.5	5.5	5.5	5.5
Vin Min, V	2.2	2.2	2.2	2.2

Eco Plan

	LTC3520EUF#PBF	LTC3520EUF#TRPBF	LTC3520IUF#PBF	LTC3520IUF#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

Download
Complete 3-Rail Power Supply in a 4mm × 4mm QFN Package &mdash LT Journal
PDF, 451 Kb, File published: Jan 14, 2008
Extract from the document
LвЂ‰DESIGN IDEAS Complete 3-Rail Power Supply in a
4mm Г— 4mm QFN Package by John Canfield
Introduction
Battery-powered portable electronic
devices such as portable media players, handheld PCs, and GPS receivers
typically require several internal
power supply rails: a 3.0V or 3.3V
supply for audio, motor drivers, and
micro hard disk drives; a 1.2V or 1.5V
rail for a logic core; and often a 1.8V
supply to support Flash memory. For
devices supplied by a Li-Ion battery,
the power system is further complicated by the fact that the 3.0/3.3V
output rail lies within the discharge
voltage range of the battery, thereby
mandating a power supply solution
that can step the input voltage up or
down depending on the battery's state
of charge. In addition, most systems
require specific power-up sequencing
between the multiple output voltage
rails to ensure consistent and reliable
system initialization. …

Model Line

Series: LTC3520 (4)

LTC3520EUF#PBF LTC3520EUF#TRPBF LTC3520IUF#PBF LTC3520IUF#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck
Power Management > PMIC & Multifunction > Multitopology DC/DC
Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost

Related publications

Datasheets Datasheet Analog Devices LTC3520

EMS supplier

Slices

Microcontrollers