LTC3553 Linear Technology Corporation, LTC3553 Datasheet - Page 36

• Manufacturer Part Number: LTC3553
• Description: Micropower USB Power Manager
• Manufacturer: Linear Technology Corporation

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Hot Swap and Bat-Track are trademarks of Linear Technology Corporation.
36
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
Dual DC/DC Converter with USB Power
Manager and Li-Ion Battery Charger
2-Cell, Multioutput DC/DC Converter with
USB Power Manager
Dual Input USB/AC Adapter Li-Ion Battery
Charger with Adjustable Output 600mA
Buck Converter
Standalone Linear Li-Ion Battery Charger
with Adjustable Output Dual Synchronous
Buck Converter
with Dual Synchronous Buck Converter
Micropower USB Power Manager with
Li-Ion Charger and Dual Buck Regulators
USB Power Manager with Li-Ion Charger,
Triple Step-Down DC/DC Regulators and
External High Voltage Buck Control
USB Charger with Dual Buck Regulators
I
Li-Ion Charger, Triple Step-Down DC/DC
Regulators, Dual LDOs and 40V LED
Backlight Driver
500mA Standalone Charger with 300mA
Synchronous Buck
2
C Controlled USB Power Manager with
●
FAX: [phone]
●
www.linear.com
COMMENTS
Seamless Transition Between Input Power Sources: Li-Ion Battery, USB and 5V Wall Adapter,
Two High Effi ciency DC/DC Converters: Up to 96%, Full Featured Li-Ion Battery Charger with
Accurate USB Current Limiting (500mA/100mA) Pin-Selectable Burst Mode Operation,
Hot Swap™ Output for SDIO and Memory Cards, 4mm × 4mm QFN-24 Package
Seamless Transition Between 2-Cell Battery, USB and AC Wall Adapter Input Power Sources,
Main Output: Fixed 3.3V Output, Core Output: Adjustable from 0.8V to V
Output for Memory Cards, Power Supply Sequencing: Main and
Hot Swap Accurate USB Current Limiting, High Frequency Operation = 1MHz, High Effi ciency:
Up to 92%, 4mm × 4mm QFN-24 Package
Synchronous Buck Converter, Effi ciency = 93%, Adjustable Output at 600mA, Charge
Current: 950mA Programmable, USB-Compatible, Automatic Input Power Detection
and Selection, 5mm × 3mm DFN-16 Package
Synchronous Buck Converter, Effi ciency > 90%, Adjustable Outputs at 800mA and
400mA, Charge Current Programmable Up to 950mA, USB-Compatible,
5mm × 3mm DFN-16 Package
Synchronous Buck Converter, Effi ciency > 90%, Outputs 1.8V at 800mA and 1.575 at
400mA, Charge Current Programmable Up to 950mA, USB-Compatible,
5mm × 3mm DFN-16 Package
PMIC with 10μA Standby Mode Quiescent Current (All Outputs On), Seamless Transition
Between Input Power Sources: Li-Ion/Polymer Battery and USB, 240mΩ Internal Ideal
Diode Provides Low Loss PowerPath, Dual High Effi ciency Step-Down Switching Regulators
(200mA, 200mA I
PowerPath Control with Instant-On Operation, Programmable Charge Current (400mA
Maximum) with Thermal Limiting, Compact 3mm × 3mm × 0.55mm
20-Pin UTQFN Package
Triple Step-Down Switching Regulators (600mA, 400mA, 400mA); Seamlessly Transition
Input Power between Li-Ion Battery, USB, 5V Wall Adapter, or External High Voltage Buck
Regulator with Bat-Track™; 4mm × 4mm QFN-28 Package
Adjustable, Synchronous Buck Converters, Effi ciency > 90%, Outputs: Down to 0.8V at
400mA Each, Charge Current Programmable Up to 950mA, USB-Compatible,
3mm × 3mm QFN-16 Package
Complete Multifunction PMIC: Linear Power Manager and Three Buck Regulators, 10-LED
Boost Reg, Charge Current Programmable Up to 1.5A from Wall Adapter Input, Thermal
Regulation, Synchronous Buck Converters Effi ciency: >95%, ADJ Outputs: 0.8V to 3.6V at
800mA/500mA/500mA, Pushbutton Control, I
Protection, Bat-Track Adaptive Output Control, 200mΩ Ideal Diode, 4mm × 7mm QFN-44
Package, “-1” and “-4” versions have 4.1V V
Processors
Charges Single-Cell Li-Ion Batteries, Timer Termination + C/10, Thermal Regulation,
Buck Output: 0.8V to V
OUT
) with Adjustable V
BAT
, Buck Input V
IN
OUT
: 2.7V to 5.5V, 3mm × 3mm DFN-10 Package
FLOAT
, Pushbutton On/Off Control with System Reset,
2
C Interface, 2× 150mA LDOs, Overvoltage
, “–3” and “–4” Versions for SiRF Atlas IV
© LINEAR TECHNOLOGY CORPORATION 2009
BATT(MIN)
LT 0809 • PRINTED IN USA
, Hot Swap
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