LTC3554 LINER [Linear Technology], LTC3554 Datasheet - Page 36

• Manufacturer Part Number: LTC3554
• Description: Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
LTC3554
PART
NUMBER
LTC3455
LTC3456
LTC3550
LTC3552
LTC3552-1
LTC3557
LTC3559
LTC3577
LTC4080
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
Standalone Linear Li-Ion Battery Charger
with Dual Synchronous Buck Converter
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
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
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
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
Triple Step-Down Switching Regulators (600mA, 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 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
High Integration USB Power Management Solution for Portable Products
Charges Single-Cell Li-Ion Batteries, Timer Termination + C/10, Thermal Regulation, Buck
Output: 0.8V to V
BATT(MIN)
, Hot Swap Output for Memory Cards, Power Supply Sequencing: Main and
BAT
, Buck Input V
TM
Output for SDIO and Memory Cards, 4mm × 4mm QFN-24
IN
: 2.7V to 5.5V, 3mm × 3mm DFN-10 Package
© LINEAR TECHNOLOGY CORPORATION 2009
LT 0509 • PRINTED IN USA
3554f