LTC3453 LINER [Linear Technology], LTC3453 Datasheet - Page 12

• Manufacturer Part Number: LTC3453
• Description: Synchronous Buck-Boost High Power White LED Driver
• Manufacturer: LINER [Linear Technology]

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TYPICAL APPLICATIO
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
1-CELL
Li-Ion
0.1µF
DESCRIPTION
Constant Current, Constant Voltage 1.4MHz, High Efficiency
Boost Regulator
DC/DC Converter
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
High Efficiency, Multi-Display LED Controller
1A Low Noise High Current LED Charge Pump with
Independent Flash/Torch Current
600mA/1.2A I
DC/DC Converter
600mA/1.2A I
DC/DC Converter
1A Synchronous Buck-Boost High Power LED Driver
Boost Regulator with Integrated Schottky Diode
Dual Constant Current, 2MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
3A, Full Featured DC/DC Converter with Soft-Start and
Inrush Current Protection
V
10.2k
IN
SW
), 1.2MHz/2.2MHz, High Efficiency Step-Up
●
FAX: [phone]
2.2µF
EN
OUT
OUT
, 2MHz/1MHz, Synchronous Buck-Boost
, 600kHz, Synchronous Buck-Boost
I
I
SET1
SET2
EN1
EN2
V
C
U
V
●
IN
www.linear.com
PV
GND
IN
High Efficiency 4 White LED Driver
BUCK-BOOST
SW1
4.7µH
1MHz
GND
SW2
PGND
V
OUT
LTC3453
3453 TA02
COMMENTS
V
MS10 Package/EDD Package
V
ThinSOT Package
V
ThinSOT Package
V
ThinSOT Package/SC70 Package
V
QFN-24 Package
V
DFN Package
V
MS-10 Package/DFN Package
V
DFN Package
V
ThinSOT Package
V
DFN Package
V
DFN Package/TSOPP Package
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
: 1.6V to 18V, V
: 2.6V to 16V, V
: 1V to 10V, V
: 2.5V to 10V, V
: 2.8V to 4.5V, V
: 2.9V to 4.4V, V
: 2.4V to 5.5V, V
: 2.4V to 5.5V, V
: 2.7V to 5.5V, 1MHz, I
: 2.7V to 16V, V
: 2.7V to 24V, V
: 2.5V to 24V, V
LED1
LED2
LED3
LED4
4.7µF
D1 TO D4: NICHIA NSCW100
L1: VISHAY DALE IDCS-2512
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
30mA
D1
SD
= 34V, I
= 34V, I
= 34V, I
= 34V, I
= 34V, I
= 40V, I
= 40V, I
= 6V, I
= 5.5V, I
= 5.25V, I
= 5.25V, I
< 6µA, DFN Package
30mA
D2
© LINEAR TECHNOLOGY CORPORATION 2005
Q
Q
Q
Q
= 1.2mA, I
Q
Q
Q
Q
= 50µA, I
Q
= 1.8mA, I
= 4.2mA/5.5mA, I
= 1.9mA, I
= 1.9mA, I
= 5mA, I
= 6.5mA, I
Q
Q
= 300µA, I
30mA
D3
= 25µA/50µA, I
= 28µA, I
LT 0206 REV A • PRINTED IN USA
SD
SD
SD
SD
SD
SD
SD
= <1µA,
= <1µA,
SD
SD
= <16µA,
30mA
D4
= <1µA,
= <1µA,
= <1µA,
= <1µA,
= <2.5µA,
= <1µA,
SD
SD
= <1µA,
= <1µA,
3453fa