LTC3452 Linear Technology, LTC3452 Datasheet - Page 16

• Manufacturer Part Number: LTC3452
• Description: Synchronous Buck-Boost MAIN/CAMERA White LED Driver
• Manufacturer: Linear Technology

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TYPICAL APPLICATIO
PART NUMBER
LT1618
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LT1932
LT1937
LTC3205
LTC3215
LTC3216
LTC3440/
LTC3441
LTC3443
LTC3453
LTC3454
LT3465/LT3465A Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED V
LT3466
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LTC3452
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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
700mA Low Noise High Current LED Charge Pump
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
500mA Synchronous Buck-Boost High Power White
LED Driver
1A Synchronous Buck-Boost High Power White
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
EN
SW
EN
3V TO 5.5V
H
L
●
), 1.2MHz/2.2MHz, High Efficiency Step-Up
FAX: [phone]
V
IN
4.02k
OUT
OUT
0.1µF
I
10.2k
I
SETH
SETL
EN
EN
V
, 2MHz/1MHz, Synchronous Buck-Boost
, 600kHz, Synchronous Buck-Boost
H
C
L
2.2µF
4 × 20mA White LED Display + 2 × 150mA Camera Light Driver
GND
U
V
IN
PV
●
IN
www.linear.com
BUCK/BOOST
GND
LTC3452
SW1
4.7µH
1MHz
L
SW2
PGND
V
OUT
EXPOSED PAD
3452 TA02a
150mA
LED
LED
LED
LED
LED
LED
LED
D1
H1
H2
L1
L2
L3
L4
L5
, 20mA
, 20mA
, 20mA
, 20mA
, UNUSED
150mA
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
DFN Package
V
MS-10 Package/DFN Package
V
DFN Package
V
QFN-16 Package
V
DFN Package
ThinSOT Package
V
DFN Package
V
DFN Package/TSOPP Package
D2
IN
IN
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
: 2.9V to 4.4V, V
: 2.4V to 5.5V, V
: 2.4V to 5.5V, V
: 2.7V to 5.5V, V
: 2.7V to 5.5V, V
: 2.7V to 16V, V
: 2.7V to 24V, V
: 2.5V to 24V, V
D1, D2: AOT 2015
D3-D6: NICHIA NSCW100
L: COILCRAFT D03314-472
D3
OUT(MAX)
D4
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
D5
= 34V, I
= 34V, I
= 34V, I
= 34V, I
= 34V, I
= 40V, I
= 40V, I
= 6V, I
= 5.5V, I
= 5.5V, I
= 5.25V, I
= 5.25V, I
= 4.5V, I
= 5.15V, I
D6
© LINEAR TECHNOLOGY CORPORATION 2006
Q
Q
Q
Q
= 1.2mA, I
Q
Q
Q
Q
= 50µA, I
Q
Q
Q
= 1.8mA, I
= 4.2mA/5.5mA, I
= 1.9mA, I
= 1.9mA, I
= 5mA, I
= 6.5mA, I
Q
Q
Q
LOW
POWER
LED
BANK
= 300µA, I
= 300µA, I
= 600µA, I
www.DataSheet4U.com
= 25µA/50µA, I
= 28µA, I
= 825µA, I
4.7µF
LT 0406 • PRINTED IN THE USA
SD
SD
SD
SD
SD
SD
SD
= <1µA,
= <1µA,
= <16µA,
SD
SD
SD
SD
SD
= <1µA,
= <1µA,
= <1µA,
= <1µA,
= <2.5µA,
= <2.5µA,
= <1µA,
= 6µA,
= 0µA,
SD
SD
= <1µA,
= <1µA,
3452f