LT3466 Linear Technology, LT3466 Datasheet - Page 3

• Manufacturer Part Number: LT3466
• Description: Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
PARAMETER
Schottky 1 Forward Drop
Schottky 2 Forward Drop
Schottky 1 Reverse Leakage
Schottky 2 Reverse Leakage
Soft-Start Time (Switcher 1)
Soft-Start Time (Switcher 2)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3466E is guaranteed to meet specified performance from
0 C to 70 C. Specifications over the –40 C to 85 C operating range are
assured by design, characterization and correlation with statistical process
controls.
range, otherwise specifications are at T
TYPICAL PERFOR A CE CHARACTERISTICS
100mA/DIV
50mV/DIV
20V/DIV
V
V
OUT1
SW1
I
L1
Switching Waveforms
V
CIRCUIT OF FIGURE 1
IN
= 3.6V
0.5 s/DIV
W
U
3466 G01
A
= 25 C. V
200mA/DIV
CONDITIONS
I
I
V
V
SCHOTTKY1
SCHOTTKY2
0.5V/DIV
OUT1
OUT2
2V/DIV
V
IN
V
CTRL1
OUT1
= 3V, V
I
= 20V
= 20V
L1
Transient Response
V
I
CIRCUIT OF FIGURE 1
LED1
IN
= 300mA
= 300mA
= 3.6V
The
= 20mA TO 10mA
CTRL1
denotes specifications that apply over the full operating temperature
= 3V, V
Note 3: Current flows out of the pin.
5 s/DIV
CTRL2
= 3V, unless otherwise specified.
3466 G02
250
200
150
100
50
0
0
V
V
T
FB1,2
A
MIN
IN
= 25 C
= 3V
vs V
0.5
CONTROL VOLTAGE (V)
CTRL1,2
0.85
0.85
TYP
600
600
1
MAX
LT3466
5
5
1.5
UNITS
3466 G03
3
3466f
V
V
A
A
2
s
s