lt3466efe-trpbf Linear Technology Corporation, lt3466efe-trpbf Datasheet - Page 3

• Manufacturer Part Number: lt3466efe-trpbf
• Description: White Led Driver And Boost Converter In 3mm X 3mm Dfn Package
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
PARAMETER
V
V
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 LTC3466-1E 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
OUT1
OUT2
Overvoltage Threshold
Overvoltage Threshold
(AC-COUPLED)
100mV/DIV
100mA/DIV
20V/DIV
V
V
OUT1
SW1
I
250
200
150
100
L1
50
0
Switching Waveforms
(LED Driver)
V
6 LEDs AT 20mA
CIRCUIT OF FIGURE 1
IN
0
V
V
6 LEDs
= 3.6V
FB1
IN
= 3.6V
vs V
0.5
CTRL1
W
0.5µs/DIV
V
CTRL1
1
U
(V)
A
= 25°C. V
1.5
CONDITIONS
I
I
V
V
SCHOTTKY1
SCHOTTKY2
34661 G03
OUT1
OUT2
34661 G01
IN
= 3V, V
2
= 20V
= 20V
= 300mA
= 300mA
The
CTRL1
●
denotes specifications that apply over the full operating temperature
= 3V, V
Note 3: Current flows out of the pin.
Note 4: Guaranteed by design and test correlation, not production tested.
(AC-COUPLED)
CTRL2
100mV/DIV
100mA/DIV
20V/DIV
= 3V, unless otherwise specified.
V
V
900
800
700
600
500
400
300
200
100
OUT2
SW2
I
0
L2
T
0
A
V
Switching Waveforms
(Boost Converter)
V
V
CIRCUIT OF FIGURE 1
V
V
IN
OUT2
FB2
= 25°C unless otherwise specified
IN
OUT2
= 3.6V
= 3.6V
= 16V/30mA
vs V
= 16V
0.5
CTRL2
V
CTRL2
0.5µs/DIV
1
MIN
(V)
1.5
39.5
39.5
0.85
0.85
TYP
600
600
34661 G16
34661 G02
LT3466-1
2
MAX
5
5
UNITS
34661f
3
µA
µA
µs
µs
V
V
V
V