lt3471edd-trpbf Linear Technology Corporation, lt3471edd-trpbf Datasheet - Page 3

• Manufacturer Part Number: lt3471edd-trpbf
• Description: Dual 1.3a, 1.2mhz Boost/inverter In 3mm ? 3mm Dfn
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
CURRENT
SHDN/SS
20µV/DIV
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
2.2
1.6
2.6
2.4
2.0
1.8
–50 –25
–50
Quiescent Current
vs Temperature
Oscillator Frequency
vs Temperature
SHDN/SS Current
vs SHDN/SS Voltage
–25
0
SHDN/SS VOLTAGE 1V/DIV
0
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
50
50
V
IN
75
75
= 3.3V
V
IN
W
> V
100
100
SHDN/SS
3471 G01
3471 G07
U
3741 G04
125
125
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.990
1.010
1.005
1.000
0.995
0
Peak Switch Current
vs SHDN/SS Voltage
0
T
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
A
–50 –25
0
0.2
V
= 25°C
0
Current Limit vs Duty Cycle
REF
0.4
Voltage vs Temperature
0.6
20
V
0
0.8
TEMPERATURE (°C)
SHDN/SS
DUTY CYCLE (%)
1
25
40
TYPICAL
1.2 1.4
(V)
50
GUARANTEED
60
1.6
75
1.8
3471 G08
T
80
100
A
= 25°C
3471 G02
2.0
3471 G05
125
CONTROL 1 AND 2
100
100mV/DIV
VOLTAGE
I
1A/DIV
2V/DIV
5V/DIV
5V/DIV
SUPPLY
V
V
OUT1
OUT2
800
700
600
500
400
300
200
100
V
REF
0
Switch Saturation Voltage
vs Switch Current
Start-Up Waveform
(Figure 2 Circuit)
0
V
REF
0.2
0.4
Voltage vs V
V
0.6
REF
SW CURRENT (A)
CURRENT 200µA/DIV
0.8
0.5ms/DIV
1.0
REF
1.2
LT3471
Current
1.4
90°C
1.6
1.8
3471 G09
25°C
3471 G06
3471fa
3
3741 G03
2.0