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Part Name
Description
LT3461A View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT3461A
1.3MHz/3MHz Step-Up DC/DC Converters with Integrated Schottky in ThinSOT
Linear Technology
LT3461A Datasheet PDF : 8 Pages
1
2
3
4
5
6
7
8
TYPICAL PERFOR A CE CHARACTERISTICS
LT3461/LT3461A
Oscillator Frequency (LT3461)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
–40 –20
0 20 40 60
TEMPERATURE (
°
C)
80 100
3461a G01
Current Limit
480
T
A
= 25
°
C
360
240
120
0
10 20 30 40 50 60 70 80 90
DUTY CYCLE (%)
3461a G02
FB Pin Voltage
1.28
1.27
1.26
1.25
1.24
1.23
1.22
–40 –20
0 20 40 60
TEMPERATURE (
°
C)
80 100
3461a G03
Oscillator Frequency (LT3461A)
3.9
3.6
3.3
3.0
2.7
2.4
2.1
–60 –40 –20 0 20 40 60
TEMPERATURE (
°
C)
80 100
3461a G04
Switching Waveform
Circuit of Figure 4
V
SW
5V/DIV
V
OUT
50mV/DIV
I
LOAD
= 60mA
0.2
µ
s/DIV
Current Limit in Soft-Start Mode
480
T
A
= 25
°
C
420
360
300
240
180
120
60
0
1.3
1.5
1.7
1.9
2.1 2.3
SHDN PIN VOLTAGE (V)
3461a G05
SHDN Pin Current
320
T
A
= 25
°
C
280
240
200
160
120
80
40
0
0
4
8
12
16
SHDN PIN VOLTAGE (V)
3461a G06
Load Transient Response
Circuit of Figure 4
I
LOAD
70mA
35mA
3461a G08
V
OUT
100mV/DIV
50
µ
s/DIV
3461a G09
3461af
3
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