Datasheet

LT3461/LT3461A
3
3461af
TEMPERATURE (°C)
FB VOLTAGE (V)
1.28
1.27
1.26
1.25
1.24
1.23
1.22
3461a G03
DUTY CYCLE (%)
10
CURRENT LIMIT (mA)
9080604020
3461a G02
30
50
70
480
360
240
120
0
3461a G06
TEMPERATURE (°C)
–60 –40
FREQUENCY (MHz)
3.9
3.6
3.3
3.0
2.7
2.4
2.1
20 60
3461a G04
–20 0
40 80 100
SHDN PIN VOLTAGE (V)
1.3
CURRENT LIMIT (mA)
1.9
2.3
3461a G05
1.5 1.7 2.1
480
420
360
300
240
180
120
60
0
T
A
= 25°C
T
A
= 25°C
SHDN PIN VOLTAGE (V)
0
SHDN PIN CURRENT (µA)
16
4812
320
280
240
200
160
120
80
40
0
T
A
= 25°C
–40 20 60
–20 0
40 80 100
TEMPERATURE (°C)
FREQUENCY (MHz)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
3461a G01
–40 20 60
–20 0
40 80 100
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Oscillator Frequency (LT3461A)
Current Limit FB Pin Voltage
Current Limit in Soft-Start Mode
V
SW
5V/DIV
V
OUT
50mV/DIV
0.2µs/DIV
3461a G08
I
LOAD
= 60mA
70mA
V
OUT
100mV/DIV
50µs/DIV
3461a G09
I
LOAD
35mA
Switching Waveform
Circuit of Figure 4
Load Transient Response
Circuit of Figure 4
SHDN Pin Current
Oscillator Frequency (LT3461)