LTC1435
TYPICAL PERFORMANCE CHARACTERISTICS
W
U
EXTVCC Switch Drop
vs INTVCC Load Current
Input Supply and Shutdown
Current vs Input Voltage
INTVCC Regulation
vs INTVCC Load Current
2.5
2.0
1.5
1.0
100
80
200
180
160
140
120
100
80
0.5
0.3
V
= 0V
EXTVCC
70°C
V
= 5V
OUT
25°C
60
70°C
25°C
EXTV = V
CC
OUT
0
–55°C
V
OUT
= 3.3V
40
EXTV = OPEN
CC
60
–0.3
–0.5
40
0.5
0
20
0
20
SHUTDOWN
10
INPUT VOLTAGE (V)
0
0
15
20
25
30
0
2
4
6
12 14 16 18 20
5
10
INTV LOAD CURRENT (mA)
8
10
0
15
20
5
INTV LOAD CURRENT (mA)
CC
CC
1435 G07
1435 G09
1435 G08
Normalized Oscillator Frequency
vs Temperature
RUN/SS Pin Current
vs Temperature
SFB Pin Current vs Temperature
10
5
0
–0.25
–0.50
–0.75
4
3
2
1
f
O
–1.00
–1.25
–1.50
–5
–10
0
60
TEMPERATURE (°C)
110 135
–40 –15 10
35
60
85 110 135
60
TEMPERATURE (°C)
110 135
–40 –15
10
35
85
–40 –15
10
35
85
TEMPERATURE (°C)
1435 G10
1435 G11
1435 G12
Maximum Current Sense
Threshold Voltage vs Temperature
Transient Response
Transient Response
154
152
150
148
VOUT
50mV/DIV
VOUT
50mV/DIV
ILOAD = 1A to 3A
1435 G15
I
LOAD = 50mA to 1A
1435 G14
146
–40 –15 10
35
60
85 110 135
TEMPERATURE (°C)
1435 G13
4
Linear [ Linear ]
