LTC1735I-1 Linear Technology, LTC1735I-1 Datasheet - Page 6

• Manufacturer Part Number: LTC1735I-1
• Description: High Efficiency Synchronous Step-Down Switching Regulator
• Manufacturer: Linear Technology

LTC1735-1
TYPICAL PERFOR A CE CHARACTERISTICS
20mV/DIV
6
V
300
290
280
270
260
250
1V/DIV
5V/DIV
5A/DIV
5A/DIV
RUN/SS
V
V
OUT
OUT
–40 –15
I
I
Oscillator Frequency
vs Temperature
L
L
C
OSC
Start-Up
V
V
R
V
(Burst Mode Operation)
V
V
I
IN
OUT
LOAD
IN
OUT
OUT(RIPPLE)
LOAD
= 15V
= 15V
= 47pF
= 1.6V
= 1.6V
= 0.16
= 1.5A
10
TEMPERATURE ( C)
35
5ms/DIV
5 s/DIV
60
85
W
110
FIGURE 1
1735-1 G19
1735-1 G22
1735-1 G25
U
135
10mV/DIV
50mV/DIV
5A/DIV
5A/DIV
V
V
–2
–1
–3
–4
–5
OUT
OUT
0
I
I
–40 –15
L
L
RUN/SS Pin Current
vs Temperature
V
V
EXT SYNC f = f
V
V
Load Step
(Burst Mode Operation)
10mA TO
11A LOAD STEP
V
V
RUN/SS
IN
OUT
IN
OUT
I
OUT(RIPPLE)
LOAD
= 15V
= 15V
= 1.6V
= 1.6V
= 10mA
= 0V
10
TEMPERATURE ( C)
O
35
(Synchronized)
10 s/DIV
10 s/DIV
60
85
FIGURE 1
FIGURE 1
110
1735-1 G20
1735-1 G23
1735-1 G26
135
20mV/DIV
50mV/DIV
5A/DIV
5A/DIV
–0.4
–0.2
–0.6
–0.8
–1.0
V
V
OUT
OUT
0
–40 –15
I
I
L
L
PGOOD Pin Current
vs Temperature
V
V
(Burst Mode Operation)
V
V
Load Step (Continuous Mode)
0A TO
11A LOAD STEP
PGOOD = 0V
V
V
PGOOD
IN
OUT
IN
OUT
OUT(RIPPLE)
I
LOAD
= 15V
= 15V
= 1.6V
= 1.6V
= 0.85V
= 50mA
10
TEMPERATURE ( C)
35
50 s/DIV
10 s/DIV
60
85
FIGURE 1
FIGURE 1
110
1735-1 G21
1735-1 G24
1735-1 G27
135