ltc3862gn-1 Linear Technology Corporation, ltc3862gn-1 Datasheet - Page 8

• Manufacturer Part Number: ltc3862gn-1
• Description: Multi-phase Current Mode Step-up Dc/dc Controller
• Manufacturer: Linear Technology Corporation

LTC3862-1
TYPICAL PERFORMANCE CHARACTERISTICS
8
1.231
1.229
1.227
1.225
1.221
1.211
1.235
1.233
1.223
1.219
1.217
1.215
1.213
320
315
310
305
300
295
290
285
280
–50
8
Oscillator Frequency
vs Input Voltage
Frequency Pin Voltage
vs Temperature
–25
12
0
2V/DIV
V
16
TEMPERATURE (°C)
INPUT VOLTAGE (V)
GATE
25
Gate Turn-On Waveform Driving
Renesas HAT2267H
20
V
V
I
LOAD
IN
OUT
50
= 24V
= 72V
= 0.25A
24
75
28
100
20ns/DIV
125
32
38621 G27
38621 G30
150
36
1000
100
430
380
330
280
180
130
230
10
38621 G33
–50
0
R
Minimum On-Time
vs Temperature
FREQ
100
–25
200
vs Frequency
0
300
TEMPERATURE (°C)
FREQUENCY (kHz)
BLANK = FLOAT
BLANK = SGND
25
400
BLANK = 3V8
500
50
600
2V/DIV
75
V
GATE
700
100
Gate Turn-Off Waveform Driving
Renesas HAT2267H
800
V
V
I
LOAD
IN
OUT
125
= 24V
900
38621 G28
38621 G31
= 72V
= 0.25A
1000
150
20ns/DIV
1400
1200
1000
280
430
380
330
180
130
800
600
400
200
230
0
8
0
Frequency vs PLLFLTR Voltage
Minimum On-Time
vs Input Voltage
12
0.5
16
PLLFLTR VOLTAGE (V)
INPUT VOLTAGE (V)
38621 G34
BLANK = FLOAT
BLANK = SGND
BLANK = 3V8
1
20
24
1.5
28
2
32
38621 G29
38621 G32
38621f
2.5
36