LTC3862 LINER [Linear Technology], LTC3862 Datasheet - Page 8

• Manufacturer Part Number: LTC3862
• Description: Multi-Phase Current Mode Step-Up DC/DC Controller
• Manufacturer: LINER [Linear Technology]

LTC3862
TYPICAL PERFORMANCE CHARACTERISTICS
8
1.229
1.227
1.225
1.233
1.231
1.223
1.221
1.219
1.217
1.215
1.213
1.211
1.235
315
310
305
300
295
290
285
280
320
–50
0
Oscillator Frequency vs
Input Voltage
Frequency Voltage vs
Temperature
–25
4
8
0
INPUT VOLTAGE (V)
TEMPERATURE (°C)
12
1V/DIV
25
GATE
16
50
Gate Turn-On Waveform Driving
Renesas HAT2266
V
V
I
MOSFET RENESAS HAT2266
OUT
IN
OUT
20
= 12V
75
= 1A
= 48V
24
100
28
125
32
3862 G27
3862 G30
20ns/DIV
150
36
1000
100
400
350
300
250
150
100
200
10
–50
0
R
Minimum On-Time vs
Temperature
3862 G33
FREQ
100
–25
200
vs Frequency
0
300
TEMPERATURE (°C)
FREQUENCY (kHz)
BLANK = FLOAT
BLANK = SGND
25
400
BLANK = 3V8
500
50
600
75
1V/DIV
700
GATE
100
800
Gate Turn-Off Waveform Driving
Renesas HAT2266
V
V
I
MOSFET RENESAS HAT2266
OUT
125
IN
OUT
900
3862 G28
3862 G31
= 12V
= 1A
1000
= 48V
150
1400
1200
1000
20ns/DIV
250
800
600
400
200
400
350
300
150
100
200
0
0
4
Frequency vs PLLFLTR Voltage
Minimum On-Time vs
Input Voltage
8
0.5
12
PLLFLTR VOLTAGE (V)
INPUT VOLTAGE (V)
BLANK = FLOAT
BLANK = SGND
16
BLANK = 3V8
3862 G34
1
20
1.5
24
28
2
32
3862 G29
3862 G32
3862fb
2.5
36