LTC3892-1_15 Datasheet, PDF (9/36 Pages) Linear Technology – 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

Typical Performance Characteristics
LTC3892/LTC3892-1
DRV_CC Line Regulation
11
DRVSET = INTV_CC
10
9
8
7
DRVSET = GND
6
5
0 5 10 15 20 25 30 35 40 45 50 55 60 65
INPUT VOLTAGE (V)
3892 G19
Quiescent Current vs Temperature
80
V_IN=12V
70 ^{ONE CHANNEL ON}
Burst Mode OPERATION
60
DRVSET = 70kΩ
50
40
DRVSET=INTV_CC
30
DRVSET=GND
20
10
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3899 G22
Shutdown Current vs Temperature
8
V_IN = 12V
7
6
5
4
3
2
1
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3892 G20
Oscillator Frequency vs
Temperature
600
FREQ = INTV_CC
550
500
450
350
FREQ = GND
300
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3892 G23
Shutdown Current vs
Input Voltage
14
12
10
8
6
4
2
0
0 10 20 30 40 50 60 70
INPUT VOLTAGE (V)
3892 G21
TRACK/SS Pull-Up Current vs
Temperature
12
11.5
11
10.5
10
9.5
9
8.5
8
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3892 G24
For more information www.linear.com/LTC3892
38921f
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