LTC3808 Datasheet, PDF (6/28 Pages) Linear Technology – No RSENSE TM, Low EMI, Synchronous DC/DC Controller with Output Tracking

LTC3808
TYPICAL PERFOR A CE CHARACTERISTICS T_A = 25°C unless otherwise noted.
SYNC/MODE Pull-Down Current
vs Temperature
2.80
2.75
2.70
2.65
2.60
2.55
2.50
2.45
2.40
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
3808 G18
Shutdown Quiescent Current vs
Input Voltage
18
16
14
12
10
8
6
4
2
0
2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3808 G21
Oscillator Frequency vs
Temperature
10
8
6
4
2
0
–2
–4
–6
–8
–10
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
3808 G19
Sleep Current vs Input Voltage
130
120
110
100
90
80
70
2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3808 G22
Oscillator Frequency vs Input
Voltage
5
4
3
2
1
0
–1
–2
–3
–4
–5
2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3808 G20
TRACK/SS Start-Up Current vs
TRACK/SS Voltage
1.04
1.00
0.96
0.92
0.88
0.84
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7
TRACK/SS VOLTAGE (V)
3808 G24
3808f
6