SC403 Datasheet, PDF (10/32 Pages) Semtech Corporation – 6A EcoSpeedTM Integrated FET Regulator with Programmable LDO

SC403
Typical Characteristics (continued)
Characteristics in this section are based on using the applicable Detailed Application Circuit.
Frequency vs. Load — Forced Continuous Mode
V_OUT = 1.5V, V_LDO = V_DD = ENL = 5V, EN/P5V is floating
400
350
300
VIN = 12V
VIN = 6V
250
200
VIN = 20V
150
100
50
0
0.001
0.010
0.100
IOUT (ADC)
1.000
10.000
Frequency vs. Load — PSAVE Mode
V_OUT = 1.5V, V_LDO = V_DD = EN/PSV= ENL = 5V
400
350
VIN = 12V
300
250
200
VIN = 6V
VIN = 20V
150
100
50
0
0.001
0.010
0.100
IOUT (ADC)
1.000
10.000
V_OUT vs. Line — Forced Continuous Mode
V_OUT = 1.5V, V_LDO = V_DD = ENL = 5V, EN/P5V is floating
1.575
150
1.550
125
1.525
100
VOUT
1.500
75
1.475
50
VPKPK
1.450
25
1.425
0
6.0
8.8
11.5 14.3 17.0 19.8 22.5 25.3 28.0
VIN (VDC)
Frequency vs. Line — FCM Mode
V_OUT = 1.5V, V_LDO = V_DD = ENL = 5V, EN/P5V is floating
400
350
300
250
200
150
100
50
0
6.0 8.8
11.5
14.3 17.0 19.8
VIN (VDC)
22.5 25.3 28.0
On Time vs. Line
V_OUT = 1.5V, V_LDO = V_DD = ENL = 5V, I_OUT = 0A
1200
1000
800
600
400
3.3V
5V
200
0
6.0
8.8
11.5 14.3 17.0 19.8 22.5 25.3 28.0
Input Voltage (V)
10