TLV62150ARGTR Datasheet, PDF (10/34 Pages) Texas Instruments – 4-17V 1A Step-Down Converter with DCS-Control

TLV62150, TLV62150A
SLVSB71B – FEBRUARY 2012 – REVISED JUNE 2013
STATIC DRAIN-SOURCE-RESISTANCE (R_DSon)
vs
INPUT VOLTAGE
200.0
180.0
160.0
140.0
120.0
85°C
125°C
100.0
80.0
60.0
25°C
−10°C
40.0
−40°C
20.0
0.0
0.0
3.0
6.0
9.0 12.0 15.0 18.0 20.0
Input Voltage (V)
G001
Figure 22. High-Side Switch Resistance
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
0.05
VOUT=3.3V,
0.04
L=2.2uH (XFL4020)
Cout=22uF
0.03
VIN=17V
0.02
0.01
VIN=5V
VIN=12V
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Output Current (A)
G000
Figure 24. Output Voltage Ripple
POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
100
90
VIN=5V
80
VIN=12V
70
VIN=17V
60
50
40
30
20
VOUT=3.3V, IOUT=1A
10
L=2.2uH (XFL4020)
Cin=10uF, Cout=22uF
0
10
100
1k
10k
100k
1M
Frequency (Hz)
G000
Figure 26. Power Supply Rejection Ratio, f_SW=2.5MHz
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STATIC DRAIN-SOURCE-RESISTANCE (R_DSon)
vs
INPUT VOLTAGE
100.0
80.0
60.0
85°C
40.0
25°C
−10°C
20.0
125°C
−40°C
0.0
0.0
3.0
6.0
9.0 12.0 15.0 18.0 20.0
Input Voltage (V)
G001
Figure 23. Low-Side Switch Resistance
OUTPUT CURRENT
vs
INPUT VOLTAGE
3
2.5
2
−40°C
25°C
1.5
1
0.5
0
4
85°C
VOUT=3.3V
L=2.2uH (XFL4020)
Cout=22uF
5 6 7 8 9 10 11 12 13 14 15 16 17
Input Voltage (V)
G000
Figure 25. Maximum Output Current
POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
100
90
VIN=12V
80
VIN=5V
70
VIN=17V
60
50
40
30
20
VOUT=3.3V, IOUT=0.1A
10
L=2.2uH (XFL4020)
Cin=10uF, Cout=22uF
0
10
100
1k
10k
100k
1M
Frequency (Hz)
G000
Figure 27. Power Supply Rejection Ratio, f_SW=2.5MHz
10
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