LM34919C-Q1 Datasheet, PDF (10/29 Pages) Texas Instruments – LM34919C-Q1 Ultra Small 50V, 600 mA Constant On-Time Buck Switching Regulator

LM34919C-Q1
SNVS831A – SEPTEMBER 2013 – REVISED DECEMBER 2013
www.ti.com
Typical Performance Characteristics (continued)
Soft-Start Current vs. Temperature
Operating Current vs. Temperature
11.5
3.6
3.2
11.0
2.8
10.5
2.4
10.0
9.5
VIN = 12V
9.0
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C001
V_CC UVLO at Vin vs. Temperature
4.50
4.25
4.00
3.75
3.50
3.25
3.00
±50
40
Vin Increasing
Vin Decreasing
±25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C003
V_CC Current Limit vs. Temperature
35
2.0
1.6
1.2
Vin = 12V
0.8
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C008
V_CC Voltage vs. Temperature
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
±50
30
Vin = 12V
Vin = 4.5V
±25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C005
V_CC Output Impedence vs. Temperature
Vin = 8V
25
Vin = 4.5V
20
30
15
25
10
20
Vin = 12V
15
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C006
5
0
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C009
10
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