LM34919C-Q1 Datasheet, PDF (11/29 Pages) Texas Instruments – LM34919C-Q1 Ultra Small 50V, 600 mA Constant On-Time Buck Switching Regulator

LM34919C-Q1
www.ti.com
SNVS831A – SEPTEMBER 2013 – REVISED DECEMBER 2013
Typical Performance Characteristics (continued)
Minimum Off-Time vs. Temperature
On-Time vs. Temperature
150
400
145
140
300
135
130
125
200
120
115
110
105
Vin = 12V
100
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C007
Current Limit Threshold vs. Temperature
0.80
100
RON = 100k
VIN = 12V
0
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C002
EN Pin Threshold vs. Temperature
3.0
EN Rising
0.75
2.5
EN Falling
0.70
2.0
0.65
1.5
0.60
1.0
0.55
0.5
VIN = 12V
0.50
±50 ±25 0
25 50 75 100 125 150
0.0
±50 ±25 0
25 50 75 100 125 150
JUNCTION TEMPERATURE (|C)
C003
JUNCTION TEMPERATURE (|C)
C004
PGD vs. Sink Current
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
2
4
6
8
10
PGD SINK CURRENT (mA)
C005
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