LM34919C-Q1 Datasheet, PDF (8/29 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
Efficiency at 2.1 MHz, V_OUT = 3.3 V
90
Efficiency at 250 kHz, V_OUT = 3.3 V
95
90
80
85
70
60
0.2
95
Vin = 6V
Vin = 9V
Vin = 12V
Vin = 18V
0.3
0.4
0.5
0.6
LOAD CURRENT (A)
C002
Efficiency at 2.1 MHz, V_OUT = 5 V
80
75
70
0.2
10
Vin = 4.5V
Vin = 6V
Vin = 9V
Vin = 12V
Vin = 18V
Vin = 24V
0.3
0.4
0.5
0.6
LOAD CURRENT (A)
C002
V_CC vs. V_IN
8
85
6
75
65
0.2
8
7
6
Vin = 9V
Vin = 12V
Vin = 18V
Vin = 24V
0.3
0.4
0.5
0.6
LOAD CURRENT (A)
C003
V_CC vs. I_CC
Vin = 4.5V
Vin = 12V
5
4
3
2
1 Vcc Externally Loaded
Fsw = 2 MHz
0
0
5
10
15
20
25
30
ICC (mA)
C005
4
2
0
0
10
5 10 15 20 25 30 35 40 45 50
INPUT VOLTAGE (V)
C004
I_CC vs. Externally Applied V_CC
8
6
4
2
Fsw = 2 MHz
0
7
8
9
10
11
12
13
14
APPLIED VCC (V)
C006
8
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