Datasheet

TPS6734I
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
SLVS127A – AUGUST 1995 – REVISED JANUARY 1999
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
8
6
2
0
012345
Voltage – V
10
14
t – Time – mS
EN RESPONSE TIME
6789
4
12
Output
Voltage
EN Voltage
V
I
= 5 V
V
O
= 5 V to 12 V
I
L
= 120 mA at 12 V
170
160
150
140
34 5
– Oscillator Frequency – kHz
180
190
OSCILLATOR FREQUENCY
vs
SUPPLY VOLTAGE
200
67 9
108
F
osc
V
CC
– Supply Voltage – V
Figure 4 Figure 5
10
6
4
0
0.1 0.5 0.9 1.3 1.7 2.1 2.5
– Input Supply Current – mA
12
16
INPUT SUPPLY CURRENT
vs
SUPPLY VOLTAGE
18
2.9 4.5 6.5 8.5
14
8
2
Bootstrap
Typical
I
O
= 0
I
CC
V
CC
– Supply Voltage – V
120
60
40
0
3 3.5 4
– Maximum Output Current – mA
140
160
MAXIMUM OUTPUT CURRENT
vs
SUPPLY VOLTAGE
180
4.5 5
100
80
20
I
O
V
CC
– Supply Voltage – V
Figure 6 Figure 7