TPS65040_07 Datasheet, PDF (29/74 Pages) Texas Instruments – CLOCK- AND POWER-MANAGEMENT IC FOR RF SYSTEM

TPS65040
CLOCK DISTRIBUTION
SLVS708B – NOVEMBER 2006 – REVISED APRIL 2007
TYPICAL CHARACTERISTICS (continued)
WAVEFORMS
PHASE NOISE
SIN_SYSCLK1 STARTUP TIME
SIN_SYSCLK1 INPUT vs OUTPUT
SIN_SYSCLK2 STARTUP TIME
SIN_SYSCLK2 INPUT vs OUTPUT
SIN_SYSCLK3 STARTUP TIME
SIN_SYSCLK3 INPUT vs OUTPUT
SYSCLK_IN (VCTCXO output) Reference PHASE NOISE
SIN_SYSCLK1 PHASE NOISE
SIN_SYSCLK2 PHASE NOISE
SIN_SYSCLK3 PHASE NOISE
FIGURE
38
39
40
41
42
43
44
45
46
47
BUCK BOOST/EFFICIENCY
vs
OUTPUT CURRENT
100
90 VOUT = 0.8 V
80
VBAT = 3.1 V
70
60
VBAT = 3.8 V
50
40
VBAT = 4.5 V
30
20
10
0
0.001
0.010
0.100
1
I_O - Output Current - A
Figure 1.
BUCK BOOST/EFFICIENCY
vs
OUTPUT CURRENT
100
90 VOUT = 3.5 V
VBAT = 3.1 V
80
70
60
VBAT = 3.8 V
VBAT = 4.5 V
50
40
30
20
10
0
0.001
0.010
0.100
1
I_O - Output Current - A
Figure 3.
BUCK BOOST/EFFICIENCY
vs
OUTPUT CURRENT
100
90 ^{VOUT = 2.5 V}
VBAT = 3.1 V
80
VBAT = 3.8 V
70
60
50
40
VBAT = 4.5 V
30
20
10
0
0.001
0.010
0.100
1
I_O - Output Current - A
Figure 2.
BUCK BOOST/EFFICIENCY
vs
OUTPUT CURRENT
100
VOUT = 4.2 V
90
VBAT = 3.1 V
80
VBAT = 3.8 V
70
VBAT = 4.5 V
60
50
40
30
20
10
0
0.001
0.010
0.100
1
I_O - Output Current - A
Figure 4.
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