Datasheet

0.01 0.1 1 10 100 1000
f - Frequency - kHz
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
PSRR - Power Supply Rejection Ratio - dB
I = 10 mA
PFM Operation
O
I = 400 mA
PWM Operation
O
I = 150 mA
PWM Operation
O
V = 3.6 V,
V = 1.8 V (TPS82671)
I
O
MODE = Low
V = 3.6 V,
V = 1.8 V (TPS82671),
I
O
R = 100
L
Ω
6
5.5
5
4.5
4
3.5
3
2.5
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
V - Input Voltage - V
I
f - Switching Frequency - MHz
S
I = 150 mA
O
I = 500 mA
O
I = 400 mA
O
I = 300 mA
O
V = 1.8 V
O
MODE = Low
V = 3.6 V,
V = 1.8 V (TPS82671),
I
O
I = 0 mA
O
TPS82670, TPS82671, TPS82672, TPS82673, TPS82674
TPS82675, TPS82676, TPS82677, TPS826711, TPS826745, TPS826765
www.ti.com SLVSAI0F –OCTOBER 2010–REVISED NOVEMBER 2012
TYPICAL CHARACTERISTICS (continued)
PWM SWITCHING FREQUENCY
vs
INPUT VOLTAGE START-UP
Figure 33. Figure 34.
POWER SUPPLY REJECTION RATIO
vs
START-UP FREQUENCY
Figure 35. Figure 36.
Copyright © 2010–2012, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Links: TPS82670 TPS82671 TPS82672 TPS82673 TPS82674 TPS82675 TPS82676 TPS82677
TPS826711 TPS826745 TPS826765