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TPS65261 Datasheet(PDF) 8 Page - Texas Instruments

No. de pieza TPS65261
Descripción Electrónicos  4.5V to 18V Input Voltage, 3A/2A/2A Output Current Triple Synchronous Step-Down Converter
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65261 Datasheet(HTML) 8 Page - Texas Instruments

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1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Output Load (A)
VIN=5V
VIN=12V
C006
V
IN = 5 V
V
IN = 12 V
1.190
1.194
1.198
1.202
1.206
1.210
4
6
8
10
12
14
16
18
Input Voltage (V)
IOUT=0.1A
IOUT=1.5A
IOUT=3.0A
C007
I
OUT = 0.1 A
I
OUT = 1.5 A
I
OUT = 3.0 A
1.180
1.185
1.190
1.195
1.200
1.205
1.210
1.215
1.220
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Output Load (A)
VIN=5V
VIN=12V
C004
V
IN = 5 V
V
IN = 12 V
3.27
3.28
3.29
3.30
3.31
3.32
3.33
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Output Load (A)
VIN=5V
VIN=12V
C005
V
IN = 5 V
V
IN = 12 V
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
Output Load (A)
PSM Mode, Vout = 1.2V
PSM Mode, VO = 3.3V
PSM Mode, VO = 5.0V
FCC Mode, VO = 1.2V
FCC Mode, VO = 3.3V
FCC Mode, VO = 5.0V
C002
PSM Mode, V
O = 1.2 V
PSM Mode, V
O = 3.3 V
PSM Mode, V
O = 5.0 V
FCC Mode, V
O = 1.2 V
FCC Mode, V
O = 3.3 V
FCC Mode, V
O = 5.0 V
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
Output Load (A)
PSM Mode, Vout = 1.8V
PSM Mode, Vout = 3.3V
PSM Mode, Vout = 5.0V
FCC Mode, Vout = 1.8V
FCC Mode, Vout = 3.3V
FCC Mode, Vout = 5.0V
C003
PSM Mode, V
O = 1.8 V
PSM Mode, V
O = 3.3 V
PSM Mode, V
O = 5.0 V
FCC Mode, V
O = 1.8 V
FCC Mode, V
O = 3.3 V
FCC Mode, V
O = 5.0 V
TPS65261, TPS65261-1
SLVSCD3B – DECEMBER 2013 – REVISED MAY 2014
www.ti.com
7.6 Typical Characteristics
TA = 25°C, VIN = 12 V, VOUT1 = 1.2 V, VOUT2 = 3.3 V, VOUT3 = 1.8 V, fSW = 600 kHz (unless otherwise noted)
Figure 1. BUCK 1 Efficiency
Figure 2. BUCK 2 Efficiency
VOUT = 1.2 V
VOUT = 3.3 V
Figure 3. BUCK1, PSM Mode, Load Regulation
Figure 4. BUCK2, PSM Mode, Load Regulation
VOUT = 1.8 V
VOUT = 1.2 V
Figure 5. BUCK3, PSM Mode, Load Regulation
Figure 6. BUCK1, PSM Mode, Line Regulation
8
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