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TPS65232A2 データシート(PDF) 9 Page - Texas Instruments

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部品番号 TPS65232A2
部品情報  TRIPLE BUCK POWER MANAGEMENT IC
PDF  32 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65232A2 データシート(HTML) 9 Page - Texas Instruments

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TPS65232
www.ti.com
SLVSA42 – FEBRUARY 2010
ELECTRICAL CHARACTERISTICS (continued)
VIN = 12 V ±5%, VINB2, VINB3 = 5 V ±5%, TJ = 0°C to 150°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IOUT
Output current
3000
mA
h
Efficiency
IO = 2 A, VOUT = 3.3V
95
%
Low-side MOSFET On resistance
32
RDS(ON)
VIN12V = 12 V
m
Ω
High-side MOSFET On resistance
36
ILIMIT
Switch current limit
5
A
Current limit accuracy
–30
30
%
Line regulation - DC
VINB = 4.75 V - 6.1 V,
VLINEREG
1
%
ΔVOUT/ΔVINB
IOUT = 1 A
Load regulation - DC
VLOADREG
IOUT = 10 – 90% IOUT,MAX
0.5
%/A
ΔVOUT/ΔIOUT
Feedback resistor tolerance
VOUTTOL
DC set tolerance
–2
2
%
not included
d
Duty cycle(2)
15
85
%
AMOD
Modulator gain
5
fSW
Switching frequency
1
MHz
COUT
Output capacitance
10(3)
47
mF
ESR
Capacitor ESR
50
m
Ω
L
Nominal inductance
2.2
mH
BUCK3
VOUT
Output voltage range(4)
0.9
3.3
V
VFB
Feedback voltage
–2%
0.804
2%
V
IOUT
Output current
3
A
h
Efficiency
IO = 2 A, VOUT = 1.2 V
86
%
Low-side MOSFET On resistance
32
RDS(ON)
VIN12V = 12 V
m
Ω
High-side MOSFET On resistance
36
ILIMIT
Switch current limit
5
A
Current limit accuracy
–30
30
%
Line regulation - DC
VINB = 4.75 V - 6.1 V,
VLINEREG
1
%
ΔVOUT/ΔVINB
IOUT = 1000 mA
Load regulation - DC
VLOADREG
IOUT = 10 – 90% IOUT,MAX
0.5
%/A
ΔVOUT/ΔIOUT
Feedback resistor tolerance
VOUTTOL
DC Set Tolerance
–2
2
%
not included
d
Duty cycle(5)
15
85
%
AMOD
Modulator gain
5
fSW
Switching frequency
1
MHz
COUT
Output capacitance
10
mF
ESR
Capacitor ESR
50
m
Ω
L
Nominal inductance
2.2
mH
(4)
Output voltage range is limited by the minimum and maximum duty cycle. VOUT(min) ~ d(min) x VINPUT and VOUT(max) ~ d(max) x
VINPUT.
(5)
Performance outside these limits is not guaranteed.
Copyright © 2010, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Link(s): TPS65232
Not Recommended for New Designs



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