As a member of the SWIFT™ family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components

TPS54073

Manufacturer Part NumberTPS54073
DescriptionAs a member of the SWIFT™ family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components
ManufacturerTexas Instruments
TPS54073 datasheet
 


Specifications of TPS54073

Iout(max)(a)14Vin(min)(v)2.2
Vin(max)(v)4Vout(min)(v)0.9
Vout(max)(v)2.5Iq(typ)(ma)13
Switching Frequency(max)(khz)700Switch Current Limit(typ)(a)14.5
TopologyBuckOperating Temperature Range(c)-40 to 85
Pin/package28HTSSOPDuty Cycle(max)(%)90
Regulated Outputs(#)1  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Page 7/26

Download datasheet (863Kb)Embed
PrevNext
www.ti.com
............................................................................................................................................................................................
TYPICAL CHARACTERISTICS (continued)
EXTERNALLY SET OSCILLATOR
FREQUENCY
vs
JUNCTION TEMPERATURE
800
700
RT = 68 k
600
500
RT = 100 k
400
300
RT = 180 k
200
−40
0
25
85
125
T
− Junction Temperature − C
J
Figure 4.
REFERENCE VOLTAGE
vs
INPUT VOLTAGE
0.895
PVIN = 2.5 V
0.893
0.891
0.889
0.887
0.885
3
3.1
3.2
3.3
3.4
3.5
V
− Input Voltage − V
I
Figure 7.
Copyright © 2005, Texas Instruments Incorporated
VOLTAGE REFERENCE
vs
JUNCTION TEMPERATURE
0.895
0.893
0.891
0.889
0.887
0.885
−40
0
25
85
T
− Junction Temperature − C
J
Figure 5.
ERROR AMPLIFIER
OPEN-LOOP RESPONSE
140
R
= 10 k ,
L
120
C
= 160 pF,
L
T
= 25 C
A
100
80
Phase
60
40
Gain
20
0
−20
1
10
100
1 k
10 k 100 k
1 M
10 M
3.6
f − Frequency − Hz
Figure 8.
Product Folder Link(s):
TPS54073
TPS54073
SLVS547 – FEBRUARY 2005
DEVICE POWER DISSIPATION
vs
OUTPUT CURRENT
5
o
T
= 25
C
A
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
2
4
6
8
10
12
125
I
- Output Current - A
O
Figure 6.
INTERNAL SLOWS-START TIME
vs
JUNCTION TEMPERATURE
0
3.80
VIN = 3.3 V,
−20
PVIN = 2.5 V
3.65
−40
3.50
−60
−80
3.35
−100
3.20
−120
−140
3.05
−160
2.90
−180
−200
2.75
−40
0
25
85
T
− Junction Temperature − C
J
Figure 9.
Submit Documentation Feedback
14
16
125
7