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 2/26

Download datasheet (863Kb)Embed
PrevNext
TPS54073
SLVS547 – FEBRUARY 2005
............................................................................................................................................................................................
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ORDERING INFORMATION
T
OUTPUT VOLTAGE
A
–40°C to 85°C
Adjustible down to 0.9 V
(1) The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54073PWPR). See the application
section of the data sheet for PowerPAD drawing and layout information.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
V
Input voltage range
I
V
Output voltage range
O
V
Source current
O
I
Sink current
S
Voltage differential
T
Operating junction temperature range
J
T
Storage temperature range
stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
(1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
V
Input voltage, VIN
I
Power Input voltage, PVIN
T
Operating junction temperature
J
(1) (2)
DISSIPATION RATINGS
THERMAL IMPEDANCE
PACKAGE
JUNCTION-TO-AMBIENT
28-Pin PWP with solder
(4)
28-Pin PWP without solder
(1) For more information on the PWP package, see TI technical brief, literature number SLMA002.
(2) Test board conditions:
a. 3 inch × 3 inch, 4 layers, thickness = 0.062 inch
b. 2-ounce copper traces located on die top of the PCB.
c. 2-ounce copper mixed plane and traces on the bottom of the PCB.
d. 2-ounce copper ground planes on the two internal layers of the PCB.
e. 12 thermal vias (see the
Figure 11
(3) Maximum power dissipation may be limited by over current protection.
(4) Estimated performance
2
Submit Documentation Feedback
PACKAGE
Plastic HTSSOP (PWP)
(1)
SS/ENA, SYNC
RT
VSENSE
PVIN, VIN
BOOT
VBIAS, COMP, PWRGD
PH
PH
COMP, VBIAS
PH
COMP
SS/ENA, PWRGD
AGND to PGND
T
= 25°C
A
POWER RATING
(3)
14.87°C/W
6.72 W
27.9°C/W
3.58 W
in the Application Section of this data sheet.
Product Folder Link(s):
TPS54073
www.ti.com
PART NUMBER
(1)
TPS54073PWP
TPS54073
UNIT
–0.3 to 7
–0.3 to 6
–0.3 to 4
V
–0.3 to 4.5
–0.3 to 10
–0.3 to 7
V
–0.6 to 6
Internally limited
6
mA
25
A
6
mA
10
±0.3
V
–40 to 125
°C
–65 to 150
°C
300
°C
MIN
NOM
MAX
UNIT
3
4
V
2.2
4
V
–40
125
C
T
= 70°C
T
= 85°C
A
A
POWER RATING
POWER RATING
3.69 W
2.69 W
1.97 W
1.43 W
Copyright © 2005, Texas Instruments Incorporated