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参数资料
| 型号： | TPS54872PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | GREEN, PLASTIC, HTSSOP-28 |
| 文件页数： | 12/21页 |
| 文件大小： | 588K |
| 代理商： | TPS54872PWP |
TPS54872
SLVS436C JULY 2002 REVISED FEBRUARY 2005
www.ti.com
2
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
TA
REFIN VOLTAGE
PACKAGE
PART NUMBER
40
°C to 85°C
0.2 V to 1.75 V
Plastic HTSSOP (PWP)(1)
TPS54872PWP
(1) The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54872PWPR). See the application section of
the data sheet for PowerPAD drawing and layout information.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website
at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
TPS54872
UNITS
VIN, ENA
0.3 V to 7
Input voltage range, VI
RT
0.3 V to 6
V
Input voltage range, VI
VSENSE, REFIN
0.3 V to 4
V
BOOT
0.3 V to 17
Output voltage range, VO
VBIAS, COMP, STATUS
0.3 V to 7
V
Output voltage range, VO
PH
0.6 V to 10
V
Source current, IO
PH
Internally Limited
Source current, IO
COMP, VBIAS
6
mA
PH
12
A
Sink current, IS
COMP
6
mA
Sink current, IS
ENA, STATUS
10
mA
Voltage differential
AGND to PGND
±0.3
V
Operating virtual junction temperature range, TJ
40 to 125
°C
Storage temperature, Tstg
65 to 150
°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
300
°C
(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
MIN
NOM
MAX
UNIT
Input voltage, VI
4
6
V
Operating junction temperature, TJ
40
125
°C
DISSIPATION RATINGS(1)(2)
PACKAGE
THERMAL IMPEDANCE
JUNCTION-TO-AMBIENT
TA =25°C
POWER RATING
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
28 Pin PWP with solder
14.4
°C/W
6.94 W(3)
3.81 W
2.77 W
28 Pin PWP without solder
27.9
°C/W
3.58 W
1.97 W
1.43 W
(1) For more information on the PWP package, refer to TI technical brief, literature number SLMA002.
(2) Test board conditions:
1. 3” x 3”, 4 layers, thickness: 0.062”
2. 1.5 oz. copper traces located on the top of the PCB
3. 1.5 oz. copper ground plane on the bottom of the PCB
4. 12 thermal vias (see Recommended Land Pattern in applications section of this data sheet)
(3) Maximum power dissipation may be limited by overcurrent protection.
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