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參數資料
| 型號： | TPS54973PWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數： | 12/22頁 |
| 文件大小： | 604K |
| 代理商： | TPS54973PWP |
TPS54973
SLVS453A FEBRUARY 2003 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
OUTPUT VOLTAGE
PACKAGE
PART NUMBER
40°C to 85°C
0.9 V to 2.5 V
Plastic HTSSOP (PWP)(1)
TPS54973PWP
(1) The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54973PWPR). 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)
TPS54973
VIN
0.3 V to 4.5 V
SS/ENA, SYNC
0.3 V to 7 V
Input voltage range, VI
RT
0.3 V to 6 V
Input voltage range, VI
VSENSE
0.3 V to 4V
BOOT
0.3 V to 10 V
Output voltage range V
VBIAS, COMP, PWRGD
0.3 V to 7 V
Output voltage range, VO
PH
0.6 V to 6 V
Source current I
PH
Internally limited
Source current, IO
COMP, VBIAS
6 mA
PH
16 A
Sink current, IS
COMP
6 mA
Sink current, IS
SS/ENA, PWRGD
10 mA
Voltage differential
AGND to PGND
±0.3 V
Operating virtual junction temperature range, TJ
40°C to 125°C
Storage temperature, Tstg
65°C 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
3
4
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. 0.5 oz. copper ground planes on the two internal layers
5. 12 thermal vias (see “Recommended Land Pattern” in applications section of this data sheet)
(3) Maximum power dissipation may be limited by over current protection.
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| TPS54973PWPG4 | 功能描述:直流/直流開關調節器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54973PWPR | 功能描述:直流/直流開關調節器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54973PWPRG4 | 功能描述:直流/直流開關調節器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54974 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL INPUT BUS (2.5V, 3.3V) 9-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs |
| TPS54974PWP | 功能描述:直流/直流開關調節器 Dl Inp Bus 3.3 2.5V 9A Output Synch Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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