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參數資料
| 型號： | TPS51220ARTVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 333 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封裝： | 5 X 5 MM, PLASTIC, QFN-32 |
| 文件頁數： | 23/53頁 |
| 文件大小： | 1380K |
| 代理商： | TPS51220ARTVR |
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www.ti.com
SLUS897D – DECEMBER 2008 – REVISED FEBRUARY 2010
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
TPS51220A
UNIT
VIN
–0.3 to 34
VBST1, VBST2
–0.3 to 39
VBST1, VBST2(3)
–0.3 to 7
SW1, SW2
–7 to 34
Input voltage range (2)
V
CSP1, CSP2, CSN1, CSN2
–1 to 13.5
EN, EN1, EN2, VFB1, VFB2, TRIP, SKIPSEL1, SKIPSEL2, FUNC
–0.3 to 7
V5SW
–1 to 7
V5SW (to VREG5)(4)
–7 to 7
DRVH1, DRVH2
–7 to 39
V
DRVH1, DRVH2 (3)
–0.3 to 7
V
Output voltage range(2)
DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2,
–0.3 to 7
V
PGOOD1, PGOOD2
VREG3
–0.3 to 3.6
V
TJ
Junction temperature
150
°C
Tstg
Storage temperature
–55 to 150
°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.
(2)
All voltage values are with respect to the network ground terminal unless otherwise noted.
(3)
Voltage values are with respect to the corresponding SW terminal.
(4)
When EN is high and V5SW is grounded, or voltage is applied to V5SW when EN is low.
DISSIPATION RATINGS (2 oz. Trace and Copper Pad with Solder)
TA < 25°C
DERATING FACTOR
TA = 85°C
PACKAGE
POWER RATING
ABOVE TA = 25°C
POWER RATING
(W)
(mW/°C)
(W)
32-pin RTV
1.7
17
0.7
32-pin RSN
2.3
23
0.9
RECOMMENDED OPERATING CONDITIONS
MIN
TYP
MAX
UNIT
VIN
4.5
32
V
Supply voltage
V5SW
–0.8
6
VBST1, VBST2
–0.1
37
DRVH1, DRVH2
–4.
37
DRVH1, DRVH2 (wrt SW1, 2)
–0.1
6
DRVH1, DRVH2 (negative overshoot -6 V for t < 20% duration of the
-6
37
switching period)
SW1, SW2
–4.
32
I/O voltage
V
SW1, SW2 (negative overshoot -6 V for t < 20% duration of the
-6
32
switching period)
CSP1, CSP2, CSN1, CSN2
–0.8
13
EN, EN1, EN2, VFB1, VFB2, TRIP, DRVL1, DRVL2, COMP1, COMP2,
VREG5, RF, VREF2, PGOOD1, PGOOD2, SKIPSEL1, SKIPSEL2,
–0.1
6
FUNC
VREG3
–0.1
3.5
TA
Operating free-air temperature
–40
85
°C
Copyright 2008–2010, Texas Instruments Incorporated
3
Product Folder Link(s) :TPS51220A
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