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參數資料
| 型號： | TPS5120QDBTRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 1.5 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO30 |
| 封裝： | PLASTIC, SM8-30 |
| 文件頁數： | 20/21頁 |
| 文件大小： | 320K |
| 代理商： | TPS5120QDBTRQ1 |
TPS5120Q1
DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER
SGLS225B JANUARY 2004 REVISED APRIL 2008
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, VCC (see Note 1)
0.3 V to 30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage: INV1, INV2, CT, PWM/SKIP, REG5V_IN, SOFTSTART1, SOFTSTART2,
0.3 V to 7 V
. . . . .
FLT, POWERGOOD
0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STBY1, STBY2, 5V_STBY, TRIP1, TRIP2
0.3 V to 30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage: LL1, LL2
1.0 V to 30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT1_u, OUT2_u
1.0 V to 35 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LH1, LH2
0.3 V to 35 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT1_d, OUT2_d, 5V_OUT, FB1, FB2
0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REF
0.3 V to 3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT1_u, LH1 to LL1
0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT2_u, LH2 to LL2
0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation (TA ≤ 25°C), PD
874 mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate Leakage Test Results
±50 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, TJ
40
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
55
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTES:
1. All voltage values are with respect to the network ground terminal unless otherwise noted.
2. This rating is specified at duty = 10% on output rise and fall each pulse. Each pulse width (rise and fall) for the peak current should
not exceed 2
s.
3. See Dissipation Rating Table for free-air temperature range above 25
°C.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
POWER DISSIPATION
TA = 85°C
DBT
874 mW
6.993 mW/
°C
454 mW
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC
4.5
28
V
INV1, INV2, CT, PWM/SKIP, SOFTSTART1, SOFTSTART2, FLT
6
REG5V_IN, POWERGOOD
0.1
5.5
Input voltage, VI
STBY1, STBY2, 5V_STBY
28
V
Input voltage, VI
OUT1_u, OUT2_u, LH1, LH2
33
V
TRIP1, TRIP2
0.1
28
Oscillator frequency, fosc
300
500
kHz
Operating junction temperature range, TJ
40
125
°C
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