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參數(shù)資料
| 型號： | TPS54672PWPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 12 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 553K |
| 代理商： | TPS54672PWPG4 |
TPS54672
SLVS397C JULY 2001 REVISED FEBRUARY 2005
www.ti.com
3
ELECTRICAL CHARACTERISTICS
TJ = –40°C to +125°C, VI = 3 V to 6 V over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE, VIN
Input voltage range, VIN
3.0
6.0
V
VID
Differential voltage, AGND to PGND
0.30
V
Switching freq. = 350 kHz, RT open
10
16
I(Q)
Quiescent current
Switching freq. = 500 kHz, RT = 100 k
16
24
mA
I(Q)
Quiescent current
Shutdown, SS/ENA = 0 V
1
1.4
mA
UNDERVOLTAGE LOCKOUT
Start threshold voltage, UVLO
2.95
3.00
V
Stop threshold voltage, UVLO
2.70
2.80
V
Hysteresis voltage, UVLO
0.14
0.16
V
Rising and falling edge deglitch, UVLO(1)
2.5
s
BIAS VOLTAGE
Output voltage, VBIAS
I(VBIAS) = 0
2.70
2.80
2.90
V
Output current, VBIAS (2)
100
A
CUMULATIVE REFERENCE
Cumulative regulation accuracy (relative to
REFIN)
IO = 6A to 6A,
Switching frequency = 350 kHz,
REFIN = 1.25 V(1)
1.5%
OSCILLATOR
Internally set—free running frequency
RT open
280
350
420
kHz
Externally set—free running frequency range
RT = 68 k
to 180 k
280
700
kHz
Externally set—free running frequency
accuracy
RT = 100 k
(1% resistor to AGND)
460
500
540
kHz
Ramp valley
0.75
V
Ramp amplitude (peak-to-peak)
1
V
Minimum controllable on time(1)
200
ns
Maximum duty cycle (1)
90%
Error amplifier open loop voltage gain
1 k
COMP to AGND (1)
90
110
dB
Error amplifier unity gain bandwidth
Parallel 10 k
, 160 pF COMP to AGND (1)
3
5
MHz
Error amplifier common mode input voltage
range(1)
0
2.85
V
Error amplifier common mode rejection ratio(1)
65
dB
Input bias current, VSENSE
VSENSE = REFIN = 1 V
60
250
nA
Input bias current, REFIN
VSENSE = REFIN = 1.25 V
60
250
nA
Input offset voltage, REFIN
VSENSE = REFIN = 1.25 V
1.5
mV
Input voltage range, REFIN(1)
0
1.8
V
Output voltage slew rate (symmetric), COMP
1
1.4
V/
s
Common mode output voltage range, COMP
IO = 3 mA
2.65
V
Common mode output voltage range, COMP
IO = 3 mA
0.2
V
PWM comparator propagation delay time,
PWM comparator input to PH pin (excluding
deadtime)
10-mV overdrive (1)
70
85
ns
Enable threshold voltage, ENA
0.82
1.20
1.40
V
Enable hysteresis voltage, ENA (1)
0.03
V
Falling edge deglitch, ENA (1)
2.5
s
Leakage current, ENA
VI= 5.5 V
1
A
(1) Ensured by design
(2) Static resistive loads only
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|---|---|
| TPS54672PWPR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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| TPS54672PWRG4 | 制造商:Texas Instruments 功能描述: |
| TPS54673 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs |
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