參數(shù)資料
型號： TPS54973PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)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(shù)： 16/22頁
文件大?。?/td> 604K
代理商： TPS54973PWP
TPS54973
SLVS453A FEBRUARY 2003 REVISED FEBRUARY 2005
www.ti.com
3
ELECTRICAL CHARACTERISTICS
TJ = 40°C to 125°C, VI = 3 V to 4 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE, VIN
Input voltage range, VIN
3.0
4.0
V
fs = 350 kHz, SYNC ≤ 0.8 V, RT open,
PH pin open
9.8
17
I(Q)
Quiescent current
fs = 550 kHz, SYNC ≥ 2.5 V, RT open,
PH pin open
14
23
mA
Shutdown, SS/ENA = 0 V
1
1.4
UNDER VOLTAGE LOCK OUT
Start threshold voltage, UVLO
2.95
3.0
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
Vref
Accuracy
0.882
0.891
0.900
V
REGULATION
Line regulation(1)(3)
IL = 3 A, fs = 350 kHz, TJ = 85°C
0.04
%/V
Line regulation(1)(3)
IL = 3 A, fs = 550 kHz, TJ = 85°C
0.04
%/V
Load regulation(1)(3)
IL = 0 A to 6 A, fs = 350 kHz, TJ = 85°C
0.03
%/A
Load regulation(1)(3)
IL = 0 A to 6 A, fs = 550 kHz, TJ = 85°C
0.03
%/A
OSCILLATOR
Internally set free running frequency
SYNC ≤ 0.8 V,
RT open
280
350
420
kHz
Internally set—free running frequency
SYNC ≥ 2.5 V,
RT open
440
550
660
kHz
RT = 180 k (1% resistor to AGND)
252
280
308
Externally set—free running frequency range
RT = 100 k (1% resistor to AGND)
460
500
540
kHz
Externally set free running frequency range
RT = 68 k (1% resistor to AGND)
663
700
762
kHz
High level threshold, SYNC
2.5
V
Low level threshold, SYNC
0.8
V
Pulse duration, external synchronization, SYNC(1)
50
ns
Frequency range, SYNC(1)
330
700
kHz
Ramp valley(1)
0.75
V
Ramp amplitude (peak-to-peak)(1)
1
V
Minimum controllable on time(1)
200
ns
Maximum duty cycle
90%
(2) Static resistive loads only
(3) Specified by the circuit used in Figure 9
相關PDF資料
PDF描述
TPS54974PWP 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
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相關代理商/技術參數(shù)
參數(shù)描述
TPS54973PWPG4 功能描述:直流/直流開關調(diào)節(jié)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(shù)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(diào)節(jié)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(shù)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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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(diào)節(jié)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(shù)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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