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參數資料
型號: TPS54160DGQR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: 2.7 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封裝: GREEN, PLASTIC, MSOP-10
文件頁數: 34/50頁
文件大小: 1375K
代理商: TPS54160DGQR
SLVS795C – OCTOBER 2008 – REVISED OCTOBER 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ = –40°C to 150°C, VIN = 3.5 to 60V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT LIMIT
Current limit threshold
VIN = 12 V, TJ = 25°C
1.8
2.7
A
THERMAL SHUTDOWN
Thermal shutdown
182
°C
TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN)
Switching frequency range using RT
100
2500
kHz
mode
fSW
Switching frequency
RT = 200 k
450
581
720
kHz
Switching frequency range using
300
2200
kHz
CLK mode
Minimum CLK input pulse width
40
ns
RT/CLK high threshold
1.9
2.2
V
RT/CLK low threshold
0.5
0.7
V
RT/CLK falling edge to PH rising
Measured at 500 kHz with RT resistor in series
60
ns
edge delay
PLL lock in time
Measured at 500 kHz
100
ms
SLOW START AND TRACKING (SS/TR)
Charge current
VSS/TR = 0.4 V
2
mA
SS/TR-to-VSENSE matching
VSS/TR = 0.4 V
45
mV
SS/TR-to-reference crossover
98% nominal
1.0
V
SS/TR discharge current (overload)
VSENSE = 0 V, V(SS/TR) = 0.4 V
112
mA
SS/TR discharge voltage
VSENSE = 0 V
54
mV
POWER GOOD (PWRGD PIN)
VSENSE falling
92%
VSENSE rising
94%
VVSENSE
VSENSE threshold
VSENSE rising
109%
VSENSE falling
107%
Hysteresis
VSENSE falling
2%
Output high leakage
VSENSE = VREF, V(PWRGD) = 5.5 V, 25°C
10
nA
On resistance
I(PWRGD) = 3 mA, VSENSE < 0.79 V
50
Minimum VIN for defined output
V(PWRGD) < 0.5 V, II(PWRGD) = 100 mA
0.95
1.5
V
4
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS54160
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