參數(shù)資料
型號(hào): TPS72215DBVR
廠商: Texas Instruments, Inc.
英文描述: LOW INPUT VOLTAGE, CAP FREE 50-mA LOW-DROPOUT LINEAR REGULATORS
中文描述: 低輸入電壓,第免費(fèi)50毫安低壓降線性穩(wěn)壓器
文件頁(yè)數(shù): 3/11頁(yè)
文件大小: 119K
代理商: TPS72215DBVR
TPS72201, TPS72215
TPS72216, TPS72218
SLVS390B
DECEMBER 2001
REVISED MAY 2002
www.ti.com
3
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO= 1 mA, EN = VI, Co = 4.7
μ
F (unless otherwise noted)
PARAMETER
Input voltage(1)
TEST CONDITIONS
MIN
1.8
TYP
MAX
5.5
UNIT
V
VI
IO
TJ
Continuous output current
0
50
mA
°
C
Operating unction temperature
40
125
TPS72201
0
μ
A< IO < 50 mA,(1)
TJ = 25
°
C
0
μ
A< IO < 50 mA
TJ = 25
°
C
0
μ
A< IO < 50 mA
TJ = 25
°
C
0
μ
A< IO < 50 mA
TJ = 25
°
C
1.2 V
VO
2.5 V
0.97 VO
1.03 VO
TPS72215
1.5
2.5 V
VI
5.5 V
1.455
1.545
VO
Output voltage
Out ut voltage
TPS72216
1.6
V
2.6 V
VI
5.5 V
1.552
1.648
TPS72218
1.8
2.5 V
VI
5.5 V
1.746
1.854
85
I(Q)
Quiescent current (GND terminal
current)
120
IO = 50 mA
IO = 50 mA
EN < 0.5 V,
TJ = 25
°
C
275
μ
A
550
Standbycurrent
Standby current
TJ = 25
°
C
0.01
EN < 0.5 V
1
μ
A
Vn
Output noise voltage
TPS72215
BW = 200 Hz to 100 kHz,
TJ = 25
°
C
TJ = 25
°
C
f = 100 Hz, Co = 10
μ
F,
IO = 50 mA
See Note 2
Co = 1
μ
F
90
μ
V
Vref
Reference voltage
1.225
V
PSRR
Ripple rejection
TJ = 25
°
C,
See Note 1
48
dB
Current limit
175
525
mA
Output voltage line regulation
Out ut voltage line regulation
(
VO/VO)(3)
Output voltage load
regulation
VO + 1 V < VI
5.5 V
5 5 V
TJ = 25
°
C
0.03
0.09
%/V
0.1
TPS72218
0 < IO < 50 mA,
TJ = 25
°
C
0.2
mV
VIH
VIL
EN high level input
1.4
V
EN low level input
0.2
0.4
V
II
EN input current
EN = 0 V
0.01
EN = IN
0.01
μ
A
VDO
Dropoutvoltage(4)
Dropout voltage (4)
TPS72218
IO = 50 mA
IO = 50 mA
TJ = 25
°
C
1.2 V
VO
5.2 V
50
mV
TPS72201
100
In
Feedback input current
TPS72201
1
μ
A
°
C
°
C
Thermal shutdown temperature
170
Thermal shutdown hysteresis
(1)Minimum IN operating voltage is 1.8 V or VO(max) + VDO (max load), whichever is greater.
(2)Test condition includes, output voltage VO = 1 V and pulse duration = 10 mS.
(3)VImax = 5.5 V, VImin = (VO + 1) or 1.8 V whichever is greater.
20
Line regulation (mV)
% V
VO5.5 V
VImin
100
1000
(4)Dropout voltage is defined as the differential voltage between VO and VI when VO drops 100 mV below the value measured with VI = VO + 1 V.
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