參數(shù)資料
型號(hào)： TPS79350
廠商： Texas Instruments, Inc.
英文描述： ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA LOW-DROPOUT LINEAR REGULATORS(超低噪聲,200mA低壓差線性穩(wěn)壓器)
中文描述： 超低噪聲，高PSRR，快速射頻200毫安低壓差線性穩(wěn)壓器（超低噪聲，200mA的低壓差線性穩(wěn)壓器）
文件頁數(shù)： 3/14頁
文件大小： 267K
代理商： TPS79350
TPS79301, TPS79318, TPS79325
TPS79328, TPS793285, TPS79330
TPS79333, TPS793475
SLVS348C
–
JULY 2001
–
REVISED APRIL 2002
3
www.ti.com
electrical characteristics over recommended operating free-air temperature range EN = V
I,
T
J
=
–
40 to 125
°
C, V
I
= V
O(typ)
+ 1 V, I
O
= 1 mA, C
o
= 10
μ
F, C
(byp)
= 0.01
μ
F (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VI
Input voltage (see Note 2)
IO
Continuous output current (see Note 3)
TJ
Operating junction temperature
0
μ
A< IO < 200 mA,
(see Note 4 )
TJ = 25
°
C
0
μ
A< IO < 200 mA,
TJ = 25
°
C
0
μ
A< IO < 200 mA,
TJ = 25
°
C
0
μ
A< IO < 200 mA,
Output voltage
TPS793285
0
μ
A< IO < 200 mA,
TJ = 25
°
C
0
μ
A< IO < 200 mA,
TJ = 25
°
C
0
μ
A
≤
IO < 200 mA,
TJ = 25
°
C
0
μ
A< IO < 200 mA,
0
μ
A< IO < 200 mA,
0
μ
A< IO < 200 mA
Load regulation
0
μ
A< IO < 200 mA,
Output voltage line regulation (
Out ut voltage line regulation (
VO/VO)
(see Note 5)
VO + 1 V < VI
≤
5.5 V
MIN
2.7
TYP
MAX
5.5
200
125
UNIT
V
mA
°
C
0
–
40
TPS79301
1.22 V
≤
VO
≤
5.2 V,
0.98 VO
1.02 VO
V
TPS79318
1.8
V
2.8 V < VI < 5.5 V
1.764
1.836
TPS79325
2.5
V
3.5 V < VI < 5.5 V
2.45
2.55
TPS79328
2.8
V
3.8 V < VI < 5.5 V
2.744
2.856
TJ = 25
°
C
2.85
V
3.85 V < VI < 5.5 V
2.793
2.907
TPS79330
3
V
4 V < VI < 5.5 V
2.94
3.06
TPS79333
3.3
V
4.3 V < VI < 5.5 V
3.234
3.366
TPS793475
4.75
V
5.25 V < VI < 5.5 V
TJ = 25
°
C
4.655
4.845
Quiescent current (GND current)
170
μ
A
μ
A
mV
220
TJ = 25
°
C
TJ = 25
°
C
5
VO + 1 V < VI
≤
5.5 V,
0.05
%/V
0.12
C(byp) = 0.001
μ
F
C(byp) = 0.0047
μ
F
C(byp) = 0.01
μ
F
C(byp) = 0.1
μ
F
C(byp) = 0.001
μ
F
C(byp) = 0.0047
μ
F
C(byp) = 0.01
μ
F
See Note 4
2.7 V < VI < 5.5 V
55
36
33
32
50
70
100
Output noise voltage (TPS79328)
BW = 200 Hz to 100 kHz,
IO = 200 mA, TJ = 25
°
C
μ
VRMS
RL = 14
,
Co= 1
μ
Co = 1
F, TJ = 25
Time, start-up (TPS79328)
Time, start u (TPS79328)
TJ= 25
°
C
μ
s
Output current limit
Standby current
High level enable input voltage
Low level enable input voltage
Input current (EN)
Input current (FB) (TPS79301)
NOTES:
2. To calculate the minimum input voltage for your maximum output current, use the following formula:
VI(min) = VO(max) + VDO (max load)
3. Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended
that the device operate under conditions beyond those specified in this table for extended periods of time.
4. The minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. The maximum IN voltage is 5.5 V. The maximum
output current is 200 mA.
5. If VO
≤
2.5 V then VImin = 2.7 V, VImax = 5.5 V:
VOVImax
100
If VO
≥
2.5 V then VImin = VO + 1 V, VImax = 5.5 V.
VO = 0 V,
EN = 0 V,
2.7 V < VI < 5.5 V
2.7 V < VI < 5.5 V
EN = 0
FB = 1.8 V
285
600
mA
μ
A
V
V
μ
A
μ
A
0.07
1
2
0.7
–
1
1
1
Line Reg. (mV)
% V
2.7 V
1000
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