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参数资料
| 型号： | TPS793285DBVRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 2.85 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| 封装： | PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 11/16页 |
| 文件大小： | 356K |
| 代理商： | TPS793285DBVRQ1 |
TPS79301Q1,'79318Q1, '79325Q1
'79328Q1,'793285Q1,'79330Q1
TPS79333Q1,'793475Q1
SGLS162B APRIL 2003 REVISED JUNE 2005
www.ti.com
4
electrical characteristics over recommended operating free-air temperature range EN = VI,
TJ = 40°C to 125°C, VI = VO(typ) + 1 V, IO = 1 mA, Co = 10 F, C(byp) = 0.01 F (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI
Input voltage (see Note 1)
2.7
5.5
V
IO
Continuous output current (see Note 2)
0
200
mA
TJ Operating junction temperature
40
125
°C
TPS79301
0
A< IO < 200 mA,
(see Note 4)
1.22 V
≤ VO ≤ 5.2 V,
0.98 VO
1.02 VO
V
TPS79318
TJ = 25°C
1.8
V
TPS79318
0
A< IO < 200 mA,
2.8 V < VI < 5.5 V
1.764
1.836
V
TPS79325
TJ = 25°C
2.5
V
TPS79325
0
A< IO < 200 mA,
3.5 V < VI < 5.5 V
2.45
2.55
V
TPS79328
TJ = 25°C
2.8
V
Output voltage
TPS79328
0
A< IO < 200 mA,
3.8 V < VI < 5.5 V
2.744
2.856
V
Output voltage
TPS793285
TJ = 25°C
2.85
V
TPS793285
0
A< IO < 200 mA,
3.85 V < VI < 5.5 V
2.793
2.907
V
TPS79330
TJ = 25°C
3
V
TPS79330
0
A< IO < 200 mA,
4 V < VI < 5.5 V
2.94
3.06
V
TPS79333
TJ = 25°C
3.3
V
TPS79333
0
A ≤ IO < 200 mA,
4.3 V < VI < 5.5 V
3.234
3.366
V
TPS793475
TJ = 25°C
4.75
V
TPS793475
0
A< IO < 200 mA,
5.25 V < VI < 5.5 V
4.655
4.845
V
Quiescent current (GND current)
0
A< IO < 200 mA,
TJ = 25°C
170
A
Quiescent current (GND current)
0
A< IO < 200 mA
220
A
Load regulation
0
A< IO < 200 mA,
TJ = 25°C
5
mV
Output voltage line regulation (
VO/VO) (see VO + 1 V < VI ≤ 5.5 V,
TJ = 25°C
0.05
%/V
Output voltage line regulation (
VO/VO) (see
Note 4)
VO + 1 V < VI ≤ 5.5 V
0.12
%/V
C(byp) = 0.001 F
55
Output noise voltage (TPS79328)
BW = 200 Hz to 100 kHz,
C(byp) = 0.0047 F
36
VRMS
Output noise voltage (TPS79328)
BW = 200 Hz to 100 kHz,
IO = 200 mA, TJ = 25°C
C(byp) = 0.01 F
33
VRMS
IO = 200 mA, TJ = 25 C
C(byp) = 0.1 F
32
RL = 14 ,
C(byp) = 0.001 F
50
Time, start-up (TPS79328)
RL = 14 ,
Co = 1 F, TJ = 25°C
C(byp) = 0.0047 F
70
s
Time, start-up (TPS79328)
Co = 1 F, TJ = 25°C
C(byp) = 0.01 F
100
s
Output current limit
VO = 0 V,
See Note 3
285
600
mA
Standby current
EN = 0 V, 2.7 V < VI < 5.5 V
0.07
1
A
High level enable input voltage
2.7 V < VI < 5.5 V
2
V
Low level enable input voltage
2.7 V < VI < 5.5 V
0.7
V
Input current (EN)
EN = 0
1
A
Input current (FB) (TPS79301)
FB = 1.8 V
1
A
(1) To calculate the minimum input voltage for your maximum output current, use the following formula:
VI(min) = VO(max) + VDO (max load)
(2) 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.
(3) 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.
(4) If VO ≤ 2.5 V then VImin = 2.7 V, VImax = 5.5 V:
Line Reg. (mV)
+ % V
V
O
V
Imax *
2.7 V
100
1000
If VO ≥ 2.5 V then VImin = VO + 1 V, VImax = 5.5 V.
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