參數(shù)資料
型號(hào)： TPS71025Y
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： LOW-DROPOUT VOLTAGE REGULATOR
中文描述： 低壓差穩(wěn)壓器
文件頁(yè)數(shù)： 5/20頁(yè)
文件大?。?/td> 308K
代理商： TPS71025Y
TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range, V
I(IN)
= 3.5 V,
I
O
= 10 mA, EN = 0 V, C
o
= 4.7
μ
F/CSR
= 1
, SENSE shorted to OUT (unless otherwise noted)
TEST CONDITIONS
PARAMETER
TJ
25
°
C
MIN
TYP
2.5
MAX
UNIT
Output voltage
3 5 V
≤
3.5 V
VI
≤
10 V
V
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
25
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
0
°
C to 125
°
C
2.45
2.55
7.5
10
95
105
450
500
0.9
IO= 10 mA
IO = 10 mA,
VI= 2 45 V
VI = 2.45 V
5.7
Dropout voltage
IO= 100 mA
IO = 100 mA,
VI= 2 45 V
VI = 2.45 V
57
mV
IO= 500 mA
IO = 500 mA,
VI= 2 45 V
VI = 2.45 V
330
Pass element series resistance
Pass-element series resistance
0.66
1
Input regulation
VI = 3.5 V to 10 V,
50
μ
A
≤
IO
≤
500 mA
IO = 5 mA to 500 mA,
3.5 V
≤
VI
≤
10 V
IO = 50
A to 500 mA,
μ
3.5 V
≤
VI
≤
10 V
7
23
29
38
75
60
120
mV
12.7
18
mV
Output regulation
24
mV
f = 120 Hz,
IO= 50
μ
IO = 50
A
43
40
39
36
53
Ripple rejection
dB
f = 120 Hz,
IO= 500 mA
IO = 500 mA
51
Output noise-spectral density
f = 120 Hz
2
μ
V/
√
Hz
≤
≤
10 Hz
f
100 kHz,
CSR = 1
Co = 4.7
μ
F
Co = 10
μ
F
Co = 100
μ
F
274
Output noise voltage
228
μ
Vrms
159
292
Quiescent current (active mode)
EN
≤
0.5 V,
0 mA
≤
IO
≤
500 mA
390
540
475
1900
μ
A
Supply current (standby mode)
EN = VI,
2 7 V
≤
2.7 V
VI
≤
10 V
18
nA
Output current limit
VO= 0
VO = 0,
VI= 10 V
VI = 10 V
1.07
2
2
A
Pass-element leakage current in standby
mode
EN = VI,
2 7 V
≤
2.7 V
VI
≤
10 V
0.223
0.5
μ
A
1
Output voltage temperature coefficient
Thermal shutdown junction temperature
61
165
75
ppm/
°
C
°
C
Logic high input voltage (standby mode) EN
Logic high input voltage (standby mode), EN
2.5 V
≤
VI
≤
6 V
6 V
≤
VI
≤
10 V
25
°
C
2
V
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
25
°
C
0
°
C to 125
°
C
2.7
Logic low input voltage (active mode) EN
Logic low input voltage (active mode), EN
2 7 V
≤
2.7 V
VI
≤
10 V
0.5
0.5
V
Hysteresis voltage, EN
50
mV
Input current EN
Input current, EN
≤
0 V
VI
≤
10 V
–0.5
–0.5
0.5
0.5
2.5
2.5
μ
A
Input voltage, minimum for active pass
g ,
element
CSR (compensation series resistance) refers to the total series resistance, including the equivalent series resistance (ESR) of the capacitor, any
series resistance added externally, and PWB trace resistance to Co.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
2
V
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