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)： 6/20頁(yè)
文件大?。?/td> 308K
代理商： TPS71025Y
TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at T
J
= 25
°
C, 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)
PARAMETER
TEST CONDITIONS
TPS71025Y
MIN
UNIT
TYP
MAX
Output voltage
3.5 V
≤
VI
≤
10 V
IO = 10 mA,
IO = 100 mA,
IO = 500 mA,
2.5
V
VI = 2.45 V
VI = 2.45 V
VI = 2.45 V
5.7
Dropout voltage
57
mV
330
Pass-element series resistance
0.66
mV
Input regulation
VI = 3.5 V to 10 V
IO = 5 mA to 500 mA
IO = 50
μ
A to 500 mA
f = 120 Hz,
7
Output regulation
18
mV
24
mV
Ripple rejection
IO = 50
μ
A
IO = 500 mA
53
dB
f = 120 Hz,
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
Quiescent current (active mode)
EN = 0 V,
0 mA
≤
IO
≤
500 mA
EN = VI,
VO = 0,
EN = VI,
292
μ
A
Supply current (standby mode)
2.7 V
≤
VI
≤
10 V
VI = 10 V
2.7 V
≤
VI
≤
10 V
18
nA
Output current limit
1.07
A
μ
A
Pass-element leakage current in standby mode
0.223
Output voltage temperature coefficient
61
ppm/
°
C
°
C
Thermal shutdown junction temperature
165
Logic high inp t oltage (standb mode) EN
Logic high input voltage (standby mode), EN
2.5 V
≤
VI
≤
6 V
6 V
≤
VI
≤
10 V
2.7 V
≤
VI
≤
10 V
2
V
2.7
Logic low input voltage (active mode), EN
0.5
V
Hysteresis voltage, EN
50
mV
μ
A
V
Input current, EN
0 V
≤
VI
≤
10 V
0
Input voltage, minimum for active pass 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
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