參數(shù)資料
型號(hào)： TPS7248QPWRG4
廠商： Texas Instruments, Inc.
英文描述： MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
中文描述： 微功率低壓差（LDO）穩(wěn)壓器
文件頁(yè)數(shù)： 11/37頁(yè)
文件大小： 581K
代理商： TPS7248QPWRG4
TPS7201Q, TPS7225Q, TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102G – MARCH 1995 – REVISED JUNE 2000
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TPS7248Q electrical characteristics, I
O
= 10 mA, V
I
= 5.85 V, EN = 0 V, C
O
= 4.7
μ
F (CSR
= 1
),
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
TPS7248Q
TYP
4.85
UNIT
MIN
MAX
Output voltage
VI = 5.85 V,
5.85 V
≤
VI
≤
10 V,
IO = 10 mA
5 mA
≤
IO
≤
250 mA
25
°
C
V
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
25
°
C
4.75
4.95
IO= 10 mA
IO = 10 mA,
VI= 4 75 V
VI = 4.75 V
10
19
30
Dropout voltage
IO= 100 mA
IO = 100 mA,
VI= 4 75 V
VI = 4.75 V
90
100
mV
150
IO= 250 mA
IO = 250 mA,
VI= 4 75 V
VI = 4.75 V
216
250
285
Pass element series resistance
Pass-element series resistance
(4.75 V – VO)O,
IO = 250 mA
VI = 4.75 V,
0.8
1
1.4
Input regulation
VI= 5 85 V to 10 V
VI = 5.85 V to 10 V,
μ
≤
50
A
IO
≤
250 mA
34
mV
50
IO= 5 mA to 250 mA
IO = 5 mA to 250 mA,
5 85 V
≤
5.85 V
VI
≤
10 V
43
55
Output regulation
95
mV
IO= 50
μ
IO = 50
A to 250 mA,
5 85 V
≤
5.85 V
VI
≤
10 V
55
75
135
IO= 50
μ
IO = 50
A
42
53
Ripple rejection
f = 120 Hz
36
dB
IO= 250 mA
IO = 250 mA
36
46
34
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
370
Output noise voltage
25
°
C
25
°
C
290
μ
Vrms
CSR = 1
168
PG trip-threshold voltage
VO voltage decreasing from above VPG
–40
°
C to 125
°
C
0.95
×
VO(nom)
V
PG hysteresis voltage
25
°
C
50
mV
PG output low voltage
IPG= 1 2 mA
IPG = 1.2 mA,
VI= 4 12 V
VI = 4.12 V
25
°
C
0.2
0.4
0.4
V
–40
°
C to 125
°
C
CSR refers to the total series resistance, including the 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.
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