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LDS3985M18R 数据表(PDF) 7 Page - STMicroelectronics

部件名 LDS3985M18R
功能描述  Ultra low drop-low noise BiCMOS 300 mA voltage regulator for use with very low ESR output capacitor
PDF  20 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LDS3985M18R 数据表(HTML) 7 Page - STMicroelectronics

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LDS3985xx
Electrical characteristics
Doc ID 11039 Rev 7
7/20
5
Electrical characteristics
TJ = 25 °C, VI = VO(NOM) + 0.5 V, CI = 1 µF, CO = 2.2 µF, CBYP = 33 nF, IO = 1 mA,
VINH = 1.4 V, unless otherwise specified.
Table 5.
Electrical characteristics for LDS3985xx
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VI
Operating input voltage
2.5
6
V
VO
Output voltage < 2.5 V
IO = 1 mA
-50
50
mV
TJ = - 40 to 125 °C
-75
75
VO
Output voltage
≥ 2.5 V
IO = 1 mA
-2
2
% of
VO(NOM)
TJ= - 40 to 125 °C
-3
3
ΔV
O
Line regulation (1)
VI = VO(NOM) + 0.5 to 6 V,
TJ = - 40 to 125 °C
-0.1
0.1
%/V
VO = 4.7 to 5 V
-0.19
0.19
ΔV
O
Load regulation
IO = 1 mA to 300 mA, VO ≤ 2.5 V
TJ = - 40 to 125 °C
0.005
0.01
%/mA
ΔV
O
Load regulation
IO = 1 mA to 300 mA, VO ≥ 2.5 V
TJ = - 40 to 125 °C
0.0008
0.004
%/mA
ΔV
O
Output AC line regulation
(2)
VI = VO(NOM) + 1 V, IO = 300 mA,
tR = tF = 30 µs
5mVPP
IQ
Quiescent current
ON MODE: VINH = 1.24 V
IO = 0
85
µA
IO = 0, TJ = - 40 to 125 °C
150
IO = 0 to 300 mA
200
IO = 0 to 300 mA, TJ = - 40 to 125 °C
300
OFF MODE: VINH = 0.4 V
0.003
TJ = - 40 to 125 °C
1.5
VDROP Dropout voltage
(3)
IO = 1 mA
0.4
mV
IO = 1 mA, TJ = -40 to 125 °C
2
IO = 150 mA
60
IO = 150 mA, TJ = - 40 to 125 °C
100
IO = 300 mA
150
IO = 300 mA, TJ = - 40 to 125 °C
250
ISC
Short circuit current
RL = 0
600
mA
SVR
Supply voltage rejection
VI = VO(NOM)+0.25 V ±
VRIPPLE = 0.1 V, IO = 50 mA
For VO(NOM) < 2.5 V,
VI = 2.55 V
f = 1 kHz
55
dB
f = 10 kHz
50
IO(PK)
Peak output current
VO ≥ VO(NOM) - 5 %
300
550
mA



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