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LD3986 数据表(PDF) 4 Page - STMicroelectronics

部件名 LD3986
功能描述  DUAL ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REG. FOR USE WITH VERY LOW ESR OUT. CAPACITORS
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LD3986 数据表(HTML) 4 Page - STMicroelectronics

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LD3986 SERIES
4/12
Table 5: Electrical Characteristics For LD3986 (Tj = 25°C, VI = VO(NOM) +0.5V, CI = CO =1µF,
CBYP = 10nF, IO = 1mA, VEN = 1.4V, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Operating Input Voltage
2.5
6
V
∆V
O
Output Voltage Tolerance
IO = 1mA
-2.5
2.5
% of VO
TJ= -40 to 125°C
-3
3
∆V
O
Line Regulation (Note 1)
VI = VO(NOM) + 0.5 V to 6V
0.006
0.092
%/V
TJ= -40 to 125°C
0.128
∆V
O
Load Regulation
IO = 1 mA to 150mA
0.003
0.006
%/mA
TJ= -40 to 125°C
0.01
∆V
O
Output AC Line Regulation
(See fig. 5)
VI = VO(NOM) + 1 V, IO = 150mA,
tR= tF = 30µs
1.5
mVPP
IQ
Quiescent Current
BOTH ON MODE:
VEN = 1.4V
IO = 0
150
µA
IO = 0
TJ= -40 to 125°C
200
IO = 0 to 150mA
290
IO = 0 to 150mA
TJ= -40 to 125°C
370
BOTH OFF MODE:
VEN = 0.4V
0.001
2
TJ= -40 to 125°C
4
ONE REGULATOR
ON MODE: VEN = 1.4V
IO = 0
95
IO = 0
TJ= -40 to 125°C
130
IO = 0 to 150mA
165
IO = 0 to 150mA
TJ= -40 to 125°C
220
VDROP Dropout Voltage (Note 2)
IO = 1mA
0.4
mV
IO = 1mA
TJ= -40 to 125°C
2
IO = 150mA
50
IO = 150mA
TJ= -40 to 125°C
100
SVR
Supply Voltage Rejection
(See fig. 4)
VI = VO(NOM)+0.25V ±
VRIPPLE = 0.1V,
IO= 50mA
VO(NOM) < 2.5V,
VI = 2.55V
f = 1KHz
50
dB
f = 10KHz
40
ISC
Short Circuit Current
RL = 0
600
mA
IO(PK)
Peak Output Current
VO ≥ VO(NOM) - 5%
300
550
mA
VEN
Enable Input Logic Low
(Note 3)
VI = 2.5V to 6V
TJ= -40 to 125°C
0.4
V
Enable Input Logic High
(Note 3)
1.4
IEN
Enable Input Current
VEN = 0.4V
VI = 6V
±10
nA
XTALK
Crosstalk Rejection
∆I
LOAD1 = 150 mA at 1KHz rate
ILOAD2 = 1 mA, VO2 under test
40
µV
∆I
LOAD2 = 150 mA at 1KHz rate
ILOAD1 = 1 mA, VO1 under test
40
eN
Output Noise Voltage
BW = 10 Hz to 100 KHz
CO = 1 µF30
µV
RMS
tON
Turn On Time (Note 4)
CBYP = 10 nF
50
µs
TSHDN Thermal Shutdown (Note
4)
(Note 3)
160
°C



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