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LDS3985M26R Datasheet(PDF) 4 Page - STMicroelectronics

Part # LDS3985M26R
Description  ULTRA LOW DROP-LOW NOISE BICMOS 300mA V.REG. FOR USE WITH VERY LOW ESR OUTPUT CAPACITOR
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LDS3985M26R Datasheet(HTML) 4 Page - STMicroelectronics

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LDS3985 SERIES
4/13
Table 5: Electrical Characteristics For LDS3985 (Tj = 25°C, VI = VO(NOM) +0.5V, CI = 1µF, CO = 2.2µF
CBYP = 33nF, IO = 1mA, VINH = 1.4V, unless otherwise specified)
Note 1: For VO(NOM) < 2V VI = 2.5V
Note 2: For VO(NOM) =1.25V VI = 2.5V
Note 3: Dropout voltage is the input-to-output voltage difference at which the output voltage is 100mV below its nominal value. This specifi-
cation does not apply for input voltages below 2.5V.
Note 4: Turn -on time is time measured between the enable input just exceeding VINH High Value and the output voltage just reaching 95%
of its nominal value
Note 5: Typical thermal protection hysteresis is 20°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Operating Input Voltage
2.5
6
V
VO
Output Voltage < 2.5V
IO = 1 mA
-50
50
mV
TJ= -40 to 125°C
-75
75
VO
Output Voltage
≥ 2.5V
IO = 1 mA
-2
2
% of
VO(NOM)
TJ= -40 to 125°C
-3
3
∆V
O
Line Regulation (Note 1)
VI = VO(NOM) + 0.5 to 6 VTJ= -40 to 125°C
-0.1
0.1
%/V
VO = 4.7 to 5V
-0.19
0.19
∆V
O
Load Regulation
IO = 1 mA to 300mA
VO ≤ 2.5V
TJ= -40 to 125°C
0.005
0.01
%/mA
∆V
O
Load Regulation
IO = 1 mA to 300mA
VO ≥ 2.5V
TJ= -40 to 125°C
0.0008
0.004
%/mA
∆V
O
Output AC Line Regulation
(Note 2)
VI = VO(NOM) + 1 V, IO = 300mA,
tR= tF = 30µs
5mVPP
IQ
Quiescent Current
ON MODE: VINH = 1.24V
IO = 0
85
µA
IO = 0
TJ= -40 to 125°C
150
IO = 0 to 300mA
200
IO = 0 to 300mA
TJ= -40 to 125°C
300
OFF MODE: VINH = 0.4V
0.003
TJ= -40 to 125°C
1.5
VDROP Dropout Voltage (Note 3)
IO = 1mA
0.4
mV
IO = 1mA
TJ= -40 to 125°C
2
IO = 150mA
60
IO = 150mA
TJ= -40 to 125°C
100
IO = 300mA
150
IO = 300mA
TJ= -40 to 125°C
250
ISC
Short Circuit Current
RL = 0
600
mA
SVR
Supply Voltage Rejection
VI = VO(NOM)+0.25V ±
VRIPPLE = 0.1V,
IO= 50mA
For VO(NOM) < 2.5V, VI=2.55V
f = 1KHz
55
dB
f = 10KHz
50
IO(PK)
Peak Output Current
VO ≥ VO(NOM) - 5%
300
550
mA
VINH
Inhibit Input Logic Low
VI = 2.5V to 6V
TJ= -40 to 125°C
0.4
V
Inhibit Input Logic High
1.4
IINH
Inhibit Input Current
VINH = 0.4V
VI = 6V
±1
nA
eN
Output Noise Voltage
BW = 10 Hz to 100 KHz
CO = 2.2 µF30
µV
RMS
tON
Turn On Time (Note 4)
CBYP = 33 nF
240
µs
TSHDN Thermal Shutdown
Note 5
160
°C
CO
Output Capacitor
Capacitance (Note 6)
2.2
22
µF
ESR
5
5000
m


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