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參數資料
| 型號： | LP3986BL-3131 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PBGA8 |
| 封裝： | 0.995 MM, MICRO, BUMP, SMD-8 |
| 文件頁數： | 5/13頁 |
| 文件大?。?/td> | 328K |
| 代理商： | LP3986BL-3131 |
Electrical Characteristics
(Continued)
Unless otherwise specified: V
= V
+ 0.5V, C
= 1 μF, I
= 1mA, C
OUT
= 1 μF, C
BYPASS
= 0.01μF. Typical values
and limits appearing in standard typeface are for T
= 25C. Limits appearing in
temperature range for operation, 40C to +125C. (Note 7) (Note 8)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
e
n
Output Noise Voltage
BW = 10 Hz to 100 kHz,
C
OUT
= 1μF
f = 120 Hz,
C
OUT
= 1μF
V
EN
= 0.4 and V
IN
= 6V
40
μVrms
ρ
n(1/f)
Output Noise Density
1
μV/
I
EN
Maximum Input Current
at EN
Maximum Low Level
Input Voltage at EN
Minimum High Level
Input Voltage at EN
±
10
nA
V
IL
V
IN
= 2.5 to 6V
0.4
V
V
IH
V
IN
= 2.5 to 6V
1.4
V
Xtalk
Crosstalk Rejection
I
Load1
= 150 mA at 1KHz rate
I
Load2
= 1 mA
V
OUT2
/
V
OUT1
I
Load2
= 150 mA at 1KHz rate
I
Load1
= 1 mA
V
OUT2
/
V
OUT1
(Note 13)
(Note 14)
60
dB
60
C
OUT
Capacitance
ESR
1
5
22
500
μF
m
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.
Note 2:
All voltages are with respect to the potential at the GND pin.
Note 3:
Additional information on pad temperature can be found in National Semiconductor Application Note (AN-1112).
The Absolute Maximum power dissipation depends on the ambient temperature and can be calculated using the formula:
P
D
= (T
J
- T
A
)/
θ
JA
,
Where T
J
is the junction temperature, T
A
is the ambient temperature, and
θ
JA
is the junction-to-ambient thermal resistance. The 364mW rating appearing under
Absolute Maximum Ratings results from substituting the Absolute Maximum junction temperature, 150C, for T
J
, 70C for T
A
, and 220C/W for
θ
JA
. More power can
be dissipated safely at ambient temperatures below 70C . Less power can be dissipated safely at ambient temperatures above 70C. TheAbsolute Maximum power
dissipation can be increased by 4.5mW for each degree below 70C, and it must be derated by 4.5mW for each degree above 70C.
Note 5:
The human body model is 100pF discharged through a 1.5k
resistor into each pin. The machine model is a 200pF capacitor discharged directly into each
pin.
Note 6:
Like the Absolute Maximum power dissipation, the maximum power dissipation for operation depends on the ambient temperature. The 250mW rating
appearing under Operating Ratings results from substituting the maximum junction temperature for operation, 125C, for T
J
, 70C for T
A
, and 220C/W for
θ
JA
into
(1) above. More power can be dissipated at ambient temperatures below 70C . Less power can be dissipated at ambient temperatures above 70C. The maximum
power dissipation for operation can be increased by 4.5mW for each degree below 70C, and it must be derated by 4.5mW for each degree above 70C.
Note 7:
All limits are guaranteed. All electrical characteristics having room temperature limits are tested during production with T
J
= 25C or correlated using
Statistical Quality Control (SQC) methods. All hot and cold limits are guaranteed by correlating the electrical characteristics to process and temperature variations
and applying statistical process control.
Note 8:
The target output voltage, which is labeled V
OUT(nom)
, is the desired voltage option.
Note 9:
The output voltage changes slightly with line voltage. An increase in the line voltage results in a slight increase in the output voltage and vice versa.
Note 10:
The output voltage changes slightly with load current. An increase in the load current results in a slight decrease in the output voltage and vice versa.
Note 11:
Dropout voltage is the input-to-output voltage difference at which the output voltage is 100mV below its nominal value.
Note 12:
Turn-on time is that between the enable input just exceeding V
IH
and the output voltage just reaching 95% of its nominal value.
Note 13:
Range of capacitor values for which the device will remain stable. This electrical specification is guaranteed by design.
Note 14:
Range of capacitor ESR values for which the device will remain stable. This electrical specification is guaranteed by design.
L
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| LP3986BLX-2528 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package |
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