參數(shù)資料
型號: LP3985IBLX-285
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
中文描述: 2.85 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PBGA5
封裝: 0.995 MM HEIGHT, MICRO, SMD-5
文件頁數(shù): 5/17頁
文件大?。?/td> 570K
代理商: LP3985IBLX-285
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Notes 1,
V
IN
, V
EN
V
OUT
Junction Temperature
Storage Temperature
Lead Temp.
Pad Temp. (Note 3)
Maximum Power Dissipation
SOT23-5 (Note 4)
micro SMD (Note 4)
ESD Rating(Note 5)
Human Body Model
Machine Model
0.3 to 6.5V
-0.3 to (V
IN
+0.3)
6.5V
150C
65C to +150C
235C
235C
364mW
355mW
2kV
150V
Operating Ratings
(Notes 1, 2)
V
IN
V
EN
Junction Temperature
Thermal Resistance
θ
JA
(SOT23-5)
θ
JA
(micro SMD)
Maximum Power Dissipation
SOT23-5 (Note 6)
micro SMD (Note 6)
2.5 to 6V
0 to (V
IN
+0.3)
6V
40C to +125C
220C/W
255C/W
250mW
244mW
Electrical Characteristics
Unless otherwise specified: V
IN
= V
OUT(nom)
+ 0.5V, C
IN
= 1 μF, I
OUT
= 1mA, C
OUT
= 1 μF, C
BYPASS
= 0.01μF. Typical values
and limits appearing in standard typeface are for T
J
= 25C. Limits appearing in
apply over the entire junction
temperature range for operation, 40C to +125C. (Note 7) (Note 8)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
2
3
Max
2
3
V
OUT
Output Voltage
Tolerance
Line Regulation Error
I
OUT
= 1mA
% of
V
OUT(nom)
V
IN
= (V
OUT(nom)
+ 0.5V) to 6.0V,
For 4.7 to 5.0 options
For all other options
I
OUT
= 1 mA to 150 mA
LP3985IM5 (SOT23-5)
LP3985 (micro SMD)
V
IN
= V
OUT(nom)
+ 1V,
I
OUT
= 150 mA (
Figure 1
)
V
IN
= V
OUT(nom)
+ 0.2V,
f = 1 kHz,
I
OUT
= 50 mA (
Figure 2
)
V
IN
= V
OUT(nom)
+ 0.2V,
f = 10 kHz,
I
OUT
= 50 mA (
Figure 2
)
V
EN
= 1.4V, I
OUT
= 0 mA
For 4.7 to 5.0 options
For all other options
V
EN
= 1.4V, I
OUT
= 0 to 150 mA
For 4.7 to 5.0 options
For all other options
V
EN
= 0.4V
I
OUT
= 1 mA
I
OUT
= 50 mA
I
OUT
= 100 mA
I
OUT
= 150 mA
Output Grounded
(Steady State)
V
OUT
V
OUT(nom)
- 5%
0.19
0.1
0.19
0.1
0.005
%/V
Load Regulation Error
(Note 9)
0.0025
%/mA
0.0004
1.5
0.002
Output AC Line Regulation
mV
P-P
PSRR
Power Supply Rejection Ratio
50
dB
40
I
Q
Quiescent Current
100
85
165
150
μA
155
140
0.003
0.4
20
45
60
600
250
200
1.5
2
35
70
100
Dropout Voltage (Note 10)
mV
I
SC
Short Circuit Current Limit
mA
I
OUT(PK)
Peak Output Current
550
300
mA
L
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