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參數(shù)資料
| 型號： | SC1458BEVB |
| 廠商： | Semtech Corporation |
| 英文描述： | Dual Output Low Noise LDO Linear Regulator |
| 中文描述： | 雙輸出低噪聲LDO線性穩(wěn)壓器 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 223K |
| 代理商： | SC1458BEVB |
SC1458
3
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3” x 4.5” 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Unless otherwise noted V
= 3.6V, C
= 2.2μF, C
OUTA
= C
OUTB
= 1μF, V
EN
= V
IN
, T
A
= -40 to +85°C. Typical values are at T
A
= 25°C. All specifications
apply to both LDOs unless otherwise noted.
Absolute Maximum Ratings
V
IN
(V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.5
V
EN
(V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V
IN
+ 0.3)
V
PGOOD
(V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V
IN
+ 0.3)
Pin Voltage — All Other Pins (V) . . . . . . . . . -0.3 to (V
IN
+ 0.3)
V
OUTA
, V
OUTB
, Short Circuit Duration . . . . . . . . .Continuous
ESD Protection Level
(1)
(kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Ambient Temperature Range (°C) . . . . . . . . -40 < T
A
< +85
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 < V
IN
< 5.5
Thermal Information
Thermal Resistance, Junction to Ambient
(2)
(°C/W) . . . .
50
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
Parameter
Conditions
Min
Typ
Max
Units
Input Supply Voltage Range
V
IN
2.5
5.5
V
Output Voltage Accuracy
ΔV
OUT
V
IN
= V
OUT
+ 0.3V to 5.5V, I
OUT
= 0 to 300mA
-3
3
%
Maximum Output Current
I
MAX
300
mA
Dropout Voltage
(1)
V
D
I
OUT
= 200mA, V
OUT
= 2.5V
100
200
mV
Shutdown Current
I
SD
T
A
= 25°C
0.1
1
μA
Quiescent Current
I
Q
I
OUTA
= I
OUTB
= 0mA, T
A
= 25°C
100
μA
Load Regulation
V
LOAD
I
OUT
= 1mA to I
MAX
20
mV
Line Regulation
V
LINE
I
OUT
= 1mA
-6
6
mV
Current Limit
I
LIM
350
850
mA
Noise
(2)
e
N
V
IN
= 3.7V, I
OUT
= 50mA , 10Hz < f < 100kHz,
C
BYP
= 22nF
50
μV
RMS
V
IN
= 3.7V, I
OUT
= 50mA , 10Hz < f < 100kHz
300
μV
RMS
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