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参数资料
| 型号： | MIC5312-1.8/2.8BML |
| 厂商： | MICREL INC |
| 元件分类： | 固定正电压多路输出LDO稳压器 |
| 英文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, DSO10 |
| 封装： | 3 X 3 MM, MLF-10 |
| 文件页数： | 7/12页 |
| 文件大小： | 476K |
| 代理商： | MIC5312-1.8/2.8BML |
Micrel, Inc.
MIC5312
January 2005
4
M9999-011205
(408) 955-1690
Absolute Maximum Ratings
(1)
Supply Input Voltage (VIN) .............................. 0V to 6V
Enable Input Voltage (VEN)............................. 0V to 6V
LowQ
TM Input Voltage (V
LowQ
TM) ..................... 0V to 6V
Power Dissipation (PD) ..................Internally Limited
(3)
Junction Temperature ....................... -40°C to +125°C
Lead Temperature (soldering, 5sec.) .................260°C
Storage Temperature (Ts) ................. -65°C to +150°C
Operating Ratings
(2)
Supply Input Voltage (VIN)..........................2.5V to 5.5V
Enable Input Voltage (EN1/EN2/LowQ
TM
) ................ 0V to VIN
Junction Temperature (TJI).................. -40°C to +125°C
Package Thermal Resistance
MLF-10 (
θ
JA) ................................................. 63°C/W
Electrical Characteristics (Full Power Mode)
VIN = VOUT + 1.0V for higher output of the regulator pair; COUT = 2.2F, IOUT = 100A; TJ = 25°C, bold values indicate
-40°C to +125, unless noted.
Parameter
Conditions
Min
Typ
Max
Units
Variation from nominal VOUT
-1.0
+1.0
%
Output Voltage Accuracy
Variation from nominal VOUT; -40°C to +125°C
-2.0
+2.0
%
Line Regulation
VIN = VOUT +1V to 5.5V
0.02
0.3
0.6
%/V
Load Regulation
IOUT = 100A to 150mA
IOUT = 100A to 300mA
0.35
0.7
1.0
1.5
%
Dropout Voltage
IOUT = 150mA
IOUT = 300mA
60
120
240
mV
Ground Pin Current
IOUT1 = IOUT2 = 100A to 300mA
28
45
50
A
Ground Pin Current in
Shutdown
VEN < 0.2V
0.1
A
Ripple Rejection
f = up to 1kHz; COUT = 2.2F ceramic; CBYP = 10nF
f = 1kHz – 20kHz; COUT = 2.2F ceramic; CBYP = 10nF
65
35
dB
Current Limit
VOUT = 0V (Both Regulators)
350
450
700
mA
Output Voltage Noise
COUT = 2.2F, CBYP = 0.01F, 10Hz to 100kHz
45
Vrms
Enable and LowQ
TM
Input (EN1/EN2/LowQ
TM
)
Logic Low
0.2
V
Enable Input Voltage
Logic High
1.0
V
VIL < 0.2V
0.1
1
A
Enable Input Current
VIH > 1.0V
0.1
1
A
Turn-on Time
COUT = 2.2F; CBYP = 0.01F
300
500
s
Light Load Response
Into Light Load
50
s
Response Time
(4)
Out of Light Load
50
s
POR Output
Low Threshold, % of VOUT(Flag ON)
90
%
VTH
High Threshold, % of VOUT (Flag OFF)
97
%
VOL
POR Output Logic Low Voltage; IL = 250A
0.01
0.1
V
IPOR
Flag Leakage Current, Flag OFF
–1
0.01
+1
A
SET INPUT
SET Pin Current Source
VSET = 0V
0.75
1.25
1.75
V
SET Pin Threshold Voltage
1.25
V
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