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參數資料
| 型號： | MIC5350-3.3/2.8YMT |
| 廠商： | MICREL INC |
| 元件分類： | 固定正電壓多路輸出LDO穩(wěn)壓器 |
| 英文描述： | FIXED POSITIVE LDO REGULATOR, PDSO8 |
| 封裝： | 2 X 2 MM, GREEN, TMLF-8 |
| 文件頁數： | 7/12頁 |
| 文件大小： | 439K |
| 代理商： | MIC5350-3.3/2.8YMT |
Micrel, Inc.
MIC5350
June 2010
4
M9999-060410
Absolute Maximum Ratings(1)
Supply Voltage (VIN)........................................ 0.3V to +6V
Enable Input Voltage (VEN1 , VEN2).....................0.3V to VIN
Power Dissipation ..................................Internally Limited
(3)
Lead Temperature (soldering, 3sec).......................... 260°C
Storage Temperature (TS).........................65°C to +150°C
ESD Rating
(4) ................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN)..................................... +2.6V to +5.5V
Enable Input Voltage (VEN1, VEN2) .......................... 0V to VIN
Junction Temperature ............................... –40°C to +125°C
Junction Thermal Resistance
8-Pin 2mm x 2mm Thin MLF
(θJA) ...................90°C/W
Electrical Characteristics(5)
VIN = VEN1 = VEN2 = VOUT + 1.0V; higher of the two regulator outputs, IOUTLDO1 = IOUTLDO2 = 100A; COUT1 = COUT2 = 2.2F; CBYP = 0.1F;
TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Conditions
Min.
Typ.
Max.
Units
Variation from nominal VOUT
-2.0
+2.0
Output Voltage Accuracy
Variation from nominal VOUT; –40°C to +125°C
-3.0
+3.0
%
Line Regulation
VIN = VOUT + 1V to 5.5V; IOUT = 100A
0.05
0.3
0.6
%/V
Load Regulation
IOUT1, 2 = 100A to 300mA
IOUT2 =100A to 500mA
0.5
0.7
2.0
2.5
%
Dropout Voltage
(6)
IOUT1, 2 = 100A
IOUT1, 2 = 50mA
IOUT1, 2 = 300mA
IOUT2 = 500mA
0.1
12
75
125
50
200
300
mV
Ground Current
VEN1 ≥ 1.2V; VEN2 ≤ 0.2V; IOUT = 0mA to 300mA
VEN1 ≤ 0.2V; VEN2 ≥ 1.2V; IOUT2 = 0mA to 500mA
VEN1 = VEN2 = 1.2V; IOUT1 = 300mA, IOUT2 = 500mA
95
130
175
240
A
Ground Current in Shutdown
VEN1 = VEN2 = 0V
0.01
2
A
Ripple Rejection
f = 1kHz; COUT = 2.2F; CBYP = 0.1F
f = 20kHz; COUT = 2.2F; CBYP = 0.1F
50
35
dB
VOUT1 = 0V
350
560
850
Current Limit
VOUT2 = 0V
550
950
1500
mA
Output Voltage Noise
COUT = 2.2F; CBYP = 0.1F; 10Hz to 100kHz
30
VRMS
Enable Inputs (EN1 / EN2)
Logic Low
0.2
Enable Input Voltage
Logic High
1.2
V
VIL ≤ 0.2V
0.01
Enable Input Current
VIH ≥ 1.2V
0.01
A
Turn-on Time (See Timing Diagram)
Turn-on Time (LDO1 and 2)
COUT = 2.2F; CBYP = 0.01F
30
100
s
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model 1.5k in series with 100pF.
5. Specification for packaged product only.
6. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal VOUT. For outputs below
2.6V, the dropout voltage is the input-to-output differential with the minimum input voltage 2.6V.
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