參數(shù)資料
型號: MIC5376-2.8YMT
廠商: MICREL INC
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 2.8 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, DSO4
封裝: 1 X 1 MM, GREEN, MLF-4
文件頁數(shù): 14/18頁
文件大?。?/td> 339K
代理商: MIC5376-2.8YMT
Micrel, Inc.
MIC5375/6/7/8
January 2009
5
M9999-011309-B
Absolute Maximum Ratings
(1)
Supply Voltage (VIN)............................................... 0V to 6V
Enable Voltage (VEN).............................................. 0V to VIN
Power Dissipation (PD)........................... Internally Limited
(3)
Lead Temperature (soldering, 5 sec)......................... 260°C
Junction Temperature (TJ) ........................–40°C to +125°C
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating
(4).................................................................. 2kV
Operating Ratings
(2)
Supply Voltage (VIN)......................................... 2.5V to 5.5V
Enable Voltage (VEN).............................................. 0V to VIN
Junction Temperature (TJ) ........................–40°C to +125°C
Junction Thermal Resistance
1mm x 1mm Thin MLF-4 (
θJA) .........................250°C/W
1.2mm x 1.2mm Thin MLF-8(
θJA) ....................250°C/W
SC-70-5 (
θJA) ................................................256.5°C/W
Electrical Characteristics
(5)
VIN = VEN = VOUT + 1V; CIN = COUT = 1F for Vout ≥ 2.5V, CIN = COUT = 2.2F for VOUT < 2.5V; IOUT = 100A; TJ = 25°C,
bold
values indicate –40°C to +125°C, unless noted.
Parameter
Condition
Min
Typ
Max
Units
Variation from nominal VOUT
–2.0
+2.0
%
Output Voltage Accuracy
Variation from nominal VOUT
–3.0
+3.0
%
Line Regulation
VIN = VOUT +1V to 5.5V; IOUT = 100A
0.02
0.3
%
Load Regulation
(6)
IOUT = 100A to 150mA
0.3
1.0
%
Dropout Voltage
(7)
IOUT = 50mA
IOUT = 150mA
45
120
100
200
mV
Ground Pin Current
(8)
IOUT = 0mA
29
45
A
Ground Pin Current in Shutdown
VEN ≤ 0.2V
0.05
1
A
Ripple Rejection
f = 1kHz; COUT = 1F
f = 10kHz; COUT = 1F
60
50
dB
Current Limit
VOUT = 0V
200
370
550
mA
Output Voltage Noise
COUT = 1F, 10Hz to 100kHz
200
VRMS
Auto-Discharge NFET
Resistance
VEN = 0V; VIN = 3.6V
30
Reference Voltage (MIC5377/8)
Reference Voltage Accuracy
0.97
1
1.03
V
Adjust Pin Input Current
0.01
μA
Enable Input
Logic Low
0.2
V
Enable Input Voltage
Logic High
1.2
V
VIL ≤ 0.2V
0.01
1
A
Enable Input Current
VIH ≥ 1.2V
0.01
1
A
Turn-on Time
COUT = 1F; IOUT = 150mA
45
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. Regulation is measured at constant junction temperature using low duty cycle pulse testing.
7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
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