參數(shù)資料
型號(hào)： MIC5332-2.8/2.8YMT
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： DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, DSO8
封裝： 2 X 2 MM, GREEN, MLF-8
文件頁(yè)數(shù)： 6/12頁(yè)
文件大?。?/td> 376K
代理商： MIC5332-2.8/2.8YMT
Micrel, Inc.
MIC5332
April 2008
3
M9999-042108-B
Absolute Maximum Ratings(1)
Supply Voltage (VIN)............................................. 0V to +6V
Enable Input Voltage (VEN1, VEN2) .......................... 0V to VIN
POR2 Voltage (VPOR2) .......................................... 0V to +6V
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)..................................... +2.3V to +5.5V
Enable Input Voltage (VEN1, VEN2) .......................... 0V to VIN
POR2 Voltage (VPOR2) ....................................... 0V to +5.5V
Junction Temperature (TJ) ........................–40°C to +125°C
Junction Thermal Resistance
2mm x 2mm Thin MLF-8 (
θJA) ...........................90°C/W
Electrical Characteristics(5)
VIN = VEN1 = VEN2 = VOUT + 1.0V, higher of the two regulator outputs; IOUT1 = IOUT2 = 100A; COUT1 = COUT2 = 1F;
TJ = 25°C, bold values indicate –40°C < TJ < +125°C; unless noted.
Parameter
Condition
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; IOUT = 100A
0.02
0.3
0.6
%/V
Load Regulation
IOUT = 100A to 300mA
0.2
0.5
%
Dropout Voltage
IOUT = 50mA
IOUT = 300mA
20
120
40
240
mV
Ground Current
VEN1 = High; VEN2 = Low; IOUT = 100A to 300mA
VEN1 = Low; VEN2 = High; IOUT = 100A to 300mA
VEN1 = VEN2 = High; IOUT1= 300mA, IOUT2 = 300mA
25
40
50
75
A
Ground Current in Shutdown
VEN1 = VEN2 < 0.2V
0.01
1.0
A
Ripple Rejection
f = 1kHz; COUT = 2.2F;
f = 20kHz; COUT = 2.2F;
65
45
dB
Current Limit
VOUT = 0V
350
550
800
mA
Output Voltage Noise
COUT=1F, 10Hz to 100kHz
50
VRMS
Enable Inputs (EN1/EN2 )
Logic Low
0.2
V
Enable Input Voltage
Logic High
1.2
V
VIL ≤ 0.2V
0.01
1.0
A
Enable Input Current
VIH ≥ 1.2V
0.01
1.0
A
Turn-on Time
Turn-on Time (LDO1 and 2)
COUT = 1F (Enable of First LDO)
COUT = 1F (Enable of Second LDO after First Enabled)
140
110
500
s
POR2 Output (LDO2 only)
Low Threshold, % of VOUT2 (POR2 ON)
88
%
VTH
High Threshold, % of VOUT2 (POR2 OFF)
98
%
VOL
POR2 Output Logic Low Voltage; IL = 250A
0.02
0.1
V
IPOR2
POR2 Leakage Current, POR2 OFF
–1.0
0.01
+1.0
A
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