LX8820-33CLM データシートの表示（PDF） - Microsemi Corporation
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LX8820-33CLM Datasheet PDF : 6 Pages
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LX8820
®
3.3V/1.0A Ultra Low Dropout Regulator
TM
PRODUCTION DATA SHEET
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C ≤ TA ≤ 125°C except where
otherwise noted and the following test conditions: VIN = 5V, IOUT = 10mA, C1= 4.7µF (ceramic), C2= 4.7µF (ceramic), & TJ = TA using low
duty cycling methods.
Parameter
Symbol
Test Conditions
LX8820-33
Units
Min Typ Max
` Fixed Output (3.3V)
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
VOUT
5mA < IOUT < 1A, 4.75V < VIN < 5.25V
∆VOUT(VIN) 4.5V < VIN < 5.5V, 5mA < IOUT < 1A
∆VOUT(IOUT) 10mA < IOUT < 1A, VIN = 4.75V
ILOAD = 1A, ∆VOUT = -1%
VDO
ILOAD = 1A, VIN = 4.0V
3.234 3.300 3.366 V
4
9
mV
2
15
mV
0.45
V
3.0
3.3 3.383
Transient Response;
VOUT Overshoot at Start-Up
VOUT
VIN step 0V to 5V; tr ≥ 1µs; 10mA < IOUT < 1A
Note 2
3.63
V
Transient Response;
VOUT Droop to Step Load
Current Limit
Minimum Load Current
Quiescent Current
Ripple Rejection
RMS Output Noise (% of VOUT)
Thermal Shutdown
VOUT
IOUT (MAX)
IL
IQ
PSRR
VOUT (RMS)
TJSD
VIN = 5V; tr ≥ 1µs; 10mA < IOUT < 1A
Note 2
VIN < 5.5V
Note 1
IOUT =5mA
IOUT =1000mA, VIN < 7V
f=120Hz, VIN = 5V
10Hz < f < 10kHz
3.0
V
1.0
1.5
A
0
0.1
mA
205
300
µA
550
650
50
75
dB
0.003
%/V
140 160
°C
Note 1: Minimum load current is defined as the amount of output current required to maintain regulation.
Note 2: Guaranteed by design.
BLOCK DIAGRAM
VIN
C1
10µF
Bias
VOUT
C2
10µF
+
-
GND
1.25V
VREF
LX8820
Figure 1 – Fixed Output
Note: Application Circuit above using ceramic capacitors
Copyright © 2004
Rev. 1.1, 2005-02-24
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
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