Micrel, Inc.
MIC2225
 
 
February 2008 
5
M9999-022008-D
 
Electrical Characteristics LDO
(4)
 
C
OUTLDO
 = 2.2礔, I
OUTLDO
 = 100礎; T
J
 = 25癈, bold values indicate 40癈 <
 T
J
 <
 +125癈; unless noted.
Parameter
Condition
Min    Typ    Max    Units
Input Voltage
 
2.7          5.5     V
Variation from nominal V
OUT
 
2.0          +2.0     %
Output Voltage Accuracy
Variation from nominal V
OUT
; 40癈 to +125癈
3.0          +3.0     %
Line Regulation
V
IN
 = V
OUT
 +1V to 5.5V; I
OUT
 = 100礎
     0.2      
%
Turn-on Time
I
LOAD
 = 300mA
     30     
Load Regulation
I
OUT
 = 100礎 to 300mA @ V
IN
 = V
OUT
 + 1
     0.70      
%
Dropout Voltage, Note 5
I
OUT
 = 300mA @ V
IN
 = 2.7V
     210          mV
Ripple Rejection
f = 1kHz; C
OUT
 = 2.2礔
f = 20kHz; C
OUT
 = 2.2礔
     43 
17
 
dB
dB
Current Limit
V
OUT
 = 0V
400     
     mA
Output Voltage Noise
C
OUT
= 2.2礔, 10Hz to 100kHz
     470          礦
RMS
 
 
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
5. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value that is initially measured at
  a 1V differential. For outputs below 2.7V, the dropout voltage is the input-to-output voltage differential with a minimum input voltage of 2.7V.
 
 
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