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Micrel, Inc.
MIC5159
 
 
June 2006 
3
M9999-062706
 
 
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
)....................................................+6.0V
Enable Input Voltage (V
EN
)..........................................+6.0V
Power Dissipation (P
D(max)
)........................................Note 3
Storage Temperature (T
s
).........................65癈 to +150癈
Lead Temperature (soldering, 5 sec.)........................260癈
EDS Rating
(4)
..................................................................2kV
Operating Ratings
(2)
Supply voltage (V
IN
) ...................................+1.65V to +5.5V
Enable Input Voltage (V
EN
)................................ 0V to +5.5V
Junction Temperature (T
J
) ..................40癈 d T
J
 d +125癈
Package Thermal Resistance
     SOT-23-6 (?/DIV>
JA
).................................................235癈/W
 
 
 
 
Electrical Characteristics
(5)
 
T
A
 = 25癈 with V
IN
 = V
OUT
 + 1V; V
EN
 = 1.2V, C
IN
 = C
OUT
 = 10礔, ceramic, I
OUT
 = 10mA; bold values indicate 40癈 < T
J
 < +125癈;
unless otherwise specified, Note 3
Parameter
Condition
Min
Typ
Max
Units
At 25癈
1
 
+1
%
Output Voltage Accuracy
Over temperature range
2
 
+2
%
Output Voltage Line Regulation
V
IN
 = V
OUT
 + 1.0V to 5.5V
0.1
0.007
+0.1
%/V
Output Voltage Load Regulation     I
L
 = 10mA to 1.0A
 
0.2
1.0
%
V
EN
 d 0.2V (MIC5159 OFF)
 
15
30
礎
Ground Pin Current
(6)
 
V
EN
 e 1.2V (MIC5159 ON)
 
10
20
mA
Adjust Pin Bias Current
 
 
 
1
礎
(PFET fully ON); V
IN
 = 5.0V
4.5
 
 
V
(PFET fully ON); V
IN
 = 3.3V
3.1
 
 
V
Maximum V
GS
 
(PFET fully ON); V
IN
 = 2.5V
2.3
 
 
V
Current-Limit Threshold
V
IN
  V
IS
 
40
50
65
mV
Start-up Time
V
EN
 = V
IN
 
 
30
150
祍
Enable Input
Regulator enabled
1.2
 
 
V
Regulator shutdown
 
 
0.2
V
Enable Input Threshold
Enable hysteresis
20
50
250
mV
Independent of state
 
0.01
 
nA
Enable Pin Input Current
 
 
 
1
礎
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. P
D(max)
 = (T
J(max)
  TA) ??/DIV>
JA
, where ?/DIV>
JA
 depends upon the printed circuit layout, see Applications Information.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
6. I
GND
 is the quiescent current. I
IN
 = I
GND
 + I
OUT
.
 
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