Micrel, Inc. MIC49500
July 2007
4
M9999-071307
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ............................................. 6.5V
Bias Supply Voltage (V
BIAS
) .................................. 6.5V
Enable Input Voltage (V
EN
)................................... 6.5V
Power Dissipation............................. Internally Limited
Junction Temperature .................-40°C ≤ T
J
≤ +125°C
Storage Temperature (TS) ........... -65°C ≤ TJ ≤ 150°C
Lead Temperature (soldering, 5 sec.)................260°C
ESD Rating
(3)
.........................................................3kV
Operating Ratings
(2)
Supply voltage (V
IN
).......................................1.4V to 6V
Bias Supply Voltage (V
BIAS
)..............................3V to 6V
Enable Input Voltage (V
EN
)........................... 0V to V
BIAS
Junction Temperature Range........-40°C ≤ T
J
≤ +125°C
Package Thermal Resistance
S-Pak (θ
JC
) ................................................. 2°C/W
TO-263 (θ
JC
) ............................................... 2°C/W
Electrical Characteristics
(4)
V
IN
= V
OUT
+ 1.0V; V
BIAS
= V
OUT
+ 2.1V; C
OUT
= 10µF; I
OUT
= 10mA; T
J
= 25°C,
bold
values indicate –40°C to +125°C,
unless noted.
Parameter Conditions Min Typ Max Units
Output Voltage Accuracy At 25°C, fixed voltage options
Over temperature range
–1
–2
+1
+2
%
%
Output Voltage Line
Regulation
V
IN
= V
OUT
+ 1V to 6V -0.1 +0.1
%/V
Output Voltage Load
Regulation
I
L
= 10mA to 5A 0.2
1.0
%
V
IN
– V
O
; Dropout Voltage I
L
= 2.5A
I
L
= 5.0A
145
290
300
500
mV
mV
V
BIAS
– V
O
; Dropout Voltage I
L
= 2.5A
I
L
= 5.0A
1.5
1.7
2.0
2.1
V
V
Ground Pin Current V
OUT
= 1.2V; I
L
= 0mA
V
OUT
= 1.2V; I
L
= 5.0A
0.7V ≤ V
OUT
≤ 1.8V
1.8V < V
OUT
≤ 3.3V
55
55
55
75
90
90
130
mA
mA
mA
mA
Ground Pin Current in
Shutdown
V
IL
< 0.6V 0.1
5
µA
Current thru V
BIAS
I
L
= 0mA
I
L
= 5.0A
30
70
50
150
mA
mA
Current Limit V
OUT
= 0V 5.5 7.5 9.5 A
Feedback Current 50
1000
nA
Enable Input
Enable Input Threshold Regulator enable
Regulator shutdown
1.6
1.2
1.15
0.6
V
V
Enable Hysteresis
20
50
150
mV
Enable Pin Input Current 0.1
5
µA
Turn-on Time
C
OUT
= 10µF; Note 5
10
45
µs
Reference Voltage (Adjustable Output Only)
T
A
= 25°C 0.693 0.7 0.707 V V
REF
–40°C < T
A
< 125°C
0.686 0.714
V
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. Turn-on time is measured from 10% of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator.
