Micrel, Inc. MIC5305
June 2007 4
M9999-062507
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
)............................................... 0V to 6V
Enable Input Voltage (V
EN
)..................................... 0V to 6V
Power Dissipation (P
D
) ........................... Internally Limited
(3)
Junction Temperature (T
J
) ........................–40°C to +125°C
Lead Temperature (soldering, 5sec.)......................... 260°C
Storage Temperature (T
s
) .........................–65°C to +150°C
EDS Rating
(4)
.................................................................. 2kV
Operating Ratings
(2)
Supply voltage (V
IN
) ....................................... 2.25V to 5.5V
Enable Input Voltage (V
EN
)..................................... 0V to V
IN
Junction Temperature (T
J
) ........................–40°C to +125°C
Junction Thermal Resistance
MLF-6 (θ
JA
) ........................................................93°C/W
Thin MLF-6 (θ
JA
)................................................93°C/W
TSOT-23-5 (θ
JA
) ..............................................235°C/W
Electrical Characteristics
(5)
V
IN
= V
OUT
+ 1.0V; C
OUT
= 1.0µF; I
OUT
= 100µA; T
J
= 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter Condition Min Typ Max Units
Variation from nominal V
OUT
–1.0 +1.0 % Output Voltage Accuracy
Variation from nominal V
OUT
, I
OUT
= 100mA to 150mA
–2.0
+2.0
%
Output Voltage Temp.
Coefficient
40
pm/°C
Line Regulation V
IN
= V
OUT
+1V to 5.5V
0.02
0.3
%/V
Load Regulation
(6)
I
OUT
= 100µA to 150mA
0.1
0.5
%
I
OUT
= 50mA, V
OUT
> 2.8V
20
35
mV
I
OUT
= 150mA, V
OUT
> 2.8V
60
85
mV
I
OUT
= 50mA, V
OUT
> 2.8V
27
45
mV
Dropout Voltage
(7)
I
OUT
= 150mA, V
OUT
> 2.8V
85
110
mV
Ground Pin Current
(8)
I
OUT
= 0 to 150mA
90
150
µA
Ground Pin Current in
Shutdown
V
EN
≤ 0.2V
0.5
µA
f = up to 1kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 0.1µF
85
dB Ripple Rejection
f = 10kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 0.1µF
65
dB
Current Limit V
OUT
= 0V
300
600
900
mA
Output Voltage Noise C
OUT
=1µF, C
BYP
= 0.1µF, 10Hz to 100kHz
20
µVrms
Turn-On Time C
OUT
= 1µF; C
BYP
= 0.1µF; I
OUT
= 150mA
30
100
µs
Enable Input
Logic Low (Regulator Shutdown)
0.2
V Enable Input Voltage
Logic High (Regulator Enabled)
1.0
V
V
IL
≤ 0.2V (Regulator Shutdown) 0.01
1
µA Enable Input Current
V
IH
≥ 1.0V (Regulator Enabled) 0.01
1
µA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D(max)
= (T
J(max)
- T
A
) / θ
JA
. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model.
5. Specification for packaged product only.
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are
covered by the thermal regulation specification.
7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal V
OUT
. For outputs below 2.25V,
dropout voltage is the input-to-output differential with the minimum input voltage 2.25V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
