Datasheet

Micrel, Inc.
MIC5501/2/3/4
April 20, 2015
4
Revision 2.3
Absolute Maximum Ratings
(5)
Supply Voltage (V
IN
) .......................................... –0.3V to 6V
Enable Voltage (V
EN
). ........................................ –0.3V to V
IN
Power Dissipation (P
D
) ........................... Internally Limited
(7)
Lead Temperature (soldering, 10s) ............................ 260°C
Junction Temperature (T
J
) ........................ –40°C to +150°C
Storage Temperature (T
s
) ......................... –65°C to +150°C
ESD Rating
(8)
.................................................................. 3kV
Operating Ratings
(6)
Supply Voltage (V
IN
) ......................................... 2.5V to 5.5V
Enable Voltage (V
EN
) .............................................. 0V to V
IN
Junction Temperature (T
J
) ........................ –40°C to +125°C
Junction Thermal Resistance
1mm × 1mm Thin DFN-4 (θ
JA
) ......................... 250°C/W
5-pin SOT23 (θ
JA
) ............................................ 253°C/W
Electrical Characteristics
(9)
V
IN
= V
EN
= V
OUT
+ 1V; C
IN
= C
OUT
= 1µF; I
OUT
= 100µA; T
J
= 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter Condition Min. Typ. Max. Units
Output Voltage Accuracy
Variation from nominal V
OUT
–2.0 +2.0 %
Variation from nominal V
OUT
; –40°C to +125°C
–3.0 +3.0
%
Line Regulation V
IN
= V
OUT
+1V to 5.5V; I
OUT
= 100µA 0.02
0.3
%/V
Load Regulation
(10)
I
OUT
= 100µA to 300mA 8 40 mV
Dropout Voltage
(11)
I
OUT
= 150mA
I
OUT
= 300mA
80
160
190
380
mV
mV
Ground Pin Current
(12)
I
OUT
= 0mA
I
OUT
= 300mA
38
42
55
65
µA
Ground Pin Current in Shutdown V
EN
= 0V 0.05 1 µA
Ripple Rejection f = 1kHz; C
OUT
= 1µF 60 dB
Current Limit V
OUT
= 0V 400 630 900 mA
Output Voltage Noise C
OUT
= 1µF, 10Hz to 100kHz 175 µV
RMS
Auto-Discharge NFET
Resistance
MIC5502, MIC5504 Only; V
EN
= 0V; V
IN
= 3.6V;
I
OUT
= –3mA
25 Ω
Enable Input
Enable Pull-Down Resistor For MIC5503 and MIC5504 use only 4 MΩ
Enable Input Voltage
Logic Low
0.2
V
Logic High
1.2
V
Enable Input Current
MIC5501, MIC5502
V
EN
= 0V 0.01 1 µA
V
EN
= 5.5V 0.01 1 µA
Enable Input Current
MIC5503, MIC5504
V
EN
= 0V 0.01 1 µA
V
EN
= 5.5V 1.4 2 µA
Turn-On Time C
OUT
= 1µF; I
OUT
= 150mA 50
125
µs
Notes:
5. Exceeding the absolute maximum rating may damage the device.
6. The device is not guaranteed to function outside its operating rating.
7. 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.
8. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
9. Specification for packaged product only.
10. 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.
11. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
12. 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.