MIC5323 Datasheet, PDF (4/15 Pages) Micrel Semiconductor – High PSRR Low Noise 300mA μCap Ultra-Low Dropout LDO Regulator

Micrel, Inc.
MIC5323
Absolute Maximum Ratings ⁽¹⁾
Supply Voltage (V_IN) ............................................... 0V to 6V
Enable Input Voltage (V_EN).....................................
Power Dissipation (P_D) ........................... Internally
0V to 6V
Limited⁽³⁾
Junction Temperature (T_J) ........................–40°C to +125°C
Lead Temperature (soldering, 5sec.)......................... 260°C
SEStoDraRgeatTinegm₍₄p_{)..e..r.a..t.u..r.e...(.T..s..)....................................................–..6..5..°.C....t.o...+..1..5. 20k°CV}
Operating Ratings ⁽²⁾
Supply voltage (V_IN) ....................................... 2.65V to 5.5V
Enable Input Voltage (V_EN)..................................... 0V to V_IN
Junction Temperature (T_J) ........................ –40°C to +125°C
Junction Thermal Resistance
2mm x 2mm Thin MLF^® 6 pin (θ_JA)....................93°C/W
TSOT-23-5 (θ_JA) ..............................................235°C/W
Electrical Characteristics ⁽⁵⁾
V_IN = V_OUT + 1.0V; C_OUT = 2.2µF; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Condition
Min Typ Max Units
Ouput Voltage Accuracy
Line Regulation
Load Regulation⁽⁶⁾
Dropout Voltage
Ground Pin Current⁽⁷⁾
Ground Pin Current in
Shutdown
Variation from nominal V_OUT, I_OUT = 100µA to 300mA
V_IN = V_OUT +1V to 5.5V
I_OUT = 100µA to 300mA
I_OUT = 50mA, V_OUT > 2.8V
I_OUT = 150mA, V_OUT > 2.8V
I_OUT = 300mA, V_OUT > 2.8V
I_OUT = 50mA, V_OUT =< 2.8V
I_OUT = 150mA, V_OUT =< 2.8V
I_OUT = 300mA, V_OUT =< 2.8V
I_OUT = 0 to 300mA
V_EN = 0V
–2.0
+2.0
%
0.02
0.3
%/V
0.1
0.5
%
20
35
mV
60
85
mV
120
170
mV
25
45
mV
75
110
mV
150
220
mV
90
150
µA
0.5
2
µA
Ripple Rejection
Current Limit
Output Voltage Noise
Turn-On Time
Enable Input Voltage
f = 1kHz; C_OUT = 2.2µF ceramic; C_BYP = 0.1µF
f = 10kHz; C_OUT = 2.2µF ceramic; C_BYP = 0.1µF
V_OUT = 0V
C_OUT =2.2µF, C_BYP = 0.1µF, 10Hz to 100kHz
C_OUT = 2.2µF; C_BYP= 0.1µF; I_OUT = 300mA
Logic Low
80
65
350 600
20
30
dB
dB
900
mA
µVrms
150
µs
0.2
V
Logic High
1.2
V
Enable Input Current
V_IL ≤ 0.2V
V_IH ≥ 1.2V
0.01
1
µA
0.01
1
µA
Notes:
1.
2.
3.
4.
5.
6.
7.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
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.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
Specification for packaged product only.
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.
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.
November 2011
4
M9999-110311B