MIC5325 Datasheet, PDF (3/11 Pages) Micrel Semiconductor – Low VIN/VOUT 400mA ULDO™ with Ultra-Low IQ

Micrel, Inc.
MIC5325
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ............................................ 0V to V_BIAS
Bias Voltage (V_BIAS). ............................................... 0V to 6V
Enable Voltage (V_EN)........................................... 0V to V_BIAS
Power Dissipation (P_D) ........................... Internally Limited⁽³⁾
Lead Temperature (soldering, 10 µsec.).................... 260°C
Storage Temperature (T_s) .........................–65°C to +150°C
ESD Rating⁽⁴⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN)......................................... 1.7V to V_BIAS
Bias Voltage (V_BIAS).......................................... 2.5V to 5.5V
Enable Voltage (V_EN)........................................... 0V to V_BIAS
Junction Temperature (T_J) ........................ –40°C to +125°C
Junction Thermal Resistance
2x2 Thin MLF-6 (θ_JA) .........................................90°C/W
Electrical Characteristics⁽⁵⁾
V_BIAS = 3.6V; V_IN = V_OUT + 1V; 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
%
Reference Voltage
ADJ pin voltage
0.7595 0.775 0.7905
V
V_BIAS Line Regulation
V_BIAS = 3.6V to 5.5V, V_IN = V_OUT +1V
0.03
0.6
%/V
V_IN Line Regulation
V_BIAS = 3.6V to 5.5V, V_IN = V_OUT +1V to 5.5V
0.02
0.6
%/V
Load Regulation
I_OUT = 100µA to 400mA
0.3
2
%
V_IN Dropout Voltage
I_OUT = 400mA
110
250
mV
Ground Pin Current
I_OUT = 100µA to 400mA, V_IN = V_EN, V_BIAS = 5.5V
35
55
µA
Ground Pin Current in Shutdown V_EN ≤ 0.2V
0.01
1
µA
Ripple Rejection
f = up to 1kHz; C_OUT = 1.0µF; no C_BYP
f = up to 1kHz; C_OUT = 1.0µF; C_BYP = 10nF
f = 1kHz – 20kHz; C_OUT = 1.0uF; C_BYP = 10nF
60
dB
50
65
dB
40
dB
Current Limit
V_OUT = 0V
450
680
mA
Output Voltage Noise
Enable Inputs (EN)
C_OUT = 1µF, C_BYP = 10nF, 10Hz to 100kHz
30
µV_RMS
Enable Input Voltage
Logic Low
0.2
V
Logic High
1.2
V
Enable Input Current
V_IL ≤ 0.2V
0.01
µA
V_IH ≥ 1.0V
0.02
µA
Turn-on Time
C_OUT = 1µF; C_BYP = 10nF
150
500
µs
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, 1.5k in series with 100pF.
5. Specification for packaged product only.
April 2008
3
M9999-040308-A