MIC5332_08 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – Micro-Power High Performance Dual 300mA ULDO™

Micrel, Inc.
MIC5332
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ............................................. 0V to +6V
Enable Input Voltage (V_EN1, V_EN2) .......................... 0V to V_IN
POR2 Voltage (V_POR2) .......................................... 0V to +6V
Power Dissipation .................................. Internally Limited⁽³⁾
Lead Temperature (soldering, 3sec.)......................... 260°C
Storage Temperature (T_s) .........................–65°C to +150°C
ESD Rating⁽⁴⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN)..................................... +2.3V to +5.5V
Enable Input Voltage (V_EN1, V_EN2) .......................... 0V to V_IN
POR2 Voltage (V_POR2) ....................................... 0V to +5.5V
Junction Temperature (T_J) ........................ –40°C to +125°C
Junction Thermal Resistance
2mm x 2mm Thin MLF-8 (θ_JA) ...........................90°C/W
Electrical Characteristics⁽⁵⁾
V_IN = V_EN1 = V_EN2 = V_OUT + 1.0V, higher of the two regulator outputs; I_OUT1 = I_OUT2 = 100µA; C_OUT1 = C_OUT2 = 1µF;
T_J = 25°C, bold values indicate –40°C < T_J < +125°C; unless noted.
Parameter
Condition
Min Typ Max
Output Voltage Accuracy
Variation from nominal V_OUT
–1.0
+1.0
Variation from nominal V_OUT; –40°C to +125°C
–2.0
+2.0
Line Regulation
V_IN = V_OUT +1V to 5.5V; I_OUT = 100µA
0.02
0.3
0.6
Load Regulation
I_OUT = 100µA to 300mA
0.2
0.5
Dropout Voltage
Ground Current
I_OUT = 50mA
I_OUT = 300mA
V_EN1 = High; V_EN2 = Low; I_OUT = 100µA to 300mA
V_EN1 = Low; V_EN2 = High; I_OUT = 100µA to 300mA
V_EN1 = V_EN2 = High; I_OUT1= 300mA, I_OUT2 = 300mA
20
40
120
240
25
50
25
50
40
75
Ground Current in Shutdown
V_EN1 = V_EN2 < 0.2V
0.01
1.0
Ripple Rejection
f = 1kHz; C_OUT = 2.2µF;
65
f = 20kHz; C_OUT = 2.2µF;
45
Current Limit
V_OUT = 0V
350 550
800
Output Voltage Noise
C_OUT=1µF, 10Hz to 100kHz
50
Enable Inputs (EN1/EN2 )
Enable Input Voltage
Logic Low
0.2
Logic High
1.2
Enable Input Current
V_IL ≤ 0.2V
V_IH ≥ 1.2V
0.01
1.0
0.01
1.0
Turn-on Time
Turn-on Time (LDO1 and 2)
C_OUT = 1µF (Enable of First LDO)
C_OUT = 1µF (Enable of Second LDO after First Enabled)
140
500
110
500
POR2 Output (LDO2 only)
V_TH
Low Threshold, % of V_OUT2 (POR2 ON)
88
High Threshold, % of V_OUT2 (POR2 OFF)
98
V_OL
POR2 Output Logic Low Voltage; IL = 250µA
0.02
0.1
I_POR2
POR2 Leakage Current, POR2 OFF
–1.0 0.01 +1.0
Units
%
%
%/V
%/V
%
mV
mV
µA
µA
µA
µA
dB
dB
mA
µV_RMS
V
V
µA
µA
µs
µs
%
%
V
µA
April 2008
3
M9999-042108-B