MIC49500_07 Datasheet, PDF (4/11 Pages) Micrel Semiconductor – 5A Dual Supply, Low Voltage, High Bandwidth LDO

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ............................................. 6.5V
Bias Supply Voltage (V_BIAS) .................................. 6.5V
Enable Input Voltage (V_EN)................................... 6.5V
Power Dissipation............................. Internally Limited
Junction Temperature ................. -40°C ≤ T_J ≤ +125°C
Storage Temperature (TS) ........... -65°C ≤ TJ ≤ 150°C
Lead Temperature (soldering, 5 sec.) ................260°C
ESD Rating⁽³⁾ .........................................................3kV
MIC49500
Operating Ratings⁽²⁾
Supply voltage (V_IN).......................................1.4V to 6V
Bias Supply Voltage (V_BIAS)..............................3V to 6V
Enable Input Voltage (V_EN)........................... 0V to V_BIAS
Junction Temperature Range........-40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
S-Pak (θ_JC) ................................................. 2°C/W
TO-263 (θ_JC) ............................................... 2°C/W
Electrical Characteristics⁽⁴⁾
V_IN = V_OUT + 1.0V; V_BIAS = V_OUT + 2.1V; C_OUT = 10µF; I_OUT = 10mA; T_J = 25°C, bold values indicate –40°C to +125°C,
unless noted.
Parameter
Output Voltage Accuracy
Conditions
At 25°C, fixed voltage options
Over temperature range
Min Typ Max Units
–1
+1
%
–2
+2
%
Output Voltage Line
Regulation
Output Voltage Load
Regulation
V_IN – V_O; Dropout Voltage
V_BIAS – V_O; Dropout Voltage
Ground Pin Current
Ground Pin Current in
Shutdown
V_IN = V_OUT + 1V to 6V
I_L = 10mA to 5A
I_L = 2.5A
I_L = 5.0A
I_L = 2.5A
I_L = 5.0A
V_OUT = 1.2V; I_L = 0mA
V_OUT = 1.2V; I_L = 5.0A
0.7V ≤ V_OUT ≤ 1.8V
1.8V < V_OUT ≤ 3.3V
V_IL < 0.6V
-0.1
+0.1 %/V
0.2 1.0
%
145 300 mV
290 500 mV
1.5 2.0
V
1.7 2.1
V
55
mA
55
90
mA
55
90
mA
75 130 mA
0.1
5
µA
Current thru V_BIAS
Current Limit
Feedback Current
I_L = 0mA
I_L = 5.0A
V_OUT = 0V
30
50
mA
70 150 mA
5.5 7.5 9.5
A
50 1000 nA
Enable Input
Enable Input Threshold
Regulator enable
1.6 1.2
V
Regulator shutdown
1.15 0.6
V
Enable Hysteresis
20
50 150
mV
Enable Pin Input Current
0.1
5
µA
Turn-on Time
C_OUT = 10µF; Note 5
Reference Voltage (Adjustable Output Only)
10
45
µs
V_REF
T_A = 25°C
–40°C < T_A < 125°C
0.693 0.7 0.707 V
0.686
0.714 V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
5. Turn-on time is measured from 10% of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator.
July 2007
4
M9999-071307