MIC5281_11 Datasheet, PDF (4/21 Pages) Micrel Semiconductor – 120VIN, 25mA, Ultra-Low IQ, High-PSRR Linear Regulator

Micrel, Inc.
MIC5281
Absolute Maximum Ratings⁽¹⁾
V_IN to GND................................................... –0.3V to +125V
V_CPSRR to GND..................................................–0.3 to +14V
V_FB, V_SNS, V_OUT to GND ................................... –0.3V to +6V
Lead Temperature (soldering, 10s).......................... +260°C
Junction Temperature ......................... –40°C ≤ T_J ≤ +125°C
Storage Temperature .........................–65°C ≤ T_A ≤ +150°C
ESD Ratings⁽⁴⁾
HBM ......................................................................... 2kV
MM .........................................................................200V
Operating Ratings⁽²⁾
V_IN ................................................................. +6V to +120V
V_OUT Adjust Range ..................................... +1.27V to +5.5V
Junction Temperature ......................... –40°C ≤ T_J ≤ +125°C
Power Dissipation (P_D)........................... Internally Limited⁽³⁾
Junction Thermal Resistance (θ_JA)
8-pin ePad MSOP..............................................64°C/W
8-pin MSOP .....................................................160°C/W
Electrical Characteristics⁽⁵⁾
V_IN = 12V, C_IN = 1.0µF, C_PSRR = 0.1µF, C_OUT = 10µF, V_OUT = 5.0V or 3.3V, I_OUT = 100µA, T_A = 25°C, bold values indicate
–40°C ≤ T_J ≤ +125°C, unless noted.
Parameter
Condition
Min. Typ. Max.
Power Supply Input
Input Voltage Range⁽⁶⁾
6
120
Quiescent Supply Current
Output Voltage
I_OUT = 0
6
11
Adjustable
1.27
5.5
Output Voltage
Fixed 3.3V
3.2
3.3
3.4
3.13 3.3
3.47
Fixed 5.0V
4.85 5.0
5.15
4.75 5.0
5.25
Output Voltage Accuracy
Variation from nominal V_OUT
−3
+3
−5
+5
Load Regulation
Line Regulation⁽⁷⁾
I_OUT = 100µA to 25mA
V_IN = 10V to 120V
−0.5 0.2
+0.5
−0.5 0.04 +0.5
Feedback Input (Adjustable)
FB Voltage
1.232 1.270 1.308
1.206 1.270 1.333
FB Current
V_FB = 1.27V
3.2
Current Limit
Current Limit
Ripple Rejection
V_OUT = 0V
30
65
130
Units
V
µA
V
%
%
%
%/V
V
nA
mA
Power Supply Rejection Ratio
f = 20kHz to 2MHz
>90
dB
Notes:
1. Exceeding an 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 at any T_A (ambient temperature) is P_D(max) = (T_J(max) – T_A) / θ_JA. Exceeding the maximum allowable power
dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown.
4. Devices are ESD sensitive; use proper handling precautions.
5. Specifications are for packaged products only.
6. Assure that V_IN ≥ (V_OUT + 3V) and V_IN ≥ 6V.
7. Line regulation is a percentage of V_OUT.
June 2011
4
M9999-062411-A