MIC2202 Datasheet, PDF (3/18 Pages) Micrel Semiconductor – HIGH EFFICIENCY 2MHZ SYNCHRONOUS BUCK CONVERTER 1UP STABLE PWM REGULATOR

MIC2202
Absolute Maximum Ratings^{(Note 1)}
Supply Voltage (V_IN) ....................................................... 6V
Output Switch Voltage (V_SW) .......................................... 6V
Logic Input Voltage (V_EN, V_{SYNC_IN}) ............... V_IN to –0.3V
Power Dissipation .................................................... Note 3
Storage Temperature (T_S) ....................... –65°C to +150°C
ESD Rating (Note 4) ..................................................... 2kV
Micrel
Operating Ratings^{(Note 2)}
Supply Voltage (V_IN) ................................... +2.3V to +5.5V
Junction Temperature (T_J) ................ –40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
MSOP-10L (θ_JA) ................................................ 115°C/W
3mm×3mm MLF™-10L (θ_JA) ............................... 60°C/W
Electrical Characteristics^{(Note 5)}
T_A = 25°C with V_IN = 3.5V unless otherwise noted, bold values indicate –40°C < T_J < +125°C
Parameter
Condition
Supply Voltage Range
Quiescent Current
EN = V_IN; V_FB = 0.55V (not switching)
EN = 0V
MIC2202 [Adjustable] Feedback
Voltage
Output Voltage Line Regulation
Output Voltage Load Regulation
Bias Regulator Output Voltage
V_OUT < 2V; V_IN = 2.3V to 5.5V, I_LOAD= 100mA
0mA < I_LOAD < 500mA
Maximum Duty Cycle
Current Limit
Switch ON-Resistance
Enable Input Current
V_FB = 0.7V
V_FB = 0.7V
V_IN = 3.5V, I_SW = 300mA V_FB = 0.35V
V_IN = 3.5V, I_SW = –300mA V_FB = 0.55V
Sync Frequency Range
SYNC_IN Threshold
Sync Minimum Pulse Width
SYNC_IN Input Current
Oscillator Frequency
Enable Threshold
Enable Hysteresis
Over-temperature Shutdown
Over-temperature Shutdown
Hysteresis
Min
2.3
0.4875
Typ
350
0.01
0.500
Max
5.5
450
1
0.5125
Units
V
µA
µA
V
0.05 0.5
%
0.1
0.5
%
2.2 2.32 2.6
V
100
%
1
1.8
2.5
A
0.650 0.9
Ω
0.550 0.75
Ω
0.01
1
µA
1.6
2.5 MHz
0.7
1
1.7
V
10
ns
1
µA
1.8
2
2.2 MHz
0.5
0.9
1.3
V
20
mV
160
°C
20
°C
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Exceeding the ABSOLUTE MAXIMUM RATINGS may damage device.
The device is not guaranteed to function outside its operating rating.
Absolute maximum power dissipation is limited by maximum junction temperature where P_D(MAX) = (T_J(MAX)–T_A) ÷ θ_JA.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Specification for packaged product only.
May 2004
3
M9999-052104