MIC22705_11 Datasheet, PDF (5/29 Pages) Micrel Semiconductor – 1MHz, 7A Integrated Switch High-Efficiency Synchronous Buck Regulator

Micrel, Inc.
MIC22705
Electrical Characteristics⁽⁴⁾ (Continued)
V_IN = PV_IN = V_EN/DLY = 3.3V, V_OUT = 1.8V, T_A = 25°C, unless noted. Bold values indicate –40°C< T_J < +125°C.
Parameter
Condition
Min. Typ.
Internal FETs
Top MOSFET R_DS(ON)
V_FB = 0.5V, I_SW = 1A
30
Bottom MOSFET R_DS(ON)
V_FB = 0.9V, I_SW = -1A
25
SW Leakage Current
PV_IN = 5.5V, V_SW = 5.5V, V_EN = 0V
V_IN Leakage Current
Power Good (PG)
PV_IN = 5.5V, V_SW = 0V, V_EN = 0V
PG Threshold
Threshold % of V_FB from V_REF
−7.5 −10
Hysteresis
2.0
PG Output Low Voltage
I_PG = 5mA (sinking), V_EN/DLY = 0V
144
PG Leakage Current
V_PG = 5.5V; V_FB = 0.9V
1.0
Thermal Protection
Over-temperature Shutdown
T_J Rising
160
Over-temperature Shutdown
Hysteresis
20
Max.
60
25
−12.5
2.0
Units
mΩ
mΩ
µA
%
%
mV
μA
°C
°C
March 2011
5
M9999-033111-A