MIC2125 Datasheet, PDF (5/34 Pages) Microchip Technology – 28V Synchronous Buck Controllers Featuring Adaptive ON-Time Control

MIC2125/6
TABLE 1-1: ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: V_IN = 12V, V_OUT = 1.2V, V_BST – V_SW = 5V; T_A = 25°C, unless noted. Bold values indicate
–40°C ≤ T_J ≤ +125°C. (Note 1).
Parameters
Min.
Typ.
Max.
Units
Conditions
Overvoltage Protection
Threshold
——
0.62
—
V—
FET Drivers
DH, DL Output Low Voltage
—
—
0.1
DH, DL Output High Voltage V_PVDD-0.1
—
—
or
V_BST-0.1
DH On-Resistance, High State
—
2.5
—
DH On-Resistance, Low State
—
1.6
—
DL On-Resistance, High State
—
1.9
—
DL On-Resistance, Low State
—
0.55
—
SW, BST Leakage Current
—
—
50
V
I_SINK = 10 mA
I_SOURCE = 10 mA
Ω—
—
—
—
µA —
Power Good (PG)
PG Threshold Voltage
PG Hysteresis
PG Delay Time
PG Low Voltage
85
89
95
%V_OUT Sweep V_FB from low to high
—
6
—
Sweep V_FB from high to low
—
80
—
µs Sweep V_FB from low to high
—
60
200
mV V_FB < 90% x V_NOM, I_PG = 1 mA
Thermal Protection
Overtemperature Shutdown
—
150
—
Overtemperature Shutdown
—
15
—
Hysteresis
°C T_J Rising
°C —
Note 1:
2:
Specification for packaged product only.
The application is fully functional at low V_DD (supply of the control section) if the external MOSFETs have
low voltage V_TH.
 2015 Microchip Technology Inc.
DS20005459B-page 5