MIC4930 Datasheet, PDF (3/24 Pages) Micrel Semiconductor – Hyper Speed Control 3A Buck Regulator

MIC4930
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
PV_IN, AV_IN Supply Voltage (V_IN)................................................................................................................... –0.3V to +6V
SW Output Switch Voltage (V_SW).................................................................................................................. –0.3V to V_IN
EN, PG (V_EN, V_PG)........................................................................................................................................ –0.3V to V_IN
FB Feedback Input Voltage (V_FB) ................................................................................................................ –0.3V to V_IN
ESD Protection On All Pins (Note 1) ...............................................................................................................±2 kV HBM
Operating Ratings ††
Supply Voltage (V_IN) ................................................................................................................................. +2.7V to +5.5V
Enable Input Voltage (V_EN) ............................................................................................................................... 0V to V_IN
† Notice: Exceeding the absolute maximum ratings may damage the device.
†† Notice: The device is not guaranteed to function outside its operating ratings.
Note 1: Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5 kΩ in series
with 100 pF.
ELECTRICAL CHARACTERISTICS (Note 1)
Electrical Characteristics: Unless otherwise indicated, V_IN = V_EN = 3.3V; L = 1.0 μH; T_A = 25°C, C_IN = 10 μH,
C_OUT = 10 μH.
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Supply Voltage Range
Undervoltage lockout
threshold
Undervoltage lockout
hysteresis
Quiescent current
Shutdown current
Feedback voltage
Current limit
V_IN
V_UVLO
V_UVLOH
I_Q
I_SD
V_FB
I_LIMIT
2.7
—
5.5
2.41
2.5
2.61
—
400
—
—
—
0.609
3.5
0.8
0.01
0.625
5.75
2
2
0.640
8
Output voltage line
regulation
LINEREG
—
1
—
Note 1: Specification for packaged product only.
V—
V ^(turn-on)
mV ^—
mA
I_OUT = 0 mA, FB >1.2 ×
V_FB(Nominal)
μA ^VEN ^{= 0V}
V—
A
FB = 0.9V × V_FB(Nominal)
V_IN = 2.7V to 3.5V, V_OUTNOM
= 1.8V,
I_LOAD = 20 mA
%/V
V_IN = 4.5V to 5.5V if
V_OUTNOM ≥2.5V,
I_LOAD = 20 mA
 2016 Microchip Technology Inc.
DS20005669A-page 3