MIC24053 Datasheet, PDF (3/32 Pages) Micrel Semiconductor – 12V, 9A High-Efficiency Buck Regulator

MIC24053
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
PV_IN to PGND ............................................................................................................................................ –0.3V to +29V
V_IN to PGND ............................................................................................................................................... –0.3V to PV_IN
PV_DD, V_DD to PGND .................................................................................................................................... –0.3V to +6V
V_SW, V_CS to PGND......................................................................................................................... –0.3V to (PV_IN +0.3V)
V_BST to V_SW ................................................................................................................................................... –0.3V to 6V
V_BST to PGND.............................................................................................................................................. –0.3V to 35V
V_FB, V_PG to PGND ......................................................................................................................... –0.3V to (V_DD + 0.3V)
V_EN to PGND ................................................................................................................................... –0.3V to (V_IN +0.3V)
PGND to SGND ........................................................................................................................................ –0.3V to +0.3V
ESD Rating (Note 1). ................................................................................................................................. ESD Sensitive
Operating Ratings ††
Supply Voltage (PV_IN, V_IN)............................................................................................................................. 4.5V to 19V
PV_DD, V_DD Supply Voltage (PV_DD, V_DD)....................................................................................................... 4.5V to 5.5V
Enable Input (V_EN) ............................................................................................................................................. 0V to V_IN
Maximum Power Dissipation.................................................................................................................................. Note 2
† Notice: Exceeding the absolute maximum rating can damage the device.
†† Notice: The device is not guaranteed to function outside its operating range.
Note 1: Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5 kΩ in series
with 100 pF.
2: P_D(MAX) = (T_J(MAX) – T_A)/Θ_JA, where Θ_JA depends on the printed circuit layout. A 5 in², 4-layer, 0.62”, FR-4
PCB with 2 oz finish copper weight per layer is used for the Θ_JA.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, PV_IN = V_IN = V_EN = 12V, V_BST – V_SW = 5V; T_A = 25°C. Bold
values indicate –40°C ≤ T_J ≤ +125°C
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Power Supply Input
Input Voltage Range (V_IN, PV_IN)
Quiescent Supply Current
Shutdown Supply Current
V_DD Supply Voltage
V_DD Output Voltage
V_DD UVLO Threshold
V_DD UVLO Hysteresis
Dropout Voltage (V_IN – V_DD)
DC - DC Controller
4.5
—
19
—
730
1500
—
5
10
V—
μA V_FB = 1.5V (non-switching)
μA V_EN = 0V
4.8
5
5.4
3.7
4.2
4.5
—
400
—
—
380
600
V V_IN = 7V to 19V, I_DD = 40 mA
V V_DD Rising
mV —
mV I_DD = 25 mA
Output-Voltage Adjust Range
(V_OUT)
0.8
—
5.5
V—
Note 1: Specification for packaged product only.
2: Measured in test mode.
3: The maximum duty-cycle is limited by the fixed mandatory off-time (t_OFF) of typically 300 ns.
 2015 Microchip Technology Inc.
DS20005668A-page 3