DIY8883 – 45V DIGITAL CALIBRATED SYNCHRONOUS STEP-DOWN CONVERTER
Thermal Resistance (4)
QFN16(3mmx3mm)…..……...55...... 13... °C/W
θJA
θJC
ABSOLUTE MAXIMUM RATINGS (1)
VIN ..................................................-0.3V to 48V
VSW..........................................-0.3V to VIN+0.3V
VEN ..................................................-0.3V to 48V
VBST ..................................................... VSW+5.5V
VCC .................................................-0.3V to 5.5V
All Other Pins....................................-0.3V to 5V
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
(2)
Continuous Power Dissipation(TA = +25°C)
QFN-16 (3mmx3mm)............................... 2.27W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
3) The device is not guaranteed to function outside of its operating
conditions.
4) Measured on JESD51-7, 4-layer PCB.
Recommended Operating Conditions (3)
Supply Voltage (VIN).........................3.5V to 45V
Output Voltage (VOUT) ......................0.6V to 12V
Operating Junction Temp.(TJ).. -40°C to +150°C
DIY8883 Rev. 1.0
3/4/2019
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