lm8801tmx National Semiconductor Corporation, lm8801tmx Datasheet - Page 4

• Manufacturer Part Number: lm8801tmx
• Description: High Precision 6mhz, 600 Ma Synchronous Step-down Dc-dc Converter For Mobile Applications
• Manufacturer: National Semiconductor Corporation

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation
of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions,
see the Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at T
= 150°C (typ.) and disengages at T
J
J
= 140°C (typ.).
Note 4: The Human Body Model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin. MIL-STD-883–3015.7.
Note 5: In applications where high power dissipation and/or poor package resistance is present, the maximum ambient temperature may have to be derated.
Maximum ambient temperature (T
) is dependent on the maximum operating junction temperature (T
= 125°C), the maximum power dissipation of
A-MAX
J-MAX-OP
the device in the application (P
) and the junction-to-ambient thermal resistance of the part/package (θ
) in the application, as given by the following equation:
D-MAX
JA
− (θ
T
= T
x P
). Due to the pulsed nature of testing the part, the temp in the Electrical Characteristic table is specified as T
= T
.
A-MAX
J-MAX
JA
D-MAX
A
J
Note 6: Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high power dissipation exists, special
care must be given to thermal dissipation issues in board design.
Note 7: Min and Max limits are guaranteed by design, test or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 8: The parameters in the electrical characteristic table are tested under open loop conditions at V
= 3.6V unless otherwise specified. For performance
IN
over the input voltage range and closed loop condition, refer to the datasheet curves.
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