LM26420XMH NSC [National Semiconductor], LM26420XMH Datasheet - Page 5

• Manufacturer Part Number: LM26420XMH
• Description: Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator
• Manufacturer: NSC [National Semiconductor]

Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Range indicates conditions for which the device is
intended to be functional, but does not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: Thermal shutdown will occur if the junction temperature exceeds the maximum junction temperature of the device.
Note 3: The human body model is a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin. Test method is per JESD-22-A114.
Note 4: Applies to a 4-layer standard JEDEC thermal test board or 4LJEDEC is 4"x3" in size. The board has 2 imbedded copper layers which cover roughly the
same size as the board. The copper thickness for the four layers, starting from the top one, is 2 oz./1oz./1oz./2 oz. For LLP, thermal vias are placed between the
die attach pad in the 1st. copper layer and 2nd. copper layer.
Symbol
T
θ
θ
JC
SD
JA
Junction to Ambient
0 LFPM Air Flow
Junction to Case
Thermal Shutdown Temperature
Parameter
(Note
(Note
4)
4)
LLP-16
eTSSOP-20
LLP-16
eTSSOP-20
5
Conditions
Min
Typ
165
6.8
3.9
40
35
Max
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Units
°C/W
°C