LMZ23603TZ National Semiconductor, LMZ23603TZ Datasheet - Page 18

• Manufacturer Part Number: LMZ23603TZ
• Description: POWER MODULE, 36V, 3A, 7TO-PMOD
• Manufacturer: National Semiconductor

Specifications of LMZ23603TZ

• Primary Input Voltage: 36V
• No. Of Outputs: 1
• Output Voltage: 6V
• Output Current: 3A
• Voltage Regulator Case Style: TO-PMOD
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Rohs Compliant: Yes

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V
IN
= 12V, V
CCM and DCM Operating Modes
O
= 3.3V, I
O
= 3A/0.3A 2 μsec/div
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The approximate formula for determining the DCM/CCM
boundary is as follows:
I
The inductor internal to the module is 3.3 μH. This value was
chosen as a good balance between low and high input voltage
applications. The main parameter affected by the inductor is
the amplitude of the inductor ripple current (I
calculated with:
I
Where V
812 kHz.
If the output current I
I
DCB
LR P-P
L
, the higher and lower peak of I
≊
V
=V
O
*(V
O
IN
*(V
is the maximum input voltage and f
IN
–V
IN
- V
O
)/(2*3.3 μH*f
O
)/(3.3µH*f
O
is determined by assuming that I
SW
SW(CCM)
*V
LR
IN
) (14)
can be determined.
*V
IN
) (13)
LR
SW
). I
is typically
LR
can be
O
=