LM3488MM/NOPB National Semiconductor, LM3488MM/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM3488MM/NOPB
• Description: IC CTRLR SWITCH REG N-CH 8-MSOP
• Manufacturer: National Semiconductor
• Type: Step-Up (Boost), Flyback, Sepicr

Specifications of LM3488MM/NOPB

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 1.26V
• Current - Output: 1A
• Frequency - Switching: 100kHz ~ 1MHz
• Voltage - Input: 2.97 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM3488MM; LM3488MM; LM3488MMTR

If V
given input voltage and output voltage, the current in the in-
ductor changes at a constant rate.
L
(t) is constant, di
L
(t)/dt must be constant. Hence, for a
FIGURE 11. A. Inductor Current B. Diode Current
15
The important quantities in determining a proper inductance
value are I
tor current ripple). If Δi
will drop to zero for a portion of the cycle and the converter
L
(the average inductor current) and Δi
L
is larger than I
10138824
L
, the inductor current
L
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(the induc-