LM2731YMFX/NOPB National Semiconductor, LM2731YMFX/NOPB Datasheet - Page 14

• Manufacturer Part Number: LM2731YMFX/NOPB
• Description: IC BOOST ADJ 1.8A SOT23-5
• Manufacturer: National Semiconductor
• Type: Step-Up (Boost)r

Specifications of LM2731YMFX/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 22 V
• Current - Output: 1.8A
• Frequency - Switching: 600kHz
• Voltage - Input: 2.7 ~ 14 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• For Use With: LM2731YEVAL - BOARD EVALUATION LM2731Y
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM2731YMFX

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There will be some switching losses as well, so some derating
needs to be applied when calculating IC power dissipation.
INDUCTOR SUPPLIERS
Recommended suppliers of inductors for this product include,
but are not limited to Sumida, Coilcraft, Panasonic, TDK and
Murata. When selecting an inductor, make certain that the
continuous current rating is high enough to avoid saturation
at peak currents. A suitable core type must be used to mini-
14
mize core (switching) losses, and wire power losses must be
considered when selecting the current rating.
SHUTDOWN PIN OPERATION
The device is turned off by pulling the shutdown pin low. If this
function is not going to be used, the pin should be tied directly
to V
must be used to V
ed). The SHDN pin must not be left unterminated.
IN
. If the SHDN function will be needed, a pull-up resistor
IN
(approximately 50k-100kΩ recommend-