LM2733XEVAL National Semiconductor, LM2733XEVAL Datasheet - Page 3

• Manufacturer Part Number: LM2733XEVAL
• Description: BOARD EVALUATION LM2733X
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM2733XEVAL

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Current - Output: 1A
• Voltage - Input: 2.7 ~ 14V
• Regulator Topology: Boost
• Frequency - Switching: 1.6MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2733
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Voltage - Output: -
• Power - Output: -

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
3.3V to 5V Demo Boards
3.3V to 5V boards were fabricated using the LM2731X and
LM2731Y. These boards had the following changes from the
standard BOM listed previously in this document.
1. C2, output capacitor: a 22 µF cap is installed on the
www.national.com
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
board. The increased capacitance is necessary for loop
stability.
National Semiconductor
Americas Customer
Support Center
Email: [e-mail]
Tel: [phone]
National Semiconductor
Europe Customer Support Center
Deutsch Tel: [phone]
English
Français Tel: [phone]
Email: [e-mail]
Fax: [phone]
Tel: [phone]
2. A critical component is any component of a life
2. R2, is 40.2k to set the output to 5V.
3. C3, is 470 pF (feedforward compensation).
4. L1, is 6.8 µH. This is the maximum inductance which the
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
LM2731 will provide stable operation at full load current
in the 3.3 to 5V boost configuration.
National Semiconductor
Asia Pacific Customer
Support Center
Fax: [phone]
Email: [e-mail]
Tel: [phone]
National Semiconductor
Japan Customer Support Center
Fax: [phone]
Email: [e-mail]
Tel: [phone]