LM2577T-ADJ/NOPB National Semiconductor, LM2577T-ADJ/NOPB Datasheet - Page 30

• Manufacturer Part Number: LM2577T-ADJ/NOPB
• Description: IC REG SIMPLE SWITCHER TO-220-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Up (Boost), Flyback, Forward Converterr

Specifications of LM2577T-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 11.4 ~ 12.6 V
• Current - Output: 3A
• Frequency - Switching: 52kHz
• Voltage - Input: 3.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Straight Leads)
• Current, Input Bias: 100 nA
• Current, Output: 3 A
• Current, Supply: 25 mA
• Frequency, Oscillator: 52 kHz
• Package Type: TO-220
• Regulation, Line: 20 mV
• Regulation, Load: 20 mV
• Regulator Type: Boost (Step-Up)
• Resistance, Thermal, Junction To Case: 2 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Transconductance: 3700
• Voltage, Gain: 800 V/V
• Voltage, Input: 3.5 to 40 V
• Dc To Dc Converter Type: Step Up
• Pin Count: 5 +Tab
• Input Voltage: 40V
• Output Voltage: 11.6 to 12.4V
• Switching Freq: 48 TO 56KHz
• Output Current: 3A
• Efficiency: 80%
• Output Type: Adjustable
• Switching Regulator: Yes
• Load Regulation: 50mV
• Line Regulation: 50mV
• Mounting: Through Hole
• Input Voltage (min): 3.5V
• Operating Temperature Classification: Automotive
• For Use With: 551011367-061 - BOARD WEBENCH LM2577,LM2585/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM2577T-ADJ; *LM2577T-ADJ/NOPB; LM2577T-ADJ

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.
For the most current product information visit us at www.national.com.
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 systems
BANNED SUBSTANCE COMPLIANCE
National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products
Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain
no ‘‘Banned Substances’’ as defined in CSP-9-111S2.
Physical Dimensions
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.
National Semiconductor
Americas Customer
Support Center
Email: [e-mail]
Tel: [phone]
Order Number LM2577S-12, LM2577S-15 or LM2577S-ADJ
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English
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inches (millimeters) unless otherwise noted (Continued)
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NS Package Number TS5B
5-Lead TO-263 (S)
2. A critical component is any component of a life 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.
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