LM2575S-ADJ ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorMaximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indi ..
LM2575SX-12 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorFeaturesn 3.3V, 5V, 12V, 15V, and adjustable output versionsThe LM2575 series of regulators are mon ..
LM2575SX-12 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorLM1575/LM2575/LM2575HV Series SIMPLE SWITCHER 1A Step-Down Voltage RegulatorAugust 2004LM1575/LM257 ..
LM2575SX-12/NOPB ,SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-DDPAK/TO-263 -40 to 125 SNVS106E –MAY 1999–REVISED APRIL 2013Connection Diagrams(XX indicates output voltage option.)Top V ..
LM2575SX-3.3 ,SIMPLE SWITCHER 1A Step-Down Voltage Regulatorfeatures include a guaranteed ±4% tolerance on out-n On-card switching regulatorsput voltage within ..
LM2575SX-5.0 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorThese devices have limited built-in ESD protection. The leads should be shorted together or the dev ..
LM431ACM3X/NOPB ,Adjustable Precision Zener Shunt Regulator 3-SOT-23 0 to 70Electrical Characteristics....... 512.2 Trademarks..... 206.6 Typical Characteristics. 712.3 Electr ..
LM431ACMD ,Adjustable precision shunt regulators
LM431ACMX ,Adjustable/2.5V, 2% Tolerance Shunt RegulatorLM431 Adjustable Precision Zener Shunt RegulatorMarch 2002LM431Adjustable Precision Zener Shunt Reg ..
LM431ACMX/NOPB ,Adjustable Precision Zener Shunt Regulator 8-SOIC 0 to 70Maximum Ratings.. 411.1 Layout Guidelines.... 196.2 ESD Ratings........ 411.2 Layout Example....... ..
LM431ACN ,Programmable Shunt Regulatorapplications.• Fast Turn-on ResponseTO-9211. Ref 2. Anode 3. Cathode8-DIP 8-SOP 111.Cathode 2.3.6.7 ..
LM431ACZ ,Adjustable/2.5V, 2% Tolerance Shunt RegulatorLM431 Adjustable Precision Zener Shunt RegulatorMarch 2002LM431Adjustable Precision Zener Shunt Reg ..
LM2575S-12/NOPB-LM2575S-5.0/Nopb-LM2575S-ADJ-LM2575SX-12/NOPB-LM2575SX-5.0-LM2575SX-5.0 NOPB-LM2575SX-5.0/NOPB-LM2575SX-ADJ/NOPB-LM2575T-12-LB03-LM2575T-15/NOPB-LM2575T-5.0-LM2575T-5.0/NOPB-LM2575T-ADJ LB03-LM2575T-ADJLB03-LM2575T-ADJ-LB03-LM2575T-ADJLF03
SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM1575, LM2575-N, LM2575HV
www.ti.com SNVS106E–MAY 1999–REVISED APRIL 2013
LM1575/LM2575/LM2575HV SIMPLE SWITCHER® 1A Step-Down Voltage Regulator
Checkfor Samples: LM1575, LM2575-N, LM2575HV
1FEATURES DESCRIPTIONThe LM2575 series of regulators are monolithic
23• 3.3V, 5V, 12V, 15V, and Adjustable Output integrated circuits that provideall the active functions
Versions fora step-down (buck) switching regulator, capableof
• Adjustable Version Output Voltage Range, drivinga 1A load with excellent line and load
1.23Vto 37V (57V for HV Version) ±4% regulation. These devices are availablein fixed output
voltagesof 3.3V, 5V, 12V, 15V, and an adjustable
Max Overoutput version.
– Line and Load ConditionsRequiring a minimum number of external
• Specified 1A Output Current components, these regulators are simpleto use and
• Wide Input Voltage Range, 40V upto 60V for include internal frequency compensation anda fixed-
HV Version frequency oscillator.
Requires Only4 External Components The LM2575 series offers a high-efficiency
• 52 kHz Fixed Frequency Internal Oscillator replacement for popular three-terminal linear
TTL Shutdown Capability, Low Power Standby regulators.It substantially reduces the sizeof the
Mode heat sink, and in many cases no heat sinkis
required.
• High Efficiency standard seriesof inductors optimized for use with
• Uses Readily Available Standard Inductorsthe LM2575 are available from several different
• Thermal Shutdown and Current Limit manufacturers. This feature greatly simplifies the
Protection designof switch-mode power supplies.
• P+ Product Enhancement Tested Other features includea specified ±4% tolerance on
output voltage within specified input voltages and
APPLICATIONS output load conditions, and ±10% on the oscillator
Simple High-Efficiency Step-Down (Buck) frequency. External shutdownis included, featuring
Regulator 50 μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
• Efficient Pre-Regulator for Linear Regulators thermal shutdown for full protection under fault
• On-Card Switching Regulators conditions.
Positiveto Negative Converter (Buck-Boost) package.
