LM2575T-5.0
The LM2575 series of regulators are monolithic ? 3.3V, 5V, 12V, 15V, and Adjustable Output
integrated circuits that provide all the active functions Versions for a step-down (buck) switching regulator, capable of
? Adjustable Version Output Voltage Range, driving a 1A load with excellent line and load
? 1.23V to 37V (57V for HV Version) ?4% regulation. These devices are available in fixed output
Max Over voltages of 3.3V, 5V, 12V, 15V, and an adjustable
output version.
LM2577T-ADJ P+
Requires Few External Components
circuits that provide all of the power and control
? NPN Output Switches 3.0A, can Stand off 65V functions for step-up (boost), flyback, and forward
? Wide Input Voltage Range: 3.5V to 40V converter switching regulators. The device is
available in three different output voltage versions: ? Current-mode Operation for Improved
Transient Response, Line Regulation, 12V, 15V, and adjustable. and
Current Limit Requiring a minimum number of external
? 52 kHz Internal Oscillator components, these regulators are cost effective, and
simple to use. Listed in this data sheet are a family of ? Soft-start Function Reduces In-rush Current standard inductors and flyback transformers designed During Start-up to work with these switching regulators.
? Output Switch Protected by Current Limit,
Included on the chip is a 3.0A NPN switch and its Under-voltage Lockout, and Thermal associated protection circuitry, consisting of current Shutdown
LM2586S-ADJ
The LM2586 series of regulators are monolithic
integrated circuits specifically designed for flyback,
step-up (boost), and forward converter applications.
The device is available in 4 different output voltage
versions: 3.3 V, 5 V, 12 V, and adjustable.
Requiring a minimum number of external
components, these regulators are cost effective, and
simple to use. Included in the datasheet are typical
circuits of boost and flyback regulators. Also listed
are selector guides for diodes and capacitors and a
family of standard inductors and flyback transformers
designed to work with these switching regulator
LM2588SADJ
The LM2588 series of regulators are monolithic
integrated circuits specifically designed for flyback,
step-up (boost), and forward converter applications.
The device is available in 4 different output voltage
versions: 3.3 V, 5 V, 12 V, and adjustable.
Requiring a minimum number of external
components, these regulators are cost effective, and
simple to use. Included in this data sheet are typical
circuits of boost and flyback regulators. Also listed
are selector guides for diodes and capacitors and a
family of standard inductors and flyback transformers
designed to work with these switching regulators.
LM258D
These circuits consist of two independent, highgain, internally frequency-compensated op amps,
specifically designed to operate from a single
power supply over a wide range of voltages. The
low-power supply drain is independent of the
magnitude of the power supply voltage.
Application areas include transducer amplifiers,
DC gain blocks and all the conventional op amp
circuits, which can now be more easily
implemented in single power supply systems. For
example, these circuits can be directly supplied
with the standard 5 V, which is used in logic
systems and will easily provide the required
interface electronics with no additional power
supply.
LM2671M-ADJ
The LM2671 series operates at a switching frequency
of 260 kHz, thus allowing smaller sized filter
components than what is required with lower
frequency switching regulators. Because of its very
high efficiency (> 90%), the copper traces on the
printed-circuit board are the only heat sinking
required.
A family of standard inductors for use with the
LM2671 are available from several different
manufacturers. This feature greatly simplifies the
design of switch-mode power supplies using these
advanced ICs. Also included in the data sheet are
selector guides for diodes and capacitors designed to
work in switch-mode power supplies.
LM2675M-3.3/NOPB
The LM2675 series operates at a switching frequency
of 260 kHz, thus allowing smaller-sized filter
components than what would be needed with lower
frequency switching regulators. Because of its very
high efficiency (>90%), the copper traces on the
printed-circuit board are the only heat sinking needed.
? Simple High Efficiency (>90%) Step-Down (Buck)
Regulator
? Efficient Preregulator for Linear Regulators
? Positive-to-Negative Converter
LM2676S-3.3
The LM2676 series of regulators are monolithic
integrated circuits which provide all of the active
functions for a step-down (buck) switching regulator
capable of driving up to 3-A loads with excellent line
and load regulation characteristics. High efficiency
(>90%) is obtained through the use of a low ONresistance DMOS power switch. The series consists
of fixed output voltages of 3.3-V, 5-V, and 12-V and
an adjustable output version.
The SIMPLE SWITCHER?
concept provides for a
complete design using a minimum number of external
components. A high fixed frequency oscillator
(260 kHz) allows the use of physically smaller sized
components. A family of standard inductors for use
with the LM2676 are available from several
manufacturers to greatly simplify the design process.
LM2901N
The LM2901EP consists of four independent
2? Wide Supply Voltage Range
precision voltage comparators with an offset voltage
? LM2901: 2 to 36 VDCor ?1 to ?18 VDC specification as low as 2 mV max for all four
? Very Low Supply Current Drain (0.8 mA) ? comparators. These were designed specifically to
Independent of Supply Voltage operate from a single power supply over a wide range
of voltages. Operation from split power supplies is ? Low Input Biasing Current: 25 nA
also possible and the low power supply current drain
? Low Input Offset Current: ?5 nA is independent of the magnitude of the power supply
? Offset Voltage: ?3 mV voltage. This comparator also has a unique
? Input Common-Mode Voltage Range Includes characteristic in that the input common-mode voltage
GND range includes ground, even though operated from a
single power supply voltage.
