PMIC - Regolatori di tensione - Regolatori a commutazione cc-cc

5A/2A Step-Down, Pwm, Switch-mode DC-DC Regulators

The LM2575T-12 is a SIMPLE SWITCHER? 1A Step-down Voltage Regulator provides all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. This device is available in 12V of fixed output voltage and requiring a minimum number of external components, this regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink and in many cases no heat sink is required. A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

The ICL7660S and ICL7660A Super Voltage Converters are monolithic CMOS voltage conversion ICs that guarantee significant performance advantages over other similar devices. They are direct replacements for the industry standard ICL7660 offering an extended operating supply voltage range up to 12V, with lower supply current. A Frequency Boost pin has been incorporated to enable the user to achieve lower output impedance despite using smaller capacitors. All improvements are highlighted in the ?Electrical Specifications? section on page 3 of the datasheet. Critical parameters are guaranteed over the entire commercial and industrial temperature ranges . The ICL7660S and ICL7660A perform supply voltage conversions from positive to negative for an input range of 1.5V to 12V, resulting in complementary output voltages of -1.5V to -12V. Only two non-critical external capacitors are needed, for the charge pump and charge reservoir functions. The ICL7660S and ICL7660A can be connected to function as a voltage doubler and will generate up to 22.8V with a 12V input. They can also be used as a voltage multipliers or voltage dividers. Each chip contains a series DC power supply regulator, RC oscillator, voltage level translator, and four output power MOS switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for an input supply voltage of 5.0V. This frequency can be lowered by the addition of an external capacitor to the ?OSC? terminal, or the oscillator may be over-driven by an external clock. The ?LV? terminal may be tied to GND to bypass the internal series regulator and improve low voltage (LV) operation. At medium to high voltages (3.5V to 12V), the LV pin is left floating to prevent device latchup. In some applications, an external Schottky diode from VOUT to CAP- is needed to guarantee latchup free operation (see Do?s and Dont?s section on page 8 of the datasheet).

Voltage-Mode SMPS Controller

100kHz 1.25A Switching Regulators Preliminary Information

SIMPLE SWITCHER 5A Flyback Regulator

5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters

Voltage-Mode SMPS Controller

-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters

Pressure Transducer, Series 19 mm, Uncompensated, Pressure Range: 0 psi to 100 psi, Absolute, flush mount, 10 Vdc excitation

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Octal Buffers/Drivers With 3-State Outputs 20-PDIP -40 to 85

+5V/Adjustable Step-Up Current-Mode DC-DC Converters

SIMPLE SWITCHER Step-Up Voltage Regulator

5A and 2.5A High Efficiency Switching Regulators

POWER SWITCHING REGULATORS

28V, Low-Power, High-Vol t age, Boos t or Inver t ing DC-DC Conver t er

Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:AC; No. of Contacts:17; Connector Shell Size:20; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight

-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters

Simple Switcher⑩ 3 Amp Step-Down Voltage Regulator