In voltage doubler applications, LTC7820 can start-up without capacitor ... LTC7820— Fixed Ratio High Power Inductorless (Charge Pump) DC/DC Controller ...

Inductorless SRs, also called “charge pump converters†(figure 2), have been known to be less efficient than their inductor-based counterparts when used with a variable input voltage. However, this ...

The bipolar NE555 timer IC is widely used in inductorless dc-dc converters ... The NE555-based (a) and LM386-based (b) positive-voltage doublers use roughly the same number and type of passive ...

Wow the engineering world with your unique design: Design Ideas Submission Guide The simplest of these is the diode pump voltage doubler. It consists of just two diodes and two capacitors but has the ...

This is because the forward voltage drop of a typical white LED is 3.6 to 4 V. Shown here is a constant-current backlight supply using the LTC3200 inductorless regulator to drive four white LEDs.

Linear Technology has announced the LTC3218, an inductorless high current white LED driver that delivers up to 400mA of LED current. Its multi-mode architecture automatically switches between 1x or 2x ...

STAR4003 is designed in a TSMC 40nm process with 3.3V tolerant devices. It outputs an open loop doubled voltage from the input supply. The IP integrates two NMOS power switches and two PMOS power ...

This also ensures the current does not depend on the LED forward voltage. An extremely low output equivalent resistance and reference voltage allows for the highest white LED flash brightness and an ...