R1210N502C
R1210N502C is PWM Step-up DC/DC Controller manufactured by RICOH.
- Part of the R1210N362C comparator family.
- Part of the R1210N362C comparator family.
R1210Nxx2x SERIES
PWM Step-up DC/DC Controller
NO.EA-064-111123
OUTLINE
The R1210Nxx2C/xx2D Series are CMOS-based PWM step-up DC/DC Converter controllers, with high accuracy, low supply current.
Each of the R1210Nxx2x Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error amplifier, phase pensation circuit, resistors for voltage detection, a chip enable circuit, a controller against drastic load transient and an output voltage detector. A low ripple, high efficiency step-up DC/DC converter can be posed of this IC with only four external ponents, or an inductor, a diode, a transistor and a capacitor.
The R1210Nxx2x Series can detect drastic change of output voltage with a circuit controller, the load transient response is improved.
Each of the R1210Nxx2x Series has a driver pin, or ‘EXT’ pin for external transistor. By connecting a power transistor with low ON-resistance to EXT pin, a large current flows through an inductor, thus, large...
