R1213K Series


Data Sheet / Flyer
Data Sheet * Flyer

R1213K Series are CMOS-based, PWM control low consumption current step-up DC/DC converter ICs. A low ripple high efficiency step up DC/DC converter can be composed of R1213K with only an inductor, a diode, divider resistors and capacitors and feed back voltage is 0.8V. As protection circuits, a current limit circuit for limit peak current of Lx cycle by cycle, a timer latch protection circuit which stops built-in driver if the load current is beyond the current limit and low VOUT continues for a certain time also built in. Further, thermal shutdown function and under voltage lockout (UVLO) function are built in. Operation halting by the protection circuit is connected to the FLAG output function and control an external P-channel MOSFET and cut off the current path from the power supply to the output. To reset the latch function, restart with power-on (power supply voltage must be equal or less than UVLO detector threshold) or toggling CE pin.

Input Voltage Range 2.3V ~ 5.5V
Standby current Typ. 0.1μA
Lx peak current limit Typ. 3A
Internal driver transistor NMOS = 0.07Ω
Complete shutdown with external switch (option, if necessary)
Thermal shutdown 150°C (Hysteresis 40°C)
Timer latch protection circuit delay time Typ. 32ms
FLAG output function Stop operation by protection circuit, output "H".
UVLO Typ. 2.0V
Maximum duty cycle Typ. 90%
PWM Low Ripple Oscillator Frequency 1.0MHz
Output Voltage Range Adjustable: 3.0V ~ 15.0V, VFB=0.8V
(Recommended range of output voltage)
VFB Voltage Tolerance 0.8V ± 1.0%
Phase compensation control with AMPOUT pin
Soft start time control with SS pin
Package DFN(PLP)2730-12
  • Flash LED
  • Data card
  • DSC
  • LCD source Bias Supplies

Data Sheet Flyer Design Guide
R1213K Series R1213K Series R1213K001x Series
Package Info. Mark Info. Quality Assurance Data
DFN(PLP)2730-12 R1213K Reliability

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