RN5RK301B
RN5RK301B is SOT-23-5 VFM STEP-UP DC/DC CONVERTER manufactured by RICOH.
- Part of the RN5 comparator family.
- Part of the RN5 comparator family.
FEATURES
- Small Number of External ponents Only an inductor, a diode and a capacitor (RN5RKxx1A/xx1B)
- Standby Current Typ. 0μA
- Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
- Output Voltage Range 2.0V to 5.5V
- Two Kinds of Duty Ratio 77% (xx1A, xx2A)/ 55% (xx1B)
- High Output Voltage Accuracy ±2.5%
- Small Packages SOT-23-5
- High Efficiency Typ. 85% (RN5RK301B, VIN=2V, IOUT=10m A)
- Low Ripple and Low Noise
- Including a Driver Transistor with Low ON Resistance Only RN5RKxx1A/xx1B
- Low Start-up Voltage Max.0.9V
APPLICATIONS
- Power source for battery-powered equipment.
- Power source for cameras, camcorders, VCRs, and hand-held munication equipment.
- Power source for those appliances which require higher cell voltage than that of batteries.
RN5RK
OUTLINE DIAGRAM
RN5RKxx1x
Lx 5
VLX limiter
Vref
Buffer
Lx SW VFM Control
－ ＋
OSC 100k Hz Error Amp.
Chip Enable
1 CE
2 VOUT 4 GND
EXT 5
RN5RKxx2A
Vref
Buffer
VFM Control
－ ＋
OSC 100k Hz Error Amp.
Chip Enable
1 CE
2 VOUT 4...
