R1204K312B-TR Datasheet | RICOH

FEATURES - Input Voltage Range 2.3 V to 5.5 V - Supply Current Typ. 800 µA - Standby Current Max. 5 µA - Feedback Voltage 0.2 V ±10 m V (R1204xxxx A/D) 0.4 V ±10 m V (R1204xxxx G/H) - V ±15 m V (R1204xxxx B/C/E/F) - Lx Current Limit Function Min. 700 m A - Over Voltage Protection 23 V, 33 V, 42 V (±1.5 V) - Oscillator Frequency Typ. 1.0 MHz (R1204xxxx A/B/C/G) Typ. 750 k Hz (R1204xxxx D/E/F/H) - Maximum Duty Cycle Min. 91% (R1204xxxx A/B/C/G) Min. 92% (R1204xxxx D/E/F/H) - FET ON Resistance Typ. 0.8 Ω - UVLO Function - Thermal Protection Function - LED Dimming Control for R1204xxxx A/D by external PWM signal (200 Hz to 300 k Hz frequency) - Packages DFN(PLP)1820-6, TSOT-23-6 - Remended Bypass Capacitor 1.0 µF APPLICATIONS - Constant voltage power source for hand-held equipment - OLED power supply for hand-held equipment - White LED driver for hand-held equipment R1204x No. EA-284-180511 SELE...