R1240K Overview
R1240x Series 1.2 A, 30 V Step-Down DC/DC Converter NO.EA-190-230522 OUTLINE The R1240x is a CMOS-based Step-down DC/DC converter with internal Nch high side Tr. (0.35 Ω), which can provide the maximum 1.2 A output current. The ICs consists of an Oscillator, a PWM control circuit, a Reference Voltage unit, an Error amplifier, phase pensation circuits, a slope circuit, a soft-start circuit, protection circuits,...
R1240K Key Features
- Operating Voltage ----------------------------------------- 4.5 V to 30 V
- Internal Nch MOSFET Driver ----------------------------- Typ. RON = 0.35 Ω
- Adjustable Output Voltage with External Resistor --- 0.8 V to 15 V
- Feedback Voltage-------------------------------------------- 0.8 V ±1.5%
- Peak Current Limit Function------------------------------- Typ. 2.0 A
- UVLO Function
- Operating Frequency --------------------------------------- 1.25 MHz (Ver. B: 310 kHz, Fold-back Condition)
- Short Protection for Output -------------------------------- Ver. A: Latch with 2 ms delay or Ver. B: Fold-back
- Ceramic Capacitor patible
- Stand-by Function ------------------------------------------- Typ. 0 µA
