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R1203L - STEP-UP DC/DC CONVERTER

General Description

R1203x NO.EA-271-180703 DFN1616-6B Top View Bottom View 654 456 ∗ SOT-23-6 6 5 4 (mark side) 123 321 1 2 3 DFN1616-6B Pin No 1 2 3 4 5 6 Symbol CE VFB Lx GND VIN VOUT Pin Description Chip Enable Pin ("H" Active) Feedback Pin Switching Pin (Open Dra

Key Features

  • Supply Current Typ. 500µA.
  • Standby Current Max. 5µA.
  • Input Voltage Range 1.8V to 5.5V.
  • Feedback Voltage 0.2V.
  • Feedback Voltage Accuracy ±1.0% (±10mV).
  • Temperature-Drift Coefficient of Feedback Voltage ±150ppm/°C.
  • Oscillator Frequency Typ. 1.2MHz.
  • Maximum Duty Cycle Typ. 91%.
  • Switch ON Resistance Typ. 1.35Ω.
  • UVLO Detector Threshold Typ. 1.6V.
  • Lx Current Limit Protection Typ. 700mA.

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Datasheet Details

Part number R1203L
Manufacturer Nisshinbo
File Size 1.17 MB
Description STEP-UP DC/DC CONVERTER
Datasheet download datasheet R1203L Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
R1203L(DFN1616-6B) is the NRND product of as April 2023. R1203x SERIES STEP-UP DC/DC CONVERTER FOR WHITE LED BACK LIGHT NO.EA-271-230418 OUTLINE The R1203x Series are PWM control type step-up DC/DC converter ICs with low supply current. The R1203x is fully dedicated to drive White LEDs with constant current. Each of these ICs consists of an NMOS FET, an oscillator, a PWM comparator, a voltage reference unit, an error amplifier, a current limit circuit, an under voltage lockout circuit (UVLO), and an over-voltage protection circuit (OVP). The R1203x can drive white LEDs in constant current with high efficiency by using an inductor, a diode, a resistor and capacitors as external components.