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XC9121 - Step-Up DC/DC Controller

Download the XC9121 datasheet PDF. This datasheet also covers the XC9120 variant, as both devices belong to the same step-up dc/dc controller family and are provided as variant models within a single manufacturer datasheet.

General Description

XC9120/XC9121/XC9122 Series are PWM, PWM/PFM auto/external switching controlled step-up DC/DC converter controller ICs.

Since maximum duty ratio is as large as 93%, the series is the best for the applications used as high step-up ratios, such as the LCD panels and OLED.

Key Features

  • put Voltage Range : 0.9V ~ 6.0V Operating Voltage Range : 1.8V ~ 6.0V Output Voltage Range : 1.5V ~ 30V (externally set) Reference voltage 0.9V (±2.0%) Oscillation Frequency : 100kHz (±15%) Output Current : ≥80mA (VIN=3.6V, VOUT=15V).
  • Control : XC9120 (PWM) : XC9121 (PWM/PFM Automatic) : XC9122 (PWM/PFM Externally) High Efficiency : 85% (TYP. ) : (VIN=3.6V, VOUT=15V, IOUT=10mA).
  • Stand-by Function : ISTB=1.0A (MAX. ) Load Capacitors : Low ESR capacitor compatible Maximum Dut.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (XC9120-Torex.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Torex Semiconductor

Part Number Description
XC9120 Step-Up DC/DC Controller
XC9122 Step-Up DC/DC Controller
XC9131 Multi Functional Step-Up DC/DC Converter
XC9133 Step-Up DC/DC Converter-LED Backlight Driver
XC9135 Multi Functional Step-Up DC/DC Converter

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
XC9120/XC9121/XC9122 Series ETR04009-005c Step-Up DC/DC Controller IC, MAXDUTY: 93% ☆Green Operation Compatible ■GENERAL DESCRIPTION XC9120/XC9121/XC9122 Series are PWM, PWM/PFM auto/external switching controlled step-up DC/DC converter controller ICs. Since maximum duty ratio is as large as 93%, the series is the best for the applications used as high step-up ratios, such as the LCD panels and OLED. In this series, even if it is a high step-up ratio, the output voltage stabilized at high efficiency can be obtained. With 0.9V (±2.0%) of reference voltage supply internal, and using external resistors, RFB1 and RFB2, output voltage can be set up freely within a range of 1.5V to 30V.