Datasheet4U Logo Datasheet4U.com

MC1121 - 100mA Charge Pump Voltage Converter with Shutdown

General Description

Frequency control for internal oscillator, FC = open, FOSC = 10kHz typ; FC = VDD, FOSC = 200kHz typ, FC has no effect when OSC pin is driven externally Charge pump capacitor, positive terminal Power supply ground input CAP+ GND CAP Charge pump capacitor, negative ter

Key Features

  • Converts a 2.4V to 5.5V Input Voltage to a Corresponding Negative Output Voltage (Inverter Mode).
  • Uses Only 2 Capacitors; No Inductors Required!.
  • High Output Current: 100mA.
  • Selectable Oscillator Frequency: 10kHz to 200kHz.
  • Power.
  • Saving Shutdown Input.
  • Optional High.
  • Frequency Operation Allows Use of Small Capacitors.
  • Low Operating Current (FC = GND): 50µA.
  • Tested Operating Temperature Range:.
  • 40°C to.

📥 Download Datasheet

Datasheet Details

Part number MC1121
Manufacturer onsemi
File Size 102.55 KB
Description 100mA Charge Pump Voltage Converter with Shutdown
Datasheet download datasheet MC1121 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MC112 Catalytic Gas Sensor Winsen
MC112C Catalytic Gas Sensor Winsen
MC112D Catalytic Gas Sensor Winsen
MC1131A Advanced Brushless Motor Control Chipset PMD
MC1141A (MC1141A / MC1241A) Advanced Microstepping Motion Control Chipset Performance Motion Devices

Other Datasheets by onsemi

Part Number Description
MC100E016 8-BIT SYNCHRONOUS BINARY UP COUNTER
MC100E101 QUAD 4-INPUT OR/NOR GATE
MC100E104 QUINT 2-INPUT AND/NAND GATE
MC100E107 QUINT 2-INPUT XOR/XNOR GATE
MC100E111 1:9 DIFFERENTIAL CLOCK DRIVER

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
MC1121 100mA Charge Pump Voltage Converter with Shutdown The MC1121 is a charge pump converter with 100mA output current capability. It converts a 2.4V to 5.5V input to a corresponding negative output voltage. As with all charge pump converters, the MC1121 uses no inductors saving cost, size, and reducing EMI. An on–board oscillator operates at a typical frequency of 10kHz (at VDD = 5V) when the frequency control input (FC) is connected to ground. The oscillator frequency increases to 200kHz when FC is connected to VDD, allowing the use of smaller capacitors. Operation at sub–10kHz frequencies results in lower quiescent current and is accomplished with the addition of an external capacitor from OSC (pin 7) to ground. The MC1121 can be driven from an external clock connected OSC.