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MC1121 Datasheet - ON Semiconductor

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Datasheet Details

Part number:

MC1121

Manufacturer:

ON Semiconductor ↗

File Size:

102.55 KB

Description:

100ma charge pump voltage converter with shutdown.

MC1121, 100mA Charge Pump Voltage Converter with Shutdown

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

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 20

MC1121 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

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