CAT660 Series

Charge Pump Voltage Converter

Catalog

Charge Pump Voltage Converter

Part	Voltage - Input (Max) [Max]	Number of Outputs	Output Type	Frequency - Switching	Output Configuration	Function	Current - Output	Mounting Type	Package / Case	Package / Case [y]	Package / Case [x]	Supplier Device Package	Synchronous Rectifier	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Min/Fixed) [Max]	Voltage - Input (Min) [Min]
ON Semiconductor CAT660EVA-GT3	5.5 V	1	1.81 mOhm	10 kHz 80 kHz	Positive or Negative	Ratiometric	100 mA	Surface Mount	8-SOIC	3.9 mm	0.154 in	8-SOIC		85 °C	-40 °C	-Vin	2Vin	1.5 V

Catalog

Charge Pump Voltage Converter

Key Features

• Replaces MAX660 and LTC®660

• Converts V+ to V- or V+ to 2V+

• Low output resistance, 4Ω typical

• High power efficiency

• Selectable charge pump frequency- 10kHz or 80kHz- Optimize capacitor size

• Low quiescent current

• Pin-compatible, high-current alternative to 7660/1044

• Industrial temperature range

• Available in 8-pin SOIC package- Lead-free, halogen-free package option

Description

The CAT660 is a charge-pump voltage converter. It will invert a 1.5V to 5.5V input to a -1.5V to -5.5V output. Only two external capacitors are needed. With a guaranteed 100mA output current capability, the CAT660 can replace a switching regulator and its inductor. Lower EMI is achieved due to the absence of an inductor.In addition, the CAT660 can double a voltage supplied from a battery or power supply. Inputs from 2.5V to 5.5V will yield a doubled, 5V to 11V output voltage.A Frequency Control pin (BOOST/FC) is provided to select either a high (80kHz) or low (10kHz) internal oscillator frequency, thus allowing quiescent current vs. capacitor size trade-offs to be made. The 80kHz frequency is selected when the FC pin is connected to V+. The operating frequency can also be adjusted with an external capacitor at the OSC pin or by driving OSC with an external clock.8-pin SOIC package is available in the industrial temperature range.The CAT660 replaces the MAX660 and the LTC®660. In addition, the CAT660 is pin compatible with the 7660/1044, offering an easy upgrade for applications with 100mA loads.