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TC7660EV Datasheet

Part Name
Description
MFG CO.
TC7660EV
Microchip
Microchip Technology Microchip
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GENERAL DESCRIPTION
The TC7662B is a pin-compatible upgrade to the Industry standard TC7660 charge pump voltage converter. It converts a +1.5V to +15V input to a corresponding – 1.5 to – 15V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI.
The on-board oscillator operates at a nominal frequency of 10kHz. Frequency is increased to 35kHz when pin 1 is connected to V+, allowing the use of smaller external capacitors. Operation below 10kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground (with pin 1 open).
The TC7662B is available in both 8-pin DIP and 8-pin small outline (SO) packages in commercial and extended temperature ranges.

FEATURES
■ Wide Operating Voltage Range: 1.5V to 15V
■ Boost Pin (Pin 1) for Higher Switching Frequency
■ High Power Efficiency is 96%
■ Easy to Use – Requires Only 2 External Non-Critical Passive Components
■ Improved Direct Replacement for Industry Standard ICL7660 and Other Second Source Devices

APPLICATIONS
■ Simple Conversion of +5V to ±5V Supplies
■ Voltage Multiplication VOUT = ±nVIN
■ Negative Supplies for Data Acquisition Systems and Instrumentation
■ RS232 Power Supplies
■ Supply Splitter, VOUT = ±VS/2

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