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TC7662B Series

Charge Pump DC-DC Voltage Converter

Manufacturer: Microchip Technology

Catalog

Charge Pump DC-DC Voltage Converter

Key Features

+ 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

Description

AI
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.