Microchip TC7662A DIP-8 DC-DC Converter IC 40mA
Microchip TC7662A DIP-8 charge pump DC-DC converter IC with 40mA output, +3V to +18V input and -3V to -18V inverted output. No inductors required.
Microchip TC7662A DIP-8 DC-DC Converter IC 40mA is a CMOS charge pump voltage converter that generates an inverted output from -3V to -18V and can source output currents up to 40mA.
Overview
The Microchip TC7662A CPA is a CMOS charge pump DC-to-DC voltage converter designed for efficient power supply inversion in process instrumentation and control systems. It is a pin-compatible, enhanced-performance upgrade to the industry-standard TC7660, with a wider operational input voltage range of +3V to +18V.
Key Features
- High Output Capability: Sources output currents up to 40mA, higher than its predecessor.
- Integrated Oscillator: On-board oscillator with a nominal frequency of 12kHz.
- Frequency Adjustment: The oscillator frequency can be reduced below 12kHz by connecting an external capacitor between the OSC pin and ground, for applications requiring lower supply current.
- Simplified Design: Requires no external diodes and has no requirement for a low-voltage terminal.
- Low Output Impedance: Typically 40Ω at a 20mA load, supporting good voltage regulation.
Design Benefits
The conversion requires only two external capacitors and eliminates the need for inductors. Removing inductors reduces the number of components and the physical footprint of a design, and avoids electromagnetic interference (EMI) issues commonly associated with inductive switching regulators.
Construction and Package
The device is built using CMOS technology and is supplied in a standard 8-pin DIP (Dual In-line Package) format. This format is suitable for through-hole PCB mounting in prototypes, educational kits, and industrial equipment.
Choose the Microchip TC7662A DIP-8 DC-DC Converter IC 40mA when you need an inverted supply rail from a +3V to +18V input in a compact, through-hole DIP-8 format.
- For process instrumentation and control systems
- For power supply inversion
- For prototypes
- For educational kits
- Output Current: Up to 40mA
- Input Voltage: +3V to +18V
- Output Voltage: -3V to -18V (inverted)
- Oscillator Frequency: 12kHz nominal
- Output Impedance: 40Ω typical at 20mA load
- Technology: CMOS charge pump
- Package: 8-pin DIP (Dual In-line Package)
- Special Feature: No inductors required
- Special Feature: No external diodes required
- Special Feature: Oscillator frequency adjustable below 12kHz with external capacitor
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 6.2 gm
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