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TC1221

EOL

Status: End of Life

Features:

  • Charge Pumps in 6-Pin SOT-23A Package 96% Voltage Conversion Efficiency Voltage Inversion and/or Doubling Operates from +1.8V to +5.5V Up to 25 mA Output Current Only Two External Capacitors Required Power-Saving Shutdown Mode Fully Compatible with 1.8V Logic Systems
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Device Overview

Summary

The TC1221/1222 are CMOS "charge-pump" voltage converters in ultra-small 6-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.8V to +5.5V. Conversion efficiency is typically 96%. Switching frequency is 125 kHz for the TC1221, 750KHz for the TC1222. When the shutdown pin is held at a logic low, the device goes into a very low power mode of operation, consuming less than 1mA of supply current. For standard voltage inverter applications, the device requires only two external capacitors. With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Typical supply currents are 290µA (TC1221) and 1800µA (TC1222). All devices are available in 6-Pin SOT-23A surface mount packages.

Additional Features
Charge Pumps in 6-Pin SOT-23A Package
96% Voltage Conversion Efficiency
Voltage Inversion and/or Doubling
Operates from +1.8V to +5.5V
Up to 25 mA Output Current
Only Two External Capacitors Required
Power-Saving Shutdown Mode
Fully Compatible with 1.8V Logic Systems
Parametrics
Name
Value
Typical Active Output Current (mA)
25
Output Voltage (V)
Vout = -Vin or Vout = 2Vin
Typical Quiescent Current (µA)
290
Input Voltage Range (V)
1.8 to 5.5
Operating Temp. Range (°C)
-45 to 85
Device Description
Inverting or Doubling

Documents

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Data Sheet

07/22/2014
174KB

Product Line Card

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
Voltage Supervisor SOT23-5/6 Evaluation Board
Voltage Supervisor SOT23-5/6 Evaluation Board ( VSUPEV2 )

This Blank PCB allows the system designer to quickly evaluate the operation of Microchip Technology’s Voltage Supervisors and Voltage Detectors in the SOT-23-5 (5-pin) and SOT-23-6 (6-pin) packages. This PCB supports many Microchip device families, including the Nonvolitile Digital Potentiometer and PIC10F2xx devices.

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