TC1223 - 50mA CMOS LDO with Shutdown

TC1223 - 50mA CMOS LDO with Shutdown

 

MICROCHIP

 

Summary

 TC1223 및 TC1224는 LP2980과 같은 구형 바이폴라 저전압 강하 레귤레이터를 위한 고정밀(일반적으로 ±0.5%) CMOS 업그레이드입니다. 배터리로 작동하는 시스템을 위해 특별히 설계된 이 장치의 CMOS 구성은 낭비되는 접지 전류를 제거하여 배터리 수명을 크게 연장합니다. 총 공급 전류는 최대 부하에서 일반적으로 50μA입니다(바이폴라 레귤레이터보다 20~60 배 낮음). TC1223 및 TC1224의 주요 기능에는 초 저잡음 작동이 포함됩니다. 매우 낮은 드롭 아웃 전압(일반적으로 전 부하에서 각각 85mV 및 180mV)과 부하의 단계 변화에 신속하게 응답합니다. 공급 전류는 0.5μA(최대)로 감소하고 셧다운 입력이 낮을 때 VOUT은 0으로 떨어집니다. 이 소자는 또한과 온도 및 과전류 보호 기능을 모두 갖추고 있습니다. TC1223과 TC1224는 1μF의 출력 커패시터로 안정적이며 최대 출력 전류는 각각 50mA와 100mA입니다. 더 높은 출력 버전의 경우 TC1107, TC1108 및 TC1173 (IOUT = 300 mA) 데이터 시트를 참조하십시오.

 

Additional Features

• Extemely Low Ground Current for Longer Battery Life
• Very Low Dropout Voltage
• Guaranteed 50 mA, 100 mA Output (TC1223, TC1224, Respectively)
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• Over-Current and Over-Temperature Protection
• Pin Compatible Upgrades for Bipolar Regulators