TC1072 - 50mA CMOS LDO w/ Shutdown, Error Output, and Vref Bypass

TC1072 - 50mA CMOS LDO w/ Shutdown, Error Output, and Vref Bypass

 

MICROCHIP

 

Summary

 TC1072 및 TC1073은 구형 (바이폴라) 저전압 강하 레귤레이터를 위한 고정밀 (일반적으로 ± 0.5 %) CMOS 업그레이드입니다. 배터리 구동 시스템을 위해 특별히 설계된 이 장치의 CMOS 구성은 낭비되는 접지 전류를 제거하여 배터리 수명을 크게 연장시킵니다. 총 공급 전류는 일반적으로 전 부하에서 50μA입니다 (바이폴라 레귤레이터보다 20 ~ 60 배 낮음). 이 디바이스의 주요 특징으로는 초 저노이즈 동작 (옵션 바이 패스 입력 포함); 매우 낮은 전압 강하 (일반적으로 85mV, TC1072 및 180mV, 전 부하시 TC1073) 및 부하의 단계 변화에 대한 빠른 응답. 소자가 (낮은 입력 전압 또는 과도한 출력 전류로 인해) 제어를 벗어나면 오류 출력 (ERROR)이 발생합니다. ERROR는 배터리 부족 경고 또는 프로세서 RESET 신호 (외부 RC 네트워크 추가)로 사용할 수 있습니다. 공급 전류는 0.5μA (최대)로 감소되며, 셧다운 입력이 낮으면 VOUT 및 ERROR가 모두 디스에이블 됩니다. 이 소자는과 온도 및 과전류 보호 기능을 통합하고 있습니다. 

 TC1072 및 TC1073은 1μF의 출력 커패시터로 안정적이며 50mA의 최대 출력 전류를 갖습니다. 보다 높은 출력 전류 버전의 경우 TC1185, TC1186, TC1187 (IOUT=150mA) 및 TC1107, TC1108 및 TC1173 (IOUT=300mA) 데이터 시트를 참조하십시오.

 

Additional Features

• Zero Ground Current for Longer Battery Life!
• Very Low Dropout Voltage
• Choice of 50mA and 100mA Output (TC1072, TC1073, Respectively)
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• ERROR Ouput can be Used as a Low Battery Detector, or Processor Reset Generator
• Bypass Input for Ultra-Quiet Operation
• Over-Current and Over-Temperature Protection
• Pin Compatible Upgrades for Bipolar Regulators