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TI UC2573DTR

제조업체
제조사 품번
UC2573DTR
LCSC 번호
C2658565
포장
SOIC-8
고객 번호
주요 제원
1 Adjustable Step-down type SOIC-8 DC DC Switching Controllers RoHS
데이터시트TI UC2573DTR
RoHS 준수1개 문서 이용 가능
대체 부품1
모든 주문 보장
100% 정품 · 30일 반품 또는 교환

제품 사양

전체
타입설명
카테고리Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
제조업체TI
포장SOIC-8
Synchronous RectifierNo
FeaturesCycle-by-cycle current limiting;Adjustable current limiting
Number of Channels1
TopologyBuck
Operating Voltage4.75V~30V
Switch tube (built-in/external)External
Output Voltage-
Operating Temperature-40℃~+85℃@(TA)
Output Current-
Frequency - Switching100kHz
Output TypeAdjustable
FunctionStep-down type
Quiescent Current50uA
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개요

AI 번역
  • Simple Single Inductor Buck PWM Stepdown Voltage Regulation
  • Drives External PMOs Switch
  • Contains UVLO Circuit
  • Includes Pulse-by-Pulse Current Limit
  • Low 50uA Sleep Mode Current
  • The UC3573 is a Buck pulse width modulator which steps down and regulates a positive input voltage. The chip is optimized for use in a single inductor buck switching converter employing an external PMOS switch. The block diagram consists of a precision reference, an error amplifier configured for voltage mode operation, an oscillator, a PwM comparator with latching logic, and a 0.5A peak gate driver. The UC3573 includes an undervoltage lockout circuit to insure sufficient input supply voltage is present before any switching activity can occur, and a pulse-by-pulse current limit. Input current can be sensed and limited to a user determined maximum value. In addition, a sleep comparator interfaces to the UVLO circuit which turns the chip off when the input voltage is below the UVLO threshold. This reduces the supply current to only 50uA, making the UC3573 ideal for battery powered applications.