Datasheet Texas Instruments TPS51275B-1RUKT — 数据表

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SLVSCT3 – MARCH 2015 TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs
1 Features 2 Applications 1 Input Voltage Range: 5 V to 24 V
Output Voltages: 5 V and 3.3 V (Adjustable Range
В±10%)
Built-in, 100-mA, 5-V, and 3.3-V LDOs
Clock Output for Charge-Pump
В±1% Reference Accuracy
Adaptive On-Time D-CAPв„ў Mode Control
Architecture with 300-kHz and 355-kHz Frequency
Setting
Out-of-Audioв„ў (OOA) Light-Load Operation
Internal 3.2-ms Voltage Servo Soft-Start
Low-Side RDS(on) Current Sensing Scheme
Built-In Output Discharge Function
Separate Enable Input for Switchers
Dedicated OC Setting Terminals
Power Good Indicator …