TPS51275B-1
Description
The TPS51275B-1 device is a cost-effective, dualsynchronous buck controller targeted for notebook system-power supply solutions. The device has 5-V and 3.3-V low-dropout regulators (LDOs) and requires few external components.
Key Features
- 1 Input Voltage Range: 5 V to 24 V
- Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%)
- Built-in, 100-mA, 5-V, and 3.3-V LDOs
- Clock Output for Charge-Pump
- ±1% Reference Accuracy
- Adaptive On-Time D-CAP™ Mode Control Architecture with 300-kHz and 355-kHz Frequency Setting
- Out-of-Audio™ (OOA) Light-Load Operation
- Internal 3.2-ms Voltage Servo Soft-Start
- Low-Side RDS(on) Current Sensing Scheme
- Built-In Output Discharge Function
