产品概述
The TPS51123ARGET is a dual-synchronous step down Buck Controller with Out-of-Audio™ operation and targeted for notebook system power supply solutions. It provides 5 and 3.3V LDOs and requires few external components. The TPS51123A supports high-efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 to 28V and supports output voltages from 2 to 5.5V.
- Built-in 1% 2V reference output
- With/without Out-of-Audio™ mode selectable light-load and PWM-only operation
- Internal 1.6ms voltage servo soft-start
- Adaptive on-time control architecture with four selectable frequency setting
- 4500ppm/°C RDS(on) Current sensing
- Built-in output discharge
- Power good output
- Built-in OVP/UVP/OCP
- Thermal shutdown (non-latch)
应用
电源管理
产品信息
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- 28V
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- 2
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- 2
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- 4
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- VQFN
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- 24引脚
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- -40°C
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- 85°C
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- -
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- -
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- MSL 2 - 1年