TPS59124 - 用于低压电源轨嵌入式计算的双路同步降压控制器

TPS59124是TI德州仪器公司的一款控制器（外部开关）产品，TPS59124是用于低压电源轨嵌入式计算的双路同步降压控制器，本站介绍了TPS59124的封装应用图解、特点和优点、功能等，并给出了与TPS59124相关的TI元器件型号供参考。

TPS59124 - 用于低压电源轨嵌入式计算的双路同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS59124 is a dual, adaptive on-time D-CAP mode synchronous buck controller. This device enables system designers to cost effectively complete the suite of embedded computer power bus regulators with the absolute lowest external component count and lowest standby consumption. The fixed-frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high-efficiency down to milliampere range. The main control loop for the TPS59124 uses the D-CAP mode that optimized for low-ESR output capacitors such as POSCAP or SP-CAP promises fast transient response with no external compensation. Simple and separate power good signals for each channel allow flexibility of power sequencing. The device provides convenient and efficient operation with supply input voltages (V5IN, V5FILT) ranging from 4.5 V to 5.5 V, conversion voltages (drain voltage for the synchronous high-side MOSFET) from 3 V to 28 V and output voltages from 0.76 V to 5.5 V.

The TPS59124 is available in 24-pin QFN package specified from –40°C to 85°C ambient temperature range.

产品特性

High Efficiency, Low-Power Consumption, Shutdowns to <1 µA
Fixed Frequency Emulated On-Time Control, Frequency Selectable From Three Options
D-CAP Mode Enables Fast Transient Response
Auto-Skip Mode
Less Than 1% Initial Reference Accuracy
Low Output Ripple
Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.76 V to 5.5 V
Low-Side RDS(on) Loss-less Current Sensing
Adaptive Gate Drivers With Integrated Boost Diode
Internal 1.2-ms Voltage-Servo Soft Start
Power-Good Signals for Each Channel With Delay Timer
Output Discharge During Disable, Fault
APPLICATIONS
- I/O and Low Voltage System Bus in Embedded Computing Systems

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