TPS53129 - 用于低压电源轨的双路同步降压控制器

TPS53129是TI德州仪器公司的一款控制器（外部开关）产品，TPS53129是用于低压电源轨的双路同步降压控制器，本站介绍了TPS53129的封装应用图解、特点和优点、功能等，并给出了与TPS53129相关的TI元器件型号供参考。

TPS53129 - 用于低压电源轨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

产品特性

D-CAP2™ Mode Control
- Fast Transient Response
- No External Parts Required for Loop Compensation
- Compatible With Ceramic Output Capacitors
High Initial Reference Accuracy (±1%)
Low Output Ripple
Wide Input Voltage Range: 4.5 V to 24 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
Adjustable Soft Start
Non-Sinking Pre-Biased Soft Start
700-kHz Switching Frequency
Cycle-by-Cycle Over-Current Limiting Control
30-mV to 300-mV OCP Threshold Voltage
Thermally Compensated OCP by 4000 ppm/°C at ITRIP
Auto-Skip Eco-mode™ for High Efficiency at Light Load

产品应用

Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
- Digital TV Power Supply
- Networking Home Terminal
- Digital Set-Top Box (STB)
- DVD Player/Recorder
- Gaming Consoles

产品说明

The TPS53129 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The TPS53129 enables system designers to complete the suite of various end equipment’s power bus regulators with cost effective, low component count, and low standby current solution. The main control loop for the TPS53129 uses the D-CAP2™ mode control which provides a very fast transient response with no external components. The TPS53129 also has a circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. 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 device provides convenient and efficient operation with input voltages from 4.5 V to 24 V and output voltages from 0.76 V to 5.5 V.

The TPS53129 is available in 4-mm x 4-mm 24-pin QFN (RGE) or 24-pin TSSOP (PW) packages, and is specified from -40°C to 85°C ambient temperature range.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS53129	VQFN (24)	4.00 mm x 4.00 mm
TPS53129	TSSOP (24)	4.40 mm x 7.80 mm

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