TPS5130 - 具有 LDO 控制器的三路同步降压控制器

TPS5130是TI德州仪器公司的一款控制器（外部开关）产品，TPS5130是具有 LDO 控制器的三路同步降压控制器，本站介绍了TPS5130的封装应用图解、特点和优点、功能等，并给出了与TPS5130相关的TI元器件型号供参考。

TPS5130 - 具有 LDO 控制器的三路同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS5130 is composed of three independent synchronous buck regulator controllers (SBRC) and one low drop-out (LDO) regulator controller. On-chip high-side and low-side synchronous rectifier drivers are integrated to drive less expensive N-channel MOSFETs. The LDO controller can also drive an external N-channel MOSFET. Since the input current ripple is minimized by operating 180 degree out of phase, it allows a smaller input capacitance resulting in reduced power supply cost. The SBRC of the TPS5130 automatically adjusts from PWM mode to SKIP mode to maintain high efficiency under light load conditions. Resistor-less current protection for the synchronous buck controller and the fixed high-side driver voltage simplifies the system design and reduces the external parts count. The LDO controller has a current limit protection and overshoot protection to suppress output voltage hump at load transient. To further extend battery life, the TPS5130 features dead-time control and very low quiescent current.

产品特性

Three Independent Step-Down DC/DC Controllers and One LDO Controller
Input Voltage Range
- Switcher: 4.5 V ~ 28 V
- LDO: 1.1 V ~ 3.6 V
Output Voltage Range
- Switcher: 0.9 V ~ 5.5 V
- LDO: 0.9 V ~ 2.5 V
Synchronous for High Efficiency
Precision Vref (±1.5%)
PWM Mode Control : Max. 500 kHz Operation
Auto PWM/SKIP Mode Available
High Speed Error Amplifier
Over Current Protection With Temperature Compensation Circuit for Each Channel
Overvoltage and Undervoltage Protection
Programmable Short-Circuit Protection
Powergood With Programmable Delay Time
5-V and 3.3-V Linear Regulators
APPLICATIONS
- Notebook PCs, PDAs
- Consumer Game Systems
- DSP Application

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