TPS725 - 具有监控器的低输入电压、1A 低压降线性稳压器

TPS725是TI德州仪器公司的一款单通道LDO产品，TPS725是具有监控器的低输入电压、1A 低压降线性稳压器，本站介绍了TPS725的封装应用图解、特点和优点、功能等，并给出了与TPS725相关的TI元器件型号供参考。

TPS725 - 具有监控器的低输入电压、1A 低压降线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The TPS725xx family of 1-A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. An adjustable option ranging from 1.22 V to 5.5 V is also available. The integrated supervisory circuitry provides an active low RESET signal when the output falls out of regulation. The no capacitor/any capacitor feature allows the customer to tailor output transient performance as needed. Therefore, compared to other regulators capable of providing the same output current, this family of regulators can provide a stand-alone power supply solution or a post regulator for a switch mode power supply.

These regulators are ideal for higher current applications. The family operates over a wide range of input voltages (1.8 V to 6 V) and has very low dropout (170 mV at 1-A).

Ground current is typically 210 µA at full load and drops to less than 80 µA at no load. Standby current is less than 1 µA.

Each regulator option is available in either a SOT223-5, D (TPS72501 only), or DDPAK package. With a low input voltage and properly heatsinked package, the regulator dissipates more power and achieves higher efficiencies than similar regulators requiring 2.5 V or more minimum input voltage and higher quiescent currents. These features make it a viable power supply solution for portable, battery-powered equipment.

Although an output capacitor is not required for stability, transient response and output noise are improved with a 10-µF output capacitor.

Unlike some regulators that have a minimum current requirement, the TPS725 family is stable with no output load current. The low noise capability of this family, coupled with its high current operation and ease of power dissipation, make it ideal for telecom boards, modem banks, and other noise-sensitive applications.

产品特性

1-A Output Current
Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V Fixed-Output and Adjustable Versions (1.2-V to 5.5-V)
Input Voltage Down to 1.8 V
Low 170-mV Dropout Voltage at 1 A (TPS72525)
Stable With Any Type/Value Output Capacitor
Integrated Supervisor (SVS) With 50-ms RESET Delay Time
Low 210-µA Ground Current at Full Load (TPS72525)
Less than 1-µA Standby Current
±2% Output Voltage Tolerance Over Line, Load, and Temperature (-40°C to 125°C)
Integrated UVLO
Thermal and Overcurrent Protection
5-Lead SOT223-5 or DDPAK and 8-Pin SOP (TPS72501 only) Surface Mount Package
APPLICATIONS
- PCI Cards
- Modem Banks
- Telecom Boards
- DSP, FPGA, and Microprocessor Power Supplies
- Portable, Battery-Powered Applications

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