TPS725 具有监控器的低输入电压、1A 低压降线性稳压器 | 德州仪器

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具有监控器的低输入电压、1A 低压降线性稳压器

具有监控器的低输入电压、1A 低压降线性稳压器 - TPS725


  • TPS7A91  -  Single-channel, low-noise, 1-A LDO regulator with power good.
  • TPS746  -  1-A LDO regulator with lower IQ in a 2-mm by 2-mm package


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.


  • 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
    • PCI Cards
    • Modem Banks
    • Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications


与其它产品相比 线性稳压器(LDO) 邮件 下载到电子表格中
Part number 立即下单 Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS725 立即下单 Adjustable Output
Fixed Output    
1     6     1.8     5.5     1.22     1.5
DDPAK/TO-263 | 5
SOT-223 | 6    
Power Good    
1     -40 to 125     23     150     1.48 | 1ku     Catalog     20     2     170     0.075     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)    
TPS726 立即下单 Fixed Output     1     6     1.8     2.5     1.26     1.26
DDPAK/TO-263 | 5
SOT-223 | 6    
Power Good    
1     -40 to 125     23     150     1.48 | 1ku     Catalog     20     2     170     0.075     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)