具有可编程软启动的 1.5A LDO - TPS74801

TPS74801 (正在供货)

具有可编程软启动的 1.5A LDO

 

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描述

The TPS748 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified for TJ = –40°C to 125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5 × 5 QFN-20 package for compatibility with the TPS744.

特性

  • VOUT Range: 0.8 V to 3.6 V
  • Ultralow VIN Range: 0.8 V to 5.5 V
  • VBIAS Range 2.7 V to 5.5 V
  • Low Dropout: 60 mV Typical at 1.5 A, VBIAS = 5 V
  • Power Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
  • 2% Accuracy Over Line, Load, and Temperature
  • Programmable Soft-Start Provides Linear Voltage Startup
  • VBIAS Permits Low VIN Operation With Good Transient Response
  • Stable With Any Output Capacitor ≥ 2.2 µF
  • Available in a Small, 3-mm × 3-mm × 1-mm VSON-10 and 5 × 5 QFN-20 Packages

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参数 与其它产品相比 单通道 LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
TPS74801 TPS74201 TPS74301 TPS74401 TPS74701 TPS74901
1.5    1.5    1.5    3    0.5    3   
Adjustable Output    Adjustable Output    Adjustable Output
Tracking Output   
Adjustable Output    Adjustable Output    Adjustable Output   
0.8    0.8    0.8    0.8    0.8    0.8   
5.5    5.5    5.5    5.5    5.5    5.5   
0.8    0.8    0.8    0.8    0.8    0.8   
3.6    3.5    3.6    3.6    3.6    3.6   
1    3    3    3    1    3   
60    55    55    115    50    120   
2    1    1    1    2    2   
20    13    20    13    20    20   
28    52    45    50    27    28   
Ceramic    Cap Free
Ceramic   
Cap Free
Ceramic   
Cap Free
Ceramic   
Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125
-40 to 85   
-40 to 85    -40 to 125    -40 to 125    -40 to 125   
10VSON
20VQFN   
20VQFN
20VQFN
7DDPAK/TO-263   
20VQFN
7DDPAK/TO-263   
20VQFN
20VQFN
7DDPAK/TO-263   
10VSON    10VSON
20VQFN
7DDPAK/TO-263   

其它合格版本 TPS74801

版本 器件型号 定义
汽车电子 TPS74801-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件
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WEBENCH® Designer TPS74801

  最小   最大 范围
输入电压  V 0.8 to 5.5V
输出电压  V 0.8 to 3.6V
输出电流  A ≤ 1.5A
环境温度  °C -40 to 125°C


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