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TPS74801 具有可编程软启动的 1.5A LDO

TPS74801 描述

The TPS742xx low-dropout (LDO) linear regulators provide 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 will meet the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements. A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process

	TPS74201	TPS74301	TPS74401	TPS74701	TPS74801	TPS74901
Iout(Max)(A)	1.5	1.5	3	0.5	1.5	3
Vdo(Typ)(mV)	55	55	115	50	60	120
Iq(Typ)(mA)	3	3	3	1	1	3
Vin(Min)(V)	0.8	0.8	0.8	0.8	0.8	0.8
Vin(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5
Vout(Min)(V)			0.8
Vout(Max)(V)			3.5
Vout Adj(Min)(V)	0.8	0.8	0.8	0.8	0.8	0.8
Vout Adj(Max)(V)	3.5	3.5	3.5	3.6	3.6	3.6
Accuracy(%)	1	1	1	2	2	2
Output Capacitor(uF)				2.2	2.2	2.2
Output Capacitor Type	Capacitor Free	Capacitor Free	Capacitor Free	Ceramic	Ceramic	Ceramic
Pin/Package	20VQFN, 7DDPAK	20VQFN, 7DDPAK	20VQFN, 7DDPAK	10SON	10SON, 20VQFN	20VQFN, 7DDPAK
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs(#)	1	1	1	1	1	1

TPS74801 特性

• VOUT Range: 0.8V to 3.6V
• Ultralow VIN Range: 0.8V to 5.5V
• VBIAS Range 2.7V to 5.5V
• Low Dropout: 50mV typ at 500mA, VBIAS = 5V
• Power Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
• 2% Accuracy Over Line/Load/Temperature
• Programmable Soft-Start Provides Linear Voltage Startup
• VBIAS Permits Low VIN Operation with Good Transient Response
• Stable with Any Output Capacitor ≥ 2.2µF
• Available in a Small 3mm × 3mm × 1mm SON-10 Package
• APPLICATIONS
  • FPGA Applications
  • DSP Core and I/O Voltages
  • Post-Regulation Applications
  • Applications with Special Start-Up Time or Sequencing Requirements
  • Hot-Swap and Inrush Controls

TPS74801 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
TPS74801RGWR	ACTIVE	-40 to 85	2.00 | 1ku	VQFN (RGW) | 20	3000 | LARGE T&R	TPS 78801
TPS74801RGWRG4	ACTIVE	-40 to 85	2.00 | 1ku	VQFN (RGW) | 20	3000 | LARGE T&R	TPS 78801
TPS74801RGWT	ACTIVE	-40 to 85	2.20 | 1ku	VQFN (RGW) | 20	250 | SMALL T&R	TPS 78801
TPS74801RGWTG4	ACTIVE	-40 to 85	2.20 | 1ku	VQFN (RGW) | 20	250 | SMALL T&R	TPS 78801

TPS74801 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TPS74801RGWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS74801RGWR	TPS74801RGWR
TPS74801RGWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS74801RGWRG4	TPS74801RGWRG4
TPS74801RGWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS74801RGWT	TPS74801RGWT
TPS74801RGWTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS74801RGWTG4	TPS74801RGWTG4

TPS74801 应用技术支持与电子电路设计开发资源下载

1. TPS74801 数据资料 dataSheet 下载.PDF
2. TI 德州仪器LDO低压差线性稳压器驱动器选型与价格参考 . xls
3. Dual MOSFET Driver (PDF  498 KB)
4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
5. LDO PSRR Measurement Simplified   (PDF  140 KB)
6. LDO Noise Demystified   (PDF  782 KB)
7. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
9. 所选封装材料的热学和电学性质 (PDF 645 KB)
10. 高速数据转换 (PDF 1967 KB)

TPS74801 工具与软件

名称	型号	公司	工具/软件类型
TPS74801 评估模块	TPS74801EVM-177	Texas Instruments	开发电路板/EVM