TPS70751 具有加电顺序的双路输出低压降 (LDO) 稳压器

TPS70751 描述

TPS707xx family devices are designed to provide a complete power management solution for the TMS320TM DSP family, processor power, ASIC, FPGA, and digital applications where dual output voltage regulators are required. Easy programmability of the sequencing function makes the TPS707xx family ideal for any TMS320 DSP applications with power sequencing requirements. Differentiated features, such as accuracy, fast transient response, SVS supervisory circuit, manual reset inputs, and an enable function, provide a complete system solution. The TPS707xx family of voltage regulators offer very low dropout voltage and dual outputs with power-up sequence control, which is designed primarily for DSP applications. These devices have extremely low noise output performance without using any added filter bypass capacitors and are designed to have a fast transient response and be stable with 10uF low ESR capacitors.

	TPS70702	TPS70745	TPS70748	TPS70751	TPS70758
Iout(Max)(A)	0.25	0.25	0.25	0.25	0.25
Iout2(A)	0.15	0.15	0.15	0.15	0.15
Vdo(Typ)(mV)	83	83	83	83	83
Vin(Min)(V)	2.7	2.7	2.7	2.7	2.7
Vin(Max)(V)	6	6	6	6	6
Fixed Output Options(V)		3.3/2.5, 3.3/1.8, 3.3/1.5, 3.3/1.2	3.3/2.5, 3.3/1.8, 3.3/1.5, 3.3/1.2	3.3/2.5, 3.3/1.8, 3.3/1.5, 3.3/1.2	3.3/2.5, 3.3/1.8, 3.3/1.5, 3.3/1.2
Accuracy(%)	2	2	2	2	2
Output Capacitor(uF)	10	10	10	10	10
Output Capacitor Type	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum
Pin/Package	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP
Vout2(Min)(V)	1.22	1.2	1.5	1.8	2.5
Vout2(Max)(V)	5.5	1.2	1.5	1.8	2.5
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Vout(Min)(V)		3.3	3.3	3.3	3.3
Vout(Max)(V)		3.3	3.3	3.3	3.3
Regulated Outputs(#)	2	2	2	2	2

TPS70751 特性

• Dual Output Voltages for Split-Supply Applications
• Selectable Power-Up Sequencing for DSP Applications (See Part Number TPS708xx for Independent Enable Outputs)
• Output Current Range of 250mA on Regulator 1 and 125mA on Regulator 2
• Fast Transient Response
• Voltage Options: 3.3V/2.5V, 3.3V/1.8V, 3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable Outputs
• Open Drain Power-On Reset with 120ms Delay
• Open Drain Power Good for Regulator 1
• Ultralow 190uA (typ) Quiescent Current
• 1uA Input Current During Standby
• Low Noise: 65uVRMS Without Bypass Capacitor
• Quick Output Capacitor Discharge Feature
• Two Manual Reset Inputs
• 2% Accuracy Over Load and Temperature
• Undervoltage Lockout (UVLO) Feature
• 20-Pin PowerPADTM TSSOP Package
• Thermal Shutdown Protection

TPS70751 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
TPS70751PWP	ACTIVE	-40 to 125	2.55 | 1ku	HTSSOP (PWP) | 20	70 | TUBE	PT70751
TPS70751PWPG4	ACTIVE	-40 to 125	2.55 | 1ku	HTSSOP (PWP) | 20	70 | TUBE	PT70751
TPS70751PWPR	ACTIVE	-40 to 125	2.35 | 1ku	HTSSOP (PWP) | 20	2000 | LARGE T&R	PT70751
TPS70751PWPRG4	ACTIVE	-40 to 125	2.35 | 1ku	HTSSOP (PWP) | 20	2000 | LARGE T&R	PT70751

TPS70751 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
TPS70751PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70751PWP	TPS70751PWP
TPS70751PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70751PWPG4	TPS70751PWPG4
TPS70751PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70751PWPR	TPS70751PWPR
TPS70751PWPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70751PWPRG4	TPS70751PWPRG4

TPS70751 应用技术支持与电子电路设计开发资源下载

1. TPS70751 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)

TPS70751 工具与软件

名称	型号	公司	工具/软件类型
双路输出 LDO、250mA/500mA 且具有负载仿真器的评估器	TPS70751EVM-152	Texas Instruments	开发电路板/EVM
采用 5 条或 6 条引线 SOT23 (DBV) 封装与大多数正输出 LDO 稳压器兼容的 DEM-SOT23LDO	DEM-SOT23LDO	Texas Instruments	开发电路板/EVM