TPS70858 具有 SVS 和独立启用的双路输出 LDO

TPS70858 描述

The TPS708xx is a low dropout voltage regulator with integrated SVS (RESET, POR, or power on reset) and power good (PG) functions. These devices are capable of supplying 250 mA and 125 mA by regulator 1 and regulator 2 respectively. Quiescent current is typically 190 uA at full load. Differentiated features, such as accuracy, fast transient response, SVS supervisory circuit (power on reset), manual reset input, and independent enable functions provide a complete system solution. The TPS708xx family of voltage regulators offers very low dropout voltage and dual outputs. 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 10-uF low ESR capacitors.

	TPS70802	TPS70845	TPS70848	TPS70851	TPS70858
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

TPS70858 特性

• Dual Output Voltages for Split-Supply Applications
• Independent Enable Functions (See Part Number TPS707xx for Sequenced Outputs)
• Output Current Range of 250 mA on Regulator 1 and 125 mA on Regulator 2
• Voltage Options: 3.3-V/2.5-V, 3.3-V/1.8-V, 3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable Outputs
• Open Drain Power-On Reset with 120-ms Delay
• Open Drain Power Good for Regulator 1 and Regulator 2
• Ultralow 190-uA (typ) Quiescent Current
• 1-uA Input Current During Standby
• Low Noise: 65 uVRMS Without Bypass Capacitor
• Quick Output Capacitor Discharge Feature
• One Manual Reset Input
• 2% Accuracy Over Load and Temperature
• Undervoltage Lockout (UVLO) Feature
• 20-Pin PowerPADTM TSSOP Package
• Thermal Shutdown Protection

TPS70858 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
TPS70858PWP	ACTIVE	-40 to 125	2.55 | 1ku	HTSSOP (PWP) | 20	70 | TUBE	PT70858
TPS70858PWPG4	ACTIVE	-40 to 125	2.55 | 1ku	HTSSOP (PWP) | 20	70 | TUBE	PT70858
TPS70858PWPR	ACTIVE	-40 to 125	2.35 | 1ku	HTSSOP (PWP) | 20	2000 | LARGE T&R	PT70858
TPS70858PWPRG4	ACTIVE	-40 to 125	2.35 | 1ku	HTSSOP (PWP) | 20	2000 | LARGE T&R	PT70858

TPS70858 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
TPS70858PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70858PWP	TPS70858PWP
TPS70858PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70858PWPG4	TPS70858PWPG4
TPS70858PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70858PWPR	TPS70858PWPR
TPS70858PWPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS70858PWPRG4	TPS70858PWPRG4

TPS70858 应用技术支持与电子电路设计开发资源下载

1. TPS70858 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)

TPS70858 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	TPS70858EVM-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