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TPS40055 宽输入 (8V-40V) 最高频率 1MHz 的同步降压控制器，具有输出驱动/吸入电流

TPS40055 描述

The TPS4005x is a family of high-voltage, wide input (8 V to40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft-start, UVLO, operating frequency, voltage feed- forward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads

	TPS40054	TPS40055	TPS40056	TPS40057	TPS40060	TPS40061
Topology	Buck	Buck	Buck	Buck	Buck	Buck
Vin(Min)(V)	8	8	10	8	10	10
Vin(Max)(V)	40	40	40	40	55	55
Vout(Min)(V)	0.7	0.7	0.7	0.7	0.7	0.7
Vout(Max)(V)	35	35	35	35	45	45
Regulated Outputs(#)	1	1	1	1	1	1
Iout(Max)(A)	20	20	20	20	10	10
Switching Frequency(Max)(kHz)	1000	1000	1000	1000	1000	1000
Iq(Typ)(mA)	1.5	1.5	1.5	1.5	1.5	1.5
Pin/Package	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP
Thermal Shutdown	Yes	Yes	Yes	Yes	Yes	Yes
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	85	85	90	85	100	100

TPS40055 特性

• Operating Input Voltage 8 Vto 40 V
• Input Voltage Feed-Forward Compensation
• < 1 % Internal 0.7-V Reference
• Programmable Fixed-Frequency Up to 1-MHz Voltage Mode Controller
• Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
• 16-Pin PowerPAD Package (øJC = 2°C/W)
• Thermal Shutdown
• Externally Synchronizable
• Programmable High-Side Sense Short-Circuit Protection
• Programmable Closed-Loop Soft-Start
• TPS40054 Source Only
• TPS40055 Source/Sink
• TPS40057 Source/Sink With VO Prebias
• APPLICATIONS
  • Power Modules
  • Networking/Telecom
  • Industrial/Servers

TPS40055 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
TPS40055PWP	ACTIVE	-40 to 85	1.30 | 1ku	HTSSOP (PWP) | 16	90 | TUBE	40055
TPS40055PWPG4	ACTIVE	-40 to 85	1.30 | 1ku	HTSSOP (PWP) | 16	90 | TUBE	40055
TPS40055PWPR	ACTIVE	-40 to 85	1.15 | 1ku	HTSSOP (PWP) | 16	2000 | LARGE T&R	40055
TPS40055PWPRG4	ACTIVE	-40 to 85	1.15 | 1ku	HTSSOP (PWP) | 16	2000 | LARGE T&R	40055

TPS40055 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
TPS40055PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM		TPS40055PWP
TPS40055PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS40055PWPG4	TPS40055PWPG4
TPS40055PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM		TPS40055PWPR
TPS40055PWPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS40055PWPRG4	TPS40055PWPRG4

TPS40055 应用技术支持与电子电路设计开发资源下载

1. TPS40055 数据资料 dataSheet 下载.PDF
2. TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . 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. Understanding Boost Power Stages In Switchmode Power Supplies   (PDF  149 KB)
6. Understanding Buck Power Stages In Switchmode Power Supplies   (PDF  173 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)

TPS40055 相关工具

名称	型号	公司	工具/软件类型
宽输入范围转换器提供 5V、2A	TPS40055EVM-002	Texas Instruments	开发电路板/EVM
评估模块将 12V 总线转换为 1.8V (15A)	TPS40055EVM-001	Texas Instruments	开发电路板/EVM
SwitcherPro(TM) 开关电源设计工具	SWITCHERPRO	Texas Instruments	应用软件

TPS40055 参考设计

说明	型号	公司
同步降压/线性参考设计	PMP405	Texas Instruments
同步降压参考设计	PMP430	Texas Instruments
同步降压参考设计	PMP425	Texas Instruments
同步降压参考设计	PMP354	Texas Instruments