TPS43331-Q1 汽车类双路开关和线性稳压器多轨电源

	TPS43331-Q1
Topology	2x Synchronus Buck,2x LDO
Vin(Min)(V)	5
Vin(Max)(V)	40
Vout(Min)(V)	1.2
Vout(Max)(V)	10
Regulated Outputs(#)	4
Switching Frequency(Max)(kHz)	200
Iq(Typ)(mA)	0.065
Pin/Package	38HTSSOP
Rating	Automotive

TPS43331-Q1 描述

The TPS43331 is a multi-rail output voltage regulator, with two synchronous switch mode controllers and two linear regulators. In addition, there is a reverse protected high side switch and voltage supervisor for monitoring the standby regulator and input voltage. The regulator outputs and high side switch are controlled either by discrete inputs for certain outputs and serial interface using the I2C configuration for outputs not controlled by discrete inputs.

The standby linear regulator (VSTBY) is high voltage tolerant and can be connected directly to the vehicle battery, the quiescent current is typically 65 uA to maintain a regulated output with light loads

TPS43331-Q1 特性

• Input Operating Range 5 V to 30 V (VBAT), With Transients Up to 40 V
• Two, Adjustable Output Voltage, Step-Down Switching Voltage Regulators
• External Clock Input
• Soft-Start Control for Step-Down Regulators
• Programmable, Linear Regulator (VSTBY), Low Quiescent Current (65uA typ.)
• Programmable, Linear Regulator (VLR)
• Overvoltage Detection and Shutdown
• Protected, High-Side Drive Ouput (HSD)
• Power-On Reset for Standby Regulator (VSTBY)
• Serial Communication, I2C Interface
• Low Voltage Warning Detection With Programmable Input Threshold (LVWIN, VBATW)
• Enable Feature, Controls VBUCK 1
• Programmable Power Good Delay Time (PGDLY) for VSTBY
• Current-Limit and Independent Thermal Detection and Shutdown Protection on All Regulators and High-Side Driver Output
• Operating Junction Temperature Range: -40°C to 150°C
• Thermally Enhanced 38-Pin DAP PowerPADTM Package
• APPLICATIONS
  • Qualified for Automotive Applications
  • Power Supply for Microcontrollers and DSPs

TPS43331-Q1 芯片订购指南

器件	状态	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
TPS43331QDAPRQ1	ACTIVE	2.10 | 1ku	TSSOP (PW) | 16	2000 | LARGE T&R	43000

TPS43331-Q1 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
TPS43331QDAPRQ1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR		TPS43331QDAPRQ1

TPS43331-Q1 应用技术支持与电子电路设计开发资源下载

1. TPS43331-Q1 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)

TPS43331-Q1 相关工具

名称	型号	公司	工具/软件类型
带 TPS43331-Q1 PWM 的 1 MHz、3.3V 高效同步降压转换器	TPS43331-Q1EVM-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

TPS43331-Q1 参考设计

说明	型号	公司
SEPIC，输入电压 3.3V，输出电压 3.3V	PMP169	Texas Instruments
热插拔、推挽、同步 降压、负反向、双路同步 降压参考设计	PMP156	Texas Instruments