产品详细信息

Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 1.205 Vout (Max) (V) 40 Iout (Max) (A) 10 Iq (Typ) (uA) 3200 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 1.205 Vout (Max) (V) 40 Iout (Max) (A) 10 Iq (Typ) (uA) 3200 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • LM25088Q is an Automotive Grade Product that
    is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • Emulated Current Mode Control
  • Drives External High-Side N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 4.5V to 42V
  • Low IQ Shutdown and Standby Modes
  • High Duty Cycle Ratio Feature for Reduced Dropout
    Voltage
  • Spread Spectrum EMI Reduction (LM25088-1)
  • Hiccup Timer for Overload Protection (LM25088-2)
  • Adjustable Output Voltage from 1.205 V with 1.5%
    Feedback Reference Accuracy
  • Wide Bandwidth Error Amplifier
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • High Voltage, Low Dropout Bias Regulator
  • Thermal Shutdown Protection
  • Package: HTSSOP 16-Pin
  • LM25088Q is an Automotive Grade Product that
    is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • Emulated Current Mode Control
  • Drives External High-Side N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 4.5V to 42V
  • Low IQ Shutdown and Standby Modes
  • High Duty Cycle Ratio Feature for Reduced Dropout
    Voltage
  • Spread Spectrum EMI Reduction (LM25088-1)
  • Hiccup Timer for Overload Protection (LM25088-2)
  • Adjustable Output Voltage from 1.205 V with 1.5%
    Feedback Reference Accuracy
  • Wide Bandwidth Error Amplifier
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • High Voltage, Low Dropout Bias Regulator
  • Thermal Shutdown Protection
  • Package: HTSSOP 16-Pin

The LM25088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient high voltage buck converter using a minimum number of external components. The LM25088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 42 V. This easy to use controller includes a level shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage/low output voltage applications. The LM25088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM25088 is available in two versions: The LM25088-1 provides a +/–5% frequency dithering function to reduce the conducted and radiated EMI, while the LM25088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability. The device is available in a thermally enhanced HTSSOP-16 pin package.

The LM25088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient high voltage buck converter using a minimum number of external components. The LM25088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 42 V. This easy to use controller includes a level shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage/low output voltage applications. The LM25088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM25088 is available in two versions: The LM25088-1 provides a +/–5% frequency dithering function to reduce the conducted and radiated EMI, while the LM25088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability. The device is available in a thermally enhanced HTSSOP-16 pin package.

下载

技术文档

star = 有关此产品的 TI 精选热门文档
未找到结果。请清除搜索,并重试。
查看全部 8
类型 项目标题 下载最新的英语版本 日期
* 数据表 LM25088, LM25088-Q1 Wide Input Range Non-Synchronous Buck Controller 数据表 (Rev. J) 21 Jan 2015
选择指南 电源管理指南 2018 (Rev. K) 31 Jul 2018
选择指南 电源管理指南 2018 (Rev. R) 25 Jun 2018
模拟设计期刊 Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 21 Jul 2016
EVM 用户指南 AN-1931 LM25088 Evaluation Board (Rev. D) 26 Apr 2013
应用手册 Improve Power Converter Reliability Using Hiccup-Mode Current Limiting 11 May 2009
应用手册 Understanding and Applying Current-Mode Control Theory 19 Aug 2007
应用手册 Emulatd Cur Mode Cntrl for Buck Regs Using Sample and Hold Technique 21 Mar 2007

设计和开发

如需其他信息或资源,请查看下方列表,点击标题即可进入详情页面。

评估板

LM25088MH-1EVAL — LM25088-1 - 具有抖动的宽输入范围非同步降压控制器评估模块

The LM25088-1 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM25088 controller IC. The LM25088 evaluation board is available in two versions (like the LM25088 controller): the LM25088-1 (...)

TI.com 無法提供
评估板

LM25088MH-2EVAL — LM25088-2 - 具有打嗝模式重启功能的宽输入范围非同步降压控制器

The LM25088-2 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM25088 controller): the LM25088-1 (...)

TI.com 無法提供
仿真模型

LM25088 PSpice Average Model

SNVM388.ZIP (49 KB) - PSpice Model
仿真模型

LM25088 TINA-TI STARTUP Reference Design

SNVM567.TSC (121 KB) - TINA-TI Reference Design
仿真模型

LM25088 TINA-TI STEADY STATE Reference Design

SNVM568.TSC (134 KB) - TINA-TI Reference Design
仿真模型

LM25088 TINA-TI LOAD TRANSIENT Reference Design

SNVM569.TSC (95 KB) - TINA-TI Reference Design
仿真模型

LM25088 TINA-TI Transient Spice Model

SNVM570.ZIP (13 KB) - TINA-TI Spice Model
仿真模型

LM25088 TINA-TI LINE TRANSIENT Reference Design

SNVM571.TSC (93 KB) - TINA-TI Reference Design
仿真模型

LM25088 Unencrypted PSpice Average Model

SNVM866.ZIP (1 KB) - PSpice Model
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
计算工具

LM25088-5088QUICK-CALC — LM(2)5088 快速入门计算器

封装 引脚数 下载
HTSSOP (PWP) 16 了解详情

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持与培训

视频